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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 4785. Отображено 100.
08-03-2012 дата публикации

Method for producing liquid ejecting recording head

Номер: US20120056950A1
Принадлежит: Sony Corp, Taiyo Ink Mfg Co Ltd

A liquid ejecting recording head using a flow duct material which includes an oxetane resin composition that contains, as necessary components, an oxetane compound having at least one oxetanyl group in a molecule, and a cationic photopolymerization initiator.

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15-03-2012 дата публикации

Liquid ejecting head, liquid ejecting apparatus, and actuator device

Номер: US20120062073A1
Автор: Hiromu Miyazawa, Jiro Kato
Принадлежит: Seiko Epson Corp

A liquid ejecting head including a pressure-generating chamber which communicates with a nozzle opening, and a piezoelectric element including a first electrode, a piezoelectric layer formed above the first electrode and having a perovskite structure represented by the general formula ABO 3 , and a second electrode formed above the piezoelectric layer, wherein the piezoelectric layer, lead, zirconium, and titanium are present at A sites of the perovskite structure, and lead, zirconium, and titanium are present at B sites of the perovskite structure.

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29-03-2012 дата публикации

Stream printing method

Номер: US20120075385A1
Принадлежит: Individual

A printing method includes providing a print head. The print head includes a valve and at least one orifice. Fluid is ejected from the orifice in a generally continuous stream. The fluid includes a conductive material. The fluid is deposited in a pattern on a substrate to form an electrically conductive deposit. At least a portion of the pattern includes a generally straight line.

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12-04-2012 дата публикации

Piezoelectric element, liquid ejecting head and liquid ejecting apparatus

Номер: US20120086757A1
Автор: Kazuya Kitada
Принадлежит: Seiko Epson Corp

A piezoelectric element comprises a piezoelectric member made of a complex oxide and an electrode which contains platinum. The complex oxide contains potassium sodium niobate and bismuth ferrate. The molar ratio of the bismuth ferrate to the sum of the potassium sodium niobate and the bismuth ferrate is in the range of 3% to 10%. And the molar ratio of the sum of potassium and sodium to niobium is in the range of 103% to 115%.

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03-05-2012 дата публикации

Circuit board for ink jet head, ink jet head having the same, method for cleaning the head and ink jet printing apparatus using the head

Номер: US20120105537A1
Принадлежит: Canon Inc

In an ink jet head using a thermal energy for ejecting ink, this invention aims to reliably and uniformly remove kogations deposited on a heat application portion in contact with the ink. To realize this objective, the upper protective layer is arranged in an area including the heat application portion so that it can be electrically connected to serve as an electrode which causes an electrochemical reaction with the ink. The upper protective layer is formed of a material containing a metal which is dissolved by the electrochemical reaction and which does not form, on heating, an oxide film which hinders the dissolution. With this arrangement, a reliable electrochemical reaction can be produced to dissolve a surface layer of the upper protective layer, thereby removing kogations on the heat application portion reliably and uniformly.

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09-08-2012 дата публикации

Bubble purging system for a fluid ejection head

Номер: US20120200623A1
Автор: Gregory Alan Long
Принадлежит: Individual

A method and system for purging bubbles from a fluid ejection head comprising a plurality of fluid flow channels including a first plurality of fluid flow channels flowing a first ink to a first actuator device and a second plurality of fluid flow channels for flowing a second ink to a second actuator device. During a bubble purging operation the first and second actuator devices are pulsed with different energies that depend on the viscosity of the first ink and the second ink. Heating the inks with different energies, results in the viscosity of the first ink to be same as the viscosity of the second ink. In one embodiment, a test pattern that includes a plurality of dots is printed to determine a clogged fluid ejection nozzle. Based on the determination, an actuator device corresponding to the clogged fluid ejection nozzle is pulsed.

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27-09-2012 дата публикации

Liquid ejecting head and liquid ejecting apparatus

Номер: US20120242739A1
Автор: Hiroshige Owaki
Принадлежит: Seiko Epson Corp

A liquid ejecting head includes a flow channel forming substrate made of silicon and having pressure generating chambers that communicate with nozzles through which liquid is ejected, a piezoelectric elements that is disposed on the flow channel forming substrate so as to oppose the pressure generating chambers and varies a pressure of a liquid in the pressure generating chambers, and a protective substrate which has a holding section that houses the pressure generating unit and is bonded to a side of the flow channel forming substrate where the pressure generating unit is disposed, and the flow channel member is made of silicon and is provided with a thermistor that is disposed on a side of the flow channel member opposite to the flow channel forming substrate.

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18-10-2012 дата публикации

Inkjet printer and printing method

Номер: US20120262526A1
Принадлежит: MIMAKI ENGINEERING CO LTD

The effect of air resistance acting on ink drops discharged from nozzles of an ink-jet head is appropriately controlled, for example, by means of a method suitable for a breathable medium, such as a cloth and the like. In this way, for example, high-resolution printing, printing with a great gap distance, and the like is properly implemented. An ink-jet printer 10, for printing on a breathable medium 50 through which air passes from a printing surface to a rear surface, includes an ink-jet head 12 for discharging ink drops toward the medium 50, and a rear side component 14, having a hollow portion that opens its space toward the rear surface of the medium 50; and then ink-jet head 12 includes nozzles for discharging ink drops to the medium 50, and an airflow blowing section for blowing airflow, at least a part of the airflow going through a travel path of the ink drops, and the airflow moving toward the medium 50 together with the ink drops; and the rear side component 14 receives the airflow, passing through from the printing surface of the medium 50 to the rear surface of the same, with the hollow portion.

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01-11-2012 дата публикации

Method for fabricating fluid ejection device

Номер: US20120273597A1
Принадлежит: Individual

Disclosed is a method for fabricating a fluid ejection device. The method includes forming a drive circuitry layer on a substrate. The method further includes fabricating at least one fluid ejection element on the substrate. Furthermore, the method includes forming at least one slot within a top portion of the substrate, and forming at least one fluid feed trench within a bottom portion of the substrate. Each fluid feed trench of the at least one fluid feed trench is in fluid communication with one or more slots of the at least one slot. Additionally, the method includes laminating a flow feature layer and a nozzle plate over the substrate having the at least one slot and the at least one fluid feed trench formed therewithin. Further disclosed is a fluid ejection device fabricated using the aforementioned to method.

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11-04-2013 дата публикации

Piezoelectric material, piezoelectric element, liquid discharge head, ultrasonic motor, and dust cleaning device

Номер: US20130088120A1
Принадлежит: Canon Inc

A piezoelectric material including a barium bismuth niobate-based tungsten bronze structure metal oxide having a high degree of orientation is provided. A piezoelectric element, a liquid discharge head, an ultrasonic motor, and a dust cleaning device including the piezoelectric material are also provided. A piezoelectric material includes a tungsten bronze structure metal oxide that includes metal elements which are barium, bismuth, and niobium, and tungsten. The metal elements satisfy following conditions on a molar basis: when Ba/Nb=a, 0.30≦a≦0.40, and when Bi/Nb=b, 0.012≦b≦0.084. The tungsten content on a metal basis is 0.40 to 3.00 parts by weight relative to 100 parts by weight of the tungsten bronze structure metal oxide. The tungsten bronze structure metal oxide has a c-axis orientation.

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16-05-2013 дата публикации

System and method for recycling inkjet-printing material

Номер: US20130119080A1
Автор: YU SONG

The present invention provides a system and a method for recycling an inkjet-printing material. The recycling method comprises the following steps: utilizing a wiper configured to withdraw the inkjet-printing material dispensed by the nozzles, and collecting the inkjet-printing material by means of a recycling tank; mixing a fresh inkjet-printing material with the inkjet-printing material collected by the recycling tank, so as to form a reuse inkjet-printing material; and providing the reuse inkjet-printing material to the nozzles. The present invention can greatly save the inkjet-printing material.

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20-06-2013 дата публикации

Liquid ejecting head, liquid ejecting apparatus, and piezoelectric element

Номер: US20130155155A1
Автор: Hidemichi Furihata
Принадлежит: Seiko Epson Corp

A liquid ejecting head contains a piezoelectric element having a piezoelectric layer and an electrode disposed on the piezoelectric layer, in which the piezoelectric layer contains a complex oxide containing bismuth, iron, barium, and titanium and having a perovskite structure, has a yield stress of 5.66 GPa or more, and has a Young's modulus of 114 GPa or more.

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15-08-2013 дата публикации

Method and apparatus for load-locked printing

Номер: US20130209669A1
Принадлежит: Kateeva Inc

The disclosure relates to a method and apparatus for preventing oxidation or contamination during a circuit printing operation. The circuit printing operation can be directed to OLED-type printing. In an exemplary embodiment, the printing process is conducted at a load-locked printer housing having one or more of chambers. Each chamber is partitioned from the other chambers by physical gates or fluidic curtains. A controller coordinates transportation of a substrate through the system and purges the system by timely opening appropriate gates. The controller may also control the printing operation by energizing the print-head at a time when the substrate is positioned substantially thereunder.

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29-08-2013 дата публикации

Method of manufacturing liquid ejecting head, liquid ejecting apparatus, and method of manufacturing piezoelectric element

Номер: US20130222483A1
Принадлежит: Seiko Epson Corp

Provided is a method of manufacturing a liquid ejecting head including a pressure generating chamber communicating with a nozzle opening and a piezoelectric element including a piezoelectric layer and an electrode, the method including: forming a first piezoelectric precursor film containing Bi and Fe, or Ba and Ti; forming a first piezoelectric layer by heating and crystallizing the first piezoelectric precursor film; forming a second piezoelectric precursor film further containing at least one selected from Li, B, and Cu on the first piezoelectric layer, in addition to Bi and Fe, or Ba and Ti contained in the first piezoelectric precursor film; and forming the piezoelectric layer by heating and crystallizing the first piezoelectric layer and the second piezoelectric precursor film.

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26-09-2013 дата публикации

Piezoelectric thin film element and method of manufacturing the same, droplet discharge head and inkjet recording device using the piezoelectric thin film element

Номер: US20130250007A1
Принадлежит: Ricoh Co Ltd

A piezoelectric thin film element includes a vibration plate, a lower electrode provided on the vibration plate and made of a conductive oxide, a piezoelectric thin film provided on the lower electrode and made of a polycrystalline substance, and an upper electrode provided on the piezoelectric thin film, wherein the lower electrode includes a titanium oxide film formed on the vibration plate, a platinum film formed on the titanium oxide film, and a conductive oxide film formed on the platinum film and, the platinum film and the conductive oxide film being a solid film with no holes.

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26-09-2013 дата публикации

Liquid ejecting head, liquid ejecting apparatus and piezoelectric element

Номер: US20130250010A1
Автор: Tomohiro Sakai
Принадлежит: Seiko Epson Corp

A liquid ejecting head which discharges a liquid from a nozzle opening including a piezoelectric body layer and a piezoelectric element possessing an electrode which is arranged on the piezoelectric body layer, wherein the piezoelectric body layer consists of a complex oxide having a perovskite structure, and when 2θ is fixed within the range of 21.9° to 22.7° to scan in the direction of the χ-axis, the piezoelectric body layer has a peak in the range of 4.75° to 28.3° and when 2θ is fixed within the range of 31.1° to 32.6° to scan in the direction of the χ-axis, the piezoelectric body layer has a peak in the range of 24.8° to 40.75°.

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19-12-2013 дата публикации

Method for manufacturing touch-sensitive element on polarizer and polarization device

Номер: US20130335822A1
Принадлежит: J Touch Corp

The disclosure is related to a method for manufacturing touch-sensitive element on a polarizer, and a polarization device made by the method. In one of the embodiments of the invention, a polarizing substrate is firstly prepared. The method then coats first transparent conductive material onto the substrate, and uses a patterning process to form multiple sensing areas and wiring areas. There are continuous paths and adjacent non-continuous paths are existed in between the sensing areas. A bridged insulating layer is formed as processing the step for spray-coating or inject-printing insulating material upon the areas of the non-continuous pads. A bridged conductive layer is formed upon the insulation layer as spray-coating or inject-printing a second transparent conductive material there-on. The bridged conductive layer is to electrically connect the non-continuous pads. The method is therefore forming the polarization device with the touch-screen elements.

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20-03-2014 дата публикации

Method for controlling the temperature of a jetting device

Номер: US20140076988A1
Принадлежит: Oce Technologies BV

A method for controlling a temperature of a jetting device, the jetting device being configured to jet droplets of a fluid at a high temperature, the fluid comprising an electrically conductive fluid, wherein at least a part of the fluid is positioned in a magnetic field, includes heating the jetting device to an operating temperature, being defined as the temperature suitable for jetting droplets, using a heat jetting droplets by providing an electrical actuation current in the part of the fluid positioned in the magnetic field, thereby generating a force in the conductive fluid; determining upcoming jetting conditions, the upcoming jetting conditions being defined as the jetting conditions corresponding to droplets to be jetted at a time (t 1 ) which is later than the present time (t 0 ); determining settings for the heat based on the determined upcoming jetting conditions; controlling the heating of the jetting device using the heat in accordance with the determined settings.

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01-01-2015 дата публикации

Exhaust Substance Removal

Номер: US20150000526A1
Принадлежит: Hewlett Packard Development Co LP

In one implementation, a substance removal apparatus may include a collection unit and a removal unit. The collection unit may have a structure forming a channel and an inlet to receive an exhaust from a print system. The removal unit may separate a substance from the exhaust and transfer heat from the exhaust to the print system. The removal unit may include a heat exchanger and an impaction mechanism.

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07-01-2021 дата публикации

HEAD MODULE, HEAD DEVICE, AND LIQUID DISCHARGE APPARATUS

Номер: US20210001652A1
Принадлежит:

A head module includes: a plurality of heads, a base on which the plurality of heads is arrayed in a head array direction, a plurality of individual heatsinks respectively attached to the plurality of heads, and a common heatsink standing on the base, the common heatsink including a connector thermally connected to each of the plurality of individual heatsinks. The connector of the common heatsink is along the head array direction and is adjacent to each of the plurality of individual heatsinks in a direction perpendicular to the head array direction. 1. A head module comprising:a plurality of heads;a base on which the plurality of heads is arrayed in a head array direction;a plurality of individual heatsinks respectively attached to the plurality of heads; anda common heatsink standing on the base, the common heatsink including a connector thermally connected to each of the plurality of individual heatsinks,wherein the connector of the common heatsink is along the head array direction and is adjacent to each of the plurality of individual heatsinks in a direction perpendicular to the head array direction.2. The head module according to claim 1 , further comprising:a heat conductor having viscosity and thermally connecting the connector of the common heatsink and one of the plurality of individual heatsinks.3. The head module according to claim 2 ,wherein each of the plurality of heads includes a wiring mounting a drive integrated circuit,each of the plurality of individual heatsinks includes a main surface contacting the drive integrated circuit and a side surface bent from an end of the main surface, andthe heat conductor thermally connects the connector of the common heatsink and the side surface of one of the plurality of individual heatsinks.4. The head module according to claim 1 , further comprising:a heat conductor having elasticity and thermally connecting the connector of the common heatsink and one of the plurality of individual heatsinks.5. The head ...

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03-01-2019 дата публикации

LIQUID EJECTING APPARATUS AND LIQUID EJECTION METHOD

Номер: US20190001701A1
Автор: SUGAI Keigo
Принадлежит:

A liquid ejecting apparatus includes a liquid chamber that communicates with a nozzle, a communication flow path that communicates with the liquid chamber and that has a first opening into which a liquid flows, a discharge flow path that discharges the liquid and that has a second opening into which the liquid flows, a supply flow path capable of supplying the liquid to the communication flow path and the discharge flow path, and a first slide portion disposed between the supply flow path and the communication flow path and having a first through hole that enables the supply flow path to communicate with the communication flow path. The first slide portion, by sliding along the opening surface of the first opening, changes the position of the first through hole with respect to the communication flow path and changes the flow path resistance of the communication flow path. 1. A liquid ejecting apparatus comprising:a liquid chamber that communicates with a nozzle;a communication flow path that communicates with the liquid chamber and that has a first opening into which a liquid flows;a discharge flow path that discharges the liquid and that has a second opening into which the liquid flows;a supply flow path capable of supplying the liquid to the communication flow path and the discharge flow path; anda first slide portion disposed between the supply flow path and the communication flow path and having a first through hole that enables the supply flow path to communicate with the communication flow path, whereinthe first slide portion, by sliding along an opening surface of the first opening, changes a position of the first through hole with respect to the communication flow path and changes a flow path resistance of the communication flow path.2. The liquid ejecting apparatus according to claim 1 , whereinthe first slide portion, by changing the position of the first through hole between the communication flow path and the discharge flow path, changes the flow path ...

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01-01-2015 дата публикации

Grafted polymers as oleophobic low adhesion anti-wetting coatings for printhead applications

Номер: US20150002581A1
Принадлежит: Xerox Corp

An inkjet printhead includes a front face having a polymer coating, the polymer coating including an oleophobic grafted polymer having a crosslinked fluoroelastomer and a perfluorinated polyether grafted to the crosslinked fluoroelastomer.

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13-01-2022 дата публикации

Applying mold chase structure to end portion of fluid ejection die

Номер: US20220009231A1
Принадлежит: Hewlett Packard Development Co LP

A method includes applying a mold chase to a fluid ejection die to at least partially define at least one cavity. The mold chase includes a feature to contact a fluid ejection portion of the fluid ejection die, and at least one structure separate from the feature to contact a first end portion adjacent a first end of the fluid ejection die. The method includes filling the at least one cavity with a mold compound to produce a molded carrier for the fluid ejection die.

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11-01-2018 дата публикации

FLOW PATH STRUCTURE, LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, AND MANUFACTURING METHOD OF FLOW PATH STRUCTURE

Номер: US20180009220A1
Принадлежит:

A flow path structure which forms a flow path of liquid, includes: a light absorbing member (first substrate) having absorbing properties with respect to laser light; a light transmitting member (second substrate) which is joined to the light absorbing member and has transmitting properties with respect to the laser light; a first flow path (flow path) which is surrounded by a welding interface between the light absorbing member and the light transmitting member; and a second flow path which is formed in a flow path pipe (flow path pipe) which protrudes from a front surface opposite of the welding interface in the light transmitting member, and communicates with the first flow path, in which the flow path pipe is included in a region of the first flow path in a plan view from a direction orthogonal to the welding interface. 1. A flow path structure which forms a flow path of liquid , comprising:a first substrate;a second substrate joined to the first substrate; anda first flow path which is surrounded by a fixing surface on which the first substrate and the second substrate are fixed,wherein a second flow path which branches from the first flow path and in which the liquid flows in the direction intersecting with the fixing surface, is formed in one of the first substrate and the second substrate,wherein a projection portion which protrudes toward the second flow path at a branch point of the first flow path and the second flow path is formed in the other one of the first substrate and the second substrate,wherein the projection portion includes a wall surface on the upstream side and a wall surface on the downstream side in the first flow path, andwherein the wall surface on the upstream side of the projection portion has an inclined surface which is inclined so that the height of the projection portion increases toward the downstream side with respect to the direction of the flow in the first flow path.2. The flow path structure according to claim 1 ,wherein the ...

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11-01-2018 дата публикации

PRINTHEAD WITH PRINTER FLUID CHECK VALVE

Номер: US20180009222A1

In some examples, a printhead can include a main printer fluid line, a firing chamber in fluid communication with the main printer fluid line to receive printer fluid from the main printer fluid line, and a resistor positioned in the firing chamber. The resistor can, for example, receive an electronic current to cause the resistor to heat up and eject printer fluid droplets from the printhead. The printhead can further include a photolithographically fabricated check valve positioned in the firing chamber. The check valve can, for example, be openable to allow filling of the firing chamber with printer fluid and closeable to at least partially seal the main printer fluid line from printer fluid blowback caused by the resistor. 1. A printhead comprising:a main printer fluid line;a firing chamber in fluid communication with the main printer fluid line to receive printer fluid from the main printer fluid line;a resistor positioned in the firing chamber, the resistor to receive an electronic current to cause the resistor to heat up and eject printer fluid droplets from the printhead; anda photolithographically fabricated check valve positioned in the firing chamber, wherein the check valve is openable to allow filling of the firing chamber with printer fluid and closeable to at least partially seal the main printer fluid line from printer fluid blowback caused by the resistor.2. The printhead of claim 1 , wherein the check valve includes a check valve element in the form of a cylindrical valve that is slidable within the firing chamber.3. The printhead of claim 1 ,wherein the check valve includes a check valve element in the form of a head portion and a spring portion, andwherein the head portion is to at least partially seal the main printer fluid line and the spring portion is to bias the head portion to fully open a fluid path between the main printer fluid line and the firing chamber.4. The printhead of claim 1 ,wherein the check valve includes a check valve element ...

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11-01-2018 дата публикации

INK JET APPARATUS

Номер: US20180009248A1
Принадлежит:

An ink jet apparatus includes a head, a circuit substrate, a cover frame, a heat sink, a fan, and a wall section. The cover frame supports the circuit substrate that has a drive circuit that drives the head inside of the cover frame and has a through hole. The heat sink that dissipates heat generated in the circuit substrate is disposed inside of the cover frame and has a part that is in direct or indirect contact with the circuit substrate. The fan generates air flow and is arranged such that the fan and the heat sink face to each other via the through hole. The wall section is disposed inside of the cover frame such that the air flow is not directly blown against the drive circuit and the air flow having changed a direction after blown against the heat sink is not blown against the drive circuit. 1. An ink jet apparatus , comprising:a head configured to discharge liquid;a circuit substrate that has a drive circuit that is configured to drive the head;a cover frame supporting the circuit substrate inside of the cover frame, the cover frame having a through hole;a heat sink which has a part that is in direct or indirect contact with the circuit substrate and is configured to dissipate heat generated in the circuit substrate, the heat sink being disposed inside of the cover frame;a fan configured to generate air flow to cool the heat sink, the fan being arranged such that the fan and the heat sink face to each other via the through hole; anda wall section disposed inside of the cover frame such that the air flow is not directly blown against the drive circuit and such that the air flow having changed a direction after blown against the heat sink is not blown against the drive circuit.2. The ink jet apparatus according to claim 1 , whereinthe wall section has one end portion that contacts the heat sink and an opposite end portion that contacts the cover frame, and the opposite end portion is opposite the one end portion.3. The ink jet apparatus according to claim 1 , ...

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10-01-2019 дата публикации

INKJET PRINTING APPARATUS AND CONTROL METHOD OF THE SAME

Номер: US20190009565A1
Принадлежит:

An inkjet printing apparatus includes a tank in which ink is contained; a print head for ejecting ink supplied from the tank to perform print operation; a supply flow path for supplying ink from the tank to the print head; a collection flow path for collecting ink from the print head to the tank; and a pump provided in the supply flow path or the collection flow path. The pump is driven, during print operation, at a first speed to circulate ink within a circulation path including the tank, the supply flow path, the print head, and the collection flow path, and the pump is driven, from a start of the ink circulation until a lapse of predetermined time period, at a second speed which is faster than the first speed. 1. An inkjet printing apparatus comprising:a tank in which ink is contained;a print head for ejecting ink supplied from the tank to perform print operation;a supply flow path for supplying ink from the tank to the print head;a collection flow path for collecting ink from the print head to the tank; anda pump provided in the supply flow path or the collection flow path, whereinthe pump is driven, during print operation, at a first speed to circulate ink within a circulation path including the tank, the supply flow path, the print head, and the collection flow path, andthe pump is driven, from a start of the ink circulation until a lapse of predetermined time period, at a second speed which is faster than the first speed.2. The inkjet printing apparatus according to claim 1 , whereinthe pump includes a supply pump provided in the supply flow path and a collection pump provided in the collection flow path, andthe collection pump is driven at the second speed until the lapse of predetermined time period.3. The inkjet printing apparatus according to claim 1 , whereinthe print head includes an ejection opening for ejecting ink and a pressure chamber which is communicated with the ejection opening and which is filled with ink to be ejected from the ejection ...

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09-01-2020 дата публикации

DEVICE AND METHOD FOR THE DEPOSITION OF PARTICLES ON A TARGET

Номер: US20200009877A1
Принадлежит:

A device for deposition of particles on a target from a transparent slide having a film formed by a fluid containing suspended particles, by locally exciting the film using a laser, includes means for observing the local excitation region. The observation means comprise a sensor and a light source, the optical axes of which are substantially shared in a space between an optical splitter and that the film. The optical beam of the imaging system and the optical beam of the laser are coaxially arranged in the space between the controlled optical deflection means and the film. The device comprises a first focusing optical unit arranged between the controlled optical deflection means and the film. The device comprises a second image-combining optical unit positioned between the sensor and the splitter, the sensor being positioned in the focal plane of the second optical unit. 115.-. (canceled)16. A system for depositing particles on a target , comprising:a transparent slide for supporting a fluid film containing the particles in suspension;a laser configured to emit a laser beam onto a localized area of the fluid film;a deflection device configured to selectively deflect the laser beam onto selected localized areas of the fluid film;an imaging system configured to acquire images of the localized areas of the fluid film, the imaging system including a sensor and a light source, an optical axis of the sensor and an optical axis of the light source being at least substantially aligned with one another in a region between an optical splitter and the fluid film;a first focusing optical unit disposed between the deflection device and the fluid film; anda second image-combining optical unit disposed between the sensor of the imaging system and the optical splitter, the sensor being located in the focal plane of the second optical unit; andwherein the optical beam of an imaging system and the optical beam of the laser are coaxial in a region between the deflection device and the ...

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03-02-2022 дата публикации

Apparatus for dispensing droplet and method for dispensing droplet

Номер: US20220032611A1
Принадлежит: Semes Co Ltd

An apparatus for dispensing droplet may include a droplet discharging member, a stage and a control member. The droplet discharging member may include a plurality of nozzles arranged in a first direction by a constant interval. The stage may receive a substrate including a plurality of regions for forming a plurality of pixels of a same size disposed in the first direction and a second direction substantially perpendicular to the first direction. The control member may control the droplet discharging member such that amounts of droplets may be substantially identical in the regions of the substrate for the pixels if the numbers of the nozzles of the droplet discharging member with respect to sides of the regions of the substrate for the pixels are different in the first direction. The control member may identify patterns of discharged droplets in the regions of the substrate for the pixels and adjusts the amounts of the droplets form the nozzles of the droplet discharging member by controlling operation of each of nozzles of the droplet discharging member.

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19-01-2017 дата публикации

LIQUID EJECTION HEAD AND METHOD FOR MANUFACTURING THE SAME

Номер: US20170015100A1
Автор: Imamura Isao
Принадлежит:

A first sealant for sealing a region under an electrical connection portion and a second sealant for sealing a region on the electrical connection portion are used as sealants for the electrical connection portion for connecting an electric wiring member to an ejection energy generation element of a liquid ejection head, these sealants contain the same base agent and curing agent, and the linear expansion coefficients of the first sealant and the second sealant after curing are adjusted so as to become in a predetermined range. 1. A liquid ejection head comprising:a recording element substrate, which has a flow passage member including an ejection port for ejecting a liquid and a flow passage for supplying the liquid to the ejection port and a substrate having an ejection energy generation element for generating energy so as to eject the liquid from the ejection port;an electric wiring member for transmitting a signal so as to drive the ejection energy generation element;an electrical connection portion for electrically connecting the recording element substrate to the electric wiring member;a first sealant for sealing a region under the electrical connection portion; and a second sealant for sealing a region on the electrical connection portion,wherein the first sealant and the second sealant contain the same base agent and curing agent, and the ratio (α1/α2) of the linear expansion coefficient (α1) of the first sealant to the linear expansion coefficient (α2) of the second sealant is 1.2 to 1.0.2. The liquid ejection head according to claim 1 , wherein the ratio (α1/α2) is specified as 1.2 to 1.0 by making the first sealant and the second sealant have the same amount of the same type of filler and making the average particle diameter of the filler included in the first sealant larger than or equal to the average particle diameter of the filler included in the second sealant.3. The liquid ejection head according to claim 1 , wherein the ratio (α1/α2) is specified ...

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18-01-2018 дата публикации

Liquid discharge head and recording device

Номер: US20180015753A1
Автор: Kenko Gejima
Принадлежит: Kyocera Corp

A liquid discharge head is provided in which heat of a heat sink is less apt to transfer to a head body. The liquid discharge head includes a head body having a discharge hole for discharging a liquid therethrough, a driver IC configured to control driving of the head body, a casing which is disposed on the head body and has openings on a side surface of the casing, and a heat sink which is disposed on the openings of the casing and configured to dissipate heat generated in the driver IC, and a thermal insulation part disposed between the heat sink and the head body. This makes it possible to reduce the likelihood that the heat of the heat sink transfers to the head body.

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17-01-2019 дата публикации

PRINTING WITH AN EMULSION

Номер: US20190016133A1

In an example implementation, a method of printing with an emulsion, includes generating an emulsion of non-water based fluid and water based fluid on a printhead, and ejecting the emulsion through a printhead nozzle. 1. A method of printing with an emulsion , comprising:generating an emulsion of non-water based fluid and water based fluid on a printhead; andejecting the emulsion through a printhead nozzle.2. A method as in claim 1 , wherein generating an emulsion comprises creating a negative pressure in a fluid ejection chamber to pull water based fluid from a first channel and non-water based fluid from a second channel into a common channel leading to the fluid ejection chamber.3. A method as in claim 2 , further comprising:increasing a fluid flow speed within the common channel by providing a constricted section in the common channel.4. A method as in claim 1 , wherein generating an emulsion comprises causing the non-water based fluid to flow through a microfluidic channel that crosses over a water based fluid slot on the printhead.5. A method as in claim 1 , wherein generating an emulsion comprises:causing the water based fluid to flow through a first microfluidic channel toward a drop ejector; andcausing the non-water based fluid to flow through a second microfluidic channel and mix with the water based fluid at a junction of the first and second microfluidic channels.6. A method as in claim 5 , wherein generating an emulsion further comprises controlling a geometry of the junction formed by the first and second microfluidic channels.7. A device for printing with an emulsion claim 5 , comprising:a first microfluidic channel to provide a first fluid;a second microfluidic channel to provide a second fluid, the first and second fluids being immiscible fluids;a negative pressure source to pull the first fluid and the second fluid into a common microfluidic channel to generate an emulsion of the first and second fluids; and,a fluid drop ejector in communication ...

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17-01-2019 дата публикации

INK JET RECORDING METHOD AND INK JET RECORDING APPARATUS

Номер: US20190016136A1
Принадлежит:

Provided is an ink jet recording method capable of suppressing deterioration in an ejection property when voltage control of a recording head is performed. The ink jet recording method includes using an ink jet recording apparatus having a recording head equipped with a heater, a first protection layer and a second protection layer made of a metal material, and a unit of applying a voltage with the second protection layer as a cathode and an ink-mediated conduction site as an anode and ejecting the ink from the recording head to record an image on a recording medium, wherein the ink is an aqueous ink containing a component having an anionic group and a soluble metal ion having a standard electrode potential of more than 0 V. 1. An ink jet recording method comprising: [ a heater placed in an ink flow path communicated with an ejection orifice,', 'a first protection layer placed at a position corresponding to the heater and blocking a contact between the heater and an ink in the ink flow path, and', 'a second protection layer placed at a position corresponding to the heater and to be brought into contact with the ink and made of a metal material; and, 'a recording head equipped with'}, 'a unit of applying a voltage with the second protection layer as a cathode and an ink-mediated conduction site as an anode; and, 'using an ink jet recording apparatus having'}ejecting the ink from the recording head to record an image on a recording medium,wherein the ink comprises an aqueous ink containing a component having an anionic group and a soluble metal ion having a standard electrode potential of more than 0 V and having a content (ppm) of the metal ion of 0.1 ppm or more to 15.0 ppm or less based on a total mass of the ink.2. The ink jet recording method according to claim 1 , wherein the metal ion comprises at least one of a copper ion and a silver ion.3. The ink jet recording method according to claim 2 , wherein a content (ppm) of at least one of the copper ion and the ...

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25-01-2018 дата публикации

Head module and liquid jetting apparatus including the same

Номер: US20180022085A1
Автор: Hirotoshi Ishizaki
Принадлежит: Brother Industries Ltd

There is provided a head module including: a head which has an inlet, a plurality of nozzles, and a plurality of driving elements, and in which the nozzles are aligned in rows in a longitudinal direction of a nozzle surface orthogonal to a attaching/detaching direction of the head module; a plurality of driver ICs; a heat spreader; a flexible substrate; and a rigid substrate. In the attaching/detaching direction, the driver ICs are arranged between the head and the heat spreader; the rigid substrate and the head are arranged side by side in the attaching/detaching direction; the rigid substrate and the heat spreader are arranged side by side in a short direction of the nozzle surface; and the rigid substrate has a thickness along the short direction of the nozzle surface.

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25-01-2018 дата публикации

LIQUID DISCHARGE HEAD USING DISCHARGE ENERGY GENERATION ELEMENTS

Номер: US20180022108A1
Принадлежит:

A supporting member includes a first supporting portion disposed on a first and second recording element substrate side, and a second supporting portion disposed on a side opposite to the first and second recording element substrate side with respect to the first supporting portion, the first supporting portion includes a first individual flow path for supplying liquid to a first recording element substrate, and a second individual flow path for supplying liquid to a second recording element substrate, and the second supporting portion includes a common flow path for supplying liquid to the first and second individual flow paths. 1. A liquid discharge head comprising:first and second recording element substrates, each including discharge ports for discharging liquid and energy generation elements for generating energy for use in discharging liquid, and arranged along a longitudinal direction of the liquid discharge head; anda supporting member configured to support the first and second recording element substrates,wherein the supporting member includes a first supporting portion, which is a portion on a side, in a thickness direction of the supporting member, where the first and second recording element substrates are provided, and a second supporting portion, which is a portion on an opposite side of the first supporting portion,wherein the first supporting portion includes a first individual flow path for supplying liquid to the first recording element substrate, and a second individual flow path for supplying liquid to the second recording element substrate, andwherein the second supporting portion includes a common flow path for supplying liquid to the first and second individual flow paths.2. The liquid discharge head according to claim 1 , wherein a thickness of the first supporting portion is smaller than a thickness of the second supporting portion.3. The liquid discharge head according to claim 1 , wherein the first and second recording element substrates ...

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10-02-2022 дата публикации

Inkjet printing device and printing method using the same

Номер: US20220040978A1
Принадлежит: Samsung Display Co Ltd

An inkjet printing and an inkjet printing method are provided. The inkjet printing device includes a stage comprising a substrate mounting part configured to receive a target substrate mounted thereon, a print head unit located above the stage and configured to spray an ink including a plurality of particles, and a suction device located at a side of the substrate mounting part and configured to generate negative pressure thereon.

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24-01-2019 дата публикации

Ink jet head and ink jet printer

Номер: US20190023006A1
Автор: Hiroyuki Watanabe
Принадлежит: Toshiba TEC Corp

An ink jet head includes a pressure chamber, a nozzle plate including a nozzle, an actuator configured to cause an ink to be discharged from the pressure chamber via the nozzle, and a drive circuit configured to supply to the actuator an expansion signal, having a pulse width equal to a natural vibration cycle of the ink in the pressure chamber, that expands the pressure chamber to an expanded state from an initial state, a release signal, having a pulse width longer than the natural vibration cycle and shorter than three times the natural vibration cycle, that returns the pressure chamber to the initial state from the expanded state, and a contraction signal, having a pulse width longer than the natural vibration cycle and shorter than three times the natural vibration cycle, that contracts the pressure chamber to a contracted state from the initial state.

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24-01-2019 дата публикации

Carriage and recording apparatus

Номер: US20190023009A1
Принадлежит: Seiko Epson Corp

Provided is a carriage including a head including a nozzle surface, the nozzle surface including nozzles configured to eject ink droplets, and a plasma actuator configured to apply an air current flowing along the nozzle surface.

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28-01-2021 дата публикации

Liquid discharge apparatus

Номер: US20210023847A1
Принадлежит: Ricoh Co Ltd

A liquid discharge apparatus includes a head configured to discharge a liquid, a circulation passage through which a temperature-controlled liquid circulates, at least two heat generation portions different in heat generation amount from each other, and a cooler configured to cool the temperature-controlled liquid. The circulation passage is coupled to the head. The at least two heat generation portions are thermally coupled with the circulation passage in an ascending order of heat generation amount and downstream from the cooler in a direction of flow in the circulation passage.

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31-01-2019 дата публикации

METHOD FOR FABRICATING FLUID EJECTION DEVICE

Номер: US20190030889A1
Принадлежит:

Disclosed is a method for fabricating a fluid ejection device. The method includes forming a drive circuitry layer on a substrate. The method further includes fabricating at least one fluid ejection element on the substrate. Furthermore, the method includes forming at least one slot within a top portion of the substrate, and forming at least one fluid feed trench within a bottom portion of the substrate. Each fluid feed trench of the at least one fluid feed trench is in fluid communication with one or more slots of the at least one slot. Additionally, the method includes laminating a flow feature layer and a nozzle plate over the substrate having the at least one slot and the at least one fluid feed trench formed therewithin. Further disclosed is a fluid ejection device fabricated using the aforementioned method. 1. A method for fabricating a fluid ejection device , the method comprising:forming a drive circuitry layer on a substrate;fabricating at least one fluid ejection element on the substrate, each fluid ejection element of the at least one fluid ejection element being electrically coupled to the drive circuitry layer;forming at least one slot within a top portion of the substrate;forming at least one fluid feed trench within a bottom portion of the substrate, wherein each fluid feed trench of the at least one fluid feed trench is in fluid communication with one or more slots of the at least one slot; andlaminating a flow feature layer and a nozzle plate directly onto the top portion of the substrate having the at least one slot and the at least one fluid feed trench formed therewithin.2. The method of claim 1 , further comprising grinding the substrate from the bottom portion of the substrate up to a predetermined height prior to forming the at least one slot within the top portion of the substrate.3. The method of claim 1 , further comprising depositing a layer of an etch-stop material over the top portion of the substrate while filling the at least one slot ...

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31-01-2019 дата публикации

LIQUID-CONSUMPTION APPARATUS HAVING SEMIPERMEABLE MEMBRANE POSITIONED IN STORAGE CHAMBER OF TANK AT POSITION AVOIDING WETTING

Номер: US20190030906A1
Автор: Hayashi Masahiro
Принадлежит: BROTHER KOGYO KABUSHIKI KAISHA

A liquid consumption device includes a cartridge, a tank and a consumption portion. The cartridge includes a first storage chamber. The tank includes a second storage chamber and a semipermeable membrane. The semipermeable membrane covers the communication port. The semipermeable membrane is configured to block a liquid. The semipermeable membrane is positioned above a level of the liquid stored in the first storage chamber in a state where the level of the liquid stored in the first storage chamber becomes equal to the level of the liquid stored in the second storage chamber because of a flow of the liquid from the first storage chamber to the second storage chamber due to water head difference as a result of the connection of the cartridge to the tank. The first storage chamber of the cartridge to connected to the tank stores therein a maximum amount of liquid. 1. A liquid consumption device comprising: a first storage chamber configured to store therein a liquid, and', 'a first air communicating portion to allow the first storage chamber to communicate with an atmosphere;, 'a cartridge comprising a second storage chamber configured to store therein the liquid flowing from the first storage chamber, at least a part of the second storage chamber being defined by a wall in which a communication port is formed;', 'a second air communicating portion to allow the second storage chamber to communicate with the atmosphere through the communication port; and', 'a semipermeable membrane covering the communication port and configured to block the liquid and allow the air to pass therethrough; and, 'a tank to which the cartridge is connectable, the tank comprisinga consumption portion configured to consume the liquid supplied from the second storage chamber;wherein the semipermeable membrane is positioned above a level of the liquid stored in the first storage chamber in a state where the level of the liquid stored in the first storage chamber becomes equal to the level of ...

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30-01-2020 дата публикации

ELECTROMECHANICAL TRANSDUCER ELEMENT, LIQUID DISCHARGE HEAD, LIQUID DISCHARGE APPARATUS

Номер: US20200031113A1
Принадлежит:

An electromechanical transducer element includes an electromechanical transducer film including a complex oxide that has a perovskite structure containing at least Pb, Zr and Ti; a pair of electrodes disposed to sandwich the electromechanical transducer film; and an insulating protective film covering the electromechanical transducer film and the pair of electrodes. Pb content of the electromechanical transducer film is uniform in a film thickness direction of the electromechanical transducer film, and a density of leak current measured between the pair of electrodes is 4.2×10A/cmor less in an environment in which a water vapor pressure is 300 kPa. 1. An electromechanical transducer element comprising:an electromechanical transducer film including a complex oxide that has a perovskite structure containing at least Pb, Zr and Ti;a pair of electrodes disposed to sandwich the electromechanical transducer film; andan insulating protective film covering the electromechanical transducer film and the pair of electrodes,wherein Pb content of the electromechanical transducer film is uniform in a film thickness direction of the electromechanical transducer film, and{'sup': −6', '2, 'a density of leak current measured between the pair of electrodes is 4.2×10A/cmor less in an environment in which a water vapor pressure is 300 kPa.'}2. The electromechanical transducer element according to claim 1 ,whereina relation of Lb/La≥0.30 is satisfied,wherein La represents a value of the density of leak current measured between the pair of electrodes, andLb represents a value of a density of bulk-leak current flowing in the electromechanical transducer film.3. The electromechanical transducer element according to claim 1 ,wherein the electromechanical transducer element has a dielectric strength of 100V or more.4. The electromechanical transducer element according to claim 1 ,wherein an average Pb content of the electromechanical transducer film is from 100% to 110% of Zr and Ti content ...

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04-02-2021 дата публикации

FLUID EJECTOR

Номер: US20210031221A1
Автор: MACE Daniel Richard
Принадлежит:

A fluid ejector for ejecting discrete volumes of ejectant includes a body with opposing first and second surfaces. One or more nozzles are defined as conduits extending through the body between the surfaces to connect first and second orifices at the first and second surfaces respectively. The fluid ejector further includes a gas supply means having a gas outlet and an ejectant supply means. The ejectant supply means supplies the ejectant to the nozzles at a pressure above ambient via their supply orifices. The supply orifice is defined in a conduit's side or is the second orifice. Relative movement of the gas supply means and body exposes first orifices to the gas outlet allowing the gas supply means to supply gas at a pressure above ambient, wherein a pressure difference thereby created between the first and second orifices causes ejection of the ejectant from the nozzles through the second orifices. 149.-. (canceled)50. A fluid ejector for ejecting discrete volumes of ejectant , the fluid ejector comprising:a body having opposing first and second surfaces and at least one nozzle defined between the first and second surfaces, each of the at least one nozzle defined by a conduit extending through the body to connect a first orifice defined at the first surface of the body and a second orifice defined at the second surface of the body;an ejectant supply device for supplying ejectant to each of one or more of the at least one nozzle via a supply orifice of the nozzle, wherein the supply orifice is the second orifice or is defined in a side of the conduit defining the nozzle; anda gas supply device for supplying a gas to the one or more nozzles through the one or more first orifices, the gas supply device defining a gas outlet, the gas supply device and the body movable relative to each other, the ejectant supply device is operable to supply the ejectant to each of the one or more nozzles at a pressure above ambient pressure, and', 'relative movement of the gas supply ...

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09-02-2017 дата публикации

Methods and apparatus to prime a printhead assembly

Номер: US20170036453A1
Автор: Randal J. MORRISON
Принадлежит: Hewlett Packard Development Co LP

Methods and apparatus to prime a printhead assembly are disclosed. An example method includes drawing ink into a printhead assembly by operating a pump in fluid communication with the printhead assembly for a first period of time at a first speed. An amount of ink drawn into the printhead assembly during the first period is to be sufficient to cover nozzles of a die at an outlet of the printhead assembly. The example method further includes evacuating air within the printhead assembly by operating the pump for a second period of time after the first period of time at a second speed greater than the first speed.

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30-01-2020 дата публикации

PIEZOELECTRIC ELEMENT, PIEZOELECTRIC ELEMENT APPLICATION DEVICE, AND METHOD OF MANUFACTURING PIEZOELECTRIC ELEMENT

Номер: US20200035905A1
Принадлежит:

A piezoelectric element includes a piezoelectric layer formed as a stacked structure of first, second, and third piezoelectric films. The first piezoelectric film is formed on a first electrode. The second piezoelectric film is formed on the first piezoelectric film. The third piezoelectric film is formed on the second piezoelectric film. Each of the first, second, and third piezoelectric films includes potassium, sodium, and niobium. A second electrode is formed on the piezoelectric layer. A concentration of sodium in the first piezoelectric film is greater than a concentration of sodium in the second piezoelectric film. The concentration of sodium in the second piezoelectric film is greater than a concentration of sodium in the third piezoelectric film. 1. A piezoelectric element comprising:a first electrode;a piezoelectric layer formed of a first piezoelectric film formed on the first electrode;a second piezoelectric film formed on the first piezoelectric film, and a third piezoelectric film formed on the second piezoelectric film, each of the first, second, and third piezoelectric films including potassium, sodium, and niobium; anda second electrode formed on the piezoelectric layer,wherein the piezoelectric layer is a stacked structure of the first, second, and third piezoelectric films, anda concentration of sodium in the first piezoelectric film is greater than a concentration of sodium in the second piezoelectric film, and the concentration of sodium in the second piezoelectric film is greater than a concentration of sodium in the third piezoelectric film.2. The piezoelectric element according to claim 1 ,wherein the first piezoelectric film formed on the first electrode is provided without a titanium film interposed therebetween.3. A piezoelectric element application device comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the piezoelectric element according to .'}4. A piezoelectric element application device comprising:{'claim-ref': {'@idref': ...

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12-02-2015 дата публикации

Vent through a printhead support structure

Номер: US20150042730A1
Принадлежит: Hewlett Packard Development Co LP

In one example, a structure for supporting a printhead includes: a substrate having a first side and a second side: an inlet tower through which liquid may be introduced into the structure; an opening through the substrate near the inlet tower; and an air channel along the substrate connecting the opening in the substrate to the atmosphere.

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24-02-2022 дата публикации

Color filter and method for manufacturing color filter

Номер: US20220055376A1
Принадлежит: Semes Co Ltd

A color filter is provided. The color filter includes a substrate, a bank formed on a substrate to partition a plurality of pixel units into each other, a plurality of first structures formed on the pixel unit, and having a width narrower than a width of the pixel unit, and a height lower than a height of the bank, and an ink film filled in the pixel unit and having a height higher than the height of the first structures.

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06-02-2020 дата публикации

Liquid discharge head, head unit, apparatus for discharging liquid, and liquid discharging method

Номер: US20200039217A1
Принадлежит: Ricoh Co Ltd

A liquid discharge head for controlling discharging of liquid, the liquid discharge head including a valve body configured to be movable, and to be pressed towards a discharge port from which the liquid is discharged; and a recessed portion provided in the valve body at a position facing the discharge port.

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18-02-2021 дата публикации

Printhead with printer fluid check valve

Номер: US20210046757A1
Принадлежит: Hewlett Packard Development Co LP

In some examples, a printhead can include a main printer fluid line, a firing chamber in fluid communication with the main printer fluid line to receive printer fluid from the main printer fluid line, and a resistor positioned in the firing chamber. The resistor can, for example, receive an electronic current to cause the resistor to heat up and eject printer fluid droplets from the printhead. The printhead can further include a photolithographically fabricated check valve positioned in the firing chamber. The check valve can, for example, be openable to allow filling of the firing chamber with printer fluid and closeable to at least partially seal the main printer fluid line from printer fluid blowback caused by the resistor.

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18-02-2021 дата публикации

PRINTING UNIT WITH REPLACEABLE PRINTHEAD

Номер: US20210046773A1
Принадлежит:

A printing unit includes: a sleeve and a print module received in the sleeve, the print module being slidably removable, in a first direction, from the sleeve. The print module includes a supply module and a replaceable printhead. The printhead is slidably removable, in a second direction, from the supply module, the first and second directions being non-parallel. 2. The printing unit of claim 1 , wherein a lower part of the sleeve comprises a nest for datuming the print module.3. The printing unit of claim 2 , wherein the printhead is removable from the supply module only when the print module is disengaged from the nest.4. The printing unit of claim 1 , wherein the supply module comprises one or more locating pins extending parallel with the second direction claim 1 , each locating pin being receivable in a respective alignment opening of the printhead.5. The printing unit of claim 4 , wherein the locating pins extend from a clamp plate claim 4 , the clamp plate comprising a longitudinal row of electrical contacts for supplying the power and data to the printhead.6. The printing unit of claim 5 , wherein supply module further comprises a movable clamp for clamping the printhead against the clamp plate.7. The printing unit of claim 1 , wherein the first and second directions are perpendicular to each other.8. The printing unit of claim 1 , wherein the first direction is perpendicular to a media feed direction.9. The printing unit of claim 1 , wherein each supply module comprises a body housing electronic circuitry for supplying power and data to the printhead.10. The printing unit of claim 9 , wherein the supply module further comprises an ink inlet module and an ink outlet module positioned on opposite external sidewalls of the body and flanking the body claim 9 , each of the ink inlet and ink outlet modules having a respective ink coupling engaged with complementary inlet and outlet couplings of the printhead.11. The printing unit of claim 10 , wherein the ink ...

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16-02-2017 дата публикации

ENHANCING TEMPERATURE DISTRIBUTION UNIFORMITY ACROSS A PRINTER DIE

Номер: US20170043574A1

According to an example, in a method for enhancing temperature distribution uniformity across a printer die, in which the printer die includes a plurality of drop generators arranged in a plurality of columns, a warming map that identifies the drop generators of the plurality of drop generators that are to be supplied with warming pulses to enhance temperature distribution uniformity across the printer die may be accessed. The warming map may identify a non-uniform distribution of the drop generators across a column of the plurality of columns. In addition, the warming map may be implemented to supply the drop generators identified in the warming map as the drop generators that are to receive the warming pulses. 1. A method for enhancing temperature distribution uniformity across a printer die , wherein the printer die comprises a plurality of drop generators arranged in a plurality of columns , said method comprising:accessing a warming map that identifies the drop generators of the plurality of drop generators that are to be supplied with warming pulses to enhance temperature distribution uniformity across the printer die, wherein the warming map identifies a non-uniform distribution of the drop generators across a column of the plurality of columns; andimplementing the warming map to supply the drop generators identified in the warming map as the drop generators that are to receive the warming pulses.2. The method according to claim 1 , wherein the printer die comprises a first end claim 1 , a second end claim 1 , and a middle section claim 1 , and wherein the non-uniform distribution of the drop generators includes a larger number of the drop generators near the first end and the second end as compared with the middle section.3. The method according to claim 2 , wherein the non-uniform distribution of the drop generators includes a distribution of the drop generators that includes only the drop generators located at the first end and the second end.4. The method ...

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15-02-2018 дата публикации

INKJET PRINTHEAD DEVICE, FLUID EJECTION DEVICE, AND METHOD THEREOF

Номер: US20180043686A1

An inkjet printhead device, fluid ejection device and method thereof are disclosed. The fluid ejection device includes a fluid supply chamber to store fluid, an ejection chamber including a nozzle and a corresponding ejection member to selectively eject the fluid through the nozzle, and a channel to establish fluid communication between the fluid supply chamber and the ejection chamber. The fluid ejection device also includes a pressure sensor unit having a sensor plate to output a voltage value corresponding to a cross-sectional area of an amount of fluid in the at least ejection chamber. 1. A fluid ejection device , comprising: a diameter of a nozzle in a test ejection chamber is greater than a diameter of a nozzle in a non-test ejection chamber; and', 'the test ejection chamber comprises a pressure sensor plate., 'a plurality of ejection chambers comprising nozzles and corresponding ejection members to selectively eject a fluid through the respective nozzles by forming a vapor bubble in an ejection chamber which forces a fluid drop out the corresponding nozzle, wherein2. The fluid ejection device of claim 1 , wherein the pressure sensor plate outputs a voltage proportional to a change in back pressure.3. The fluid ejection device of claim 1 , wherein pressure sensor plates are located just in test chambers.4. The fluid ejection device of claim 1 , further comprising a refill determination module to determine an amount of time to refill at least one ejection chamber.5. The fluid ejection device of claim 4 , further comprising a count determination module to determine a supply condition based on an output from the refill determination module.6. The fluid ejection device of claim 5 , wherein the supply condition is a pre-exhaustion condition.7. A method for detecting a pre-exhaustion condition of an ink reservoir associated with a fluidic ejection device claim 5 , the method comprising:measuring at least one of: a firing chamber pressure and a firing chamber refill ...

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26-02-2015 дата публикации

PIEZOELECTRIC CERAMIC, METHOD FOR MANUFACTURING PIEZOELECTRIC CERAMIC, PIEZOELECTRIC ELEMENT, AND ELECTRONIC DEVICE

Номер: US20150053885A1
Принадлежит: CANON KABUSHIKI KAISHA

A piezoelectric ceramic contains a main component, Mn as a first auxiliary component, and a second auxiliary component containing at least one element selected from the group consisting of Cu, B, and Si. The main component contains a perovskite metal oxide having the following general formula (1): 1. A piezoelectric ceramic , comprising: a main component containing a perovskite metal oxide having the following general formula (1); Mn as a first auxiliary component; and a second auxiliary component containing at least one element selected from the group consisting of Cu , B , and Si ,{'br': None, 'sub': 1-x', 'x', 'a', '1-y', 'y', '3, 'i': ≦x≦', '≦y≦, '(BaCa)(TiZr)O(0.1000.145,0.0100.039)\u2003\u2003(1)'}wherein the amount b (mol) of Mn per mole of the metal oxide is in the range of 0.0048≦b≦0.0400, the second auxiliary component content on a metal basis is 0.001 parts by weight or more and 4.000 parts by weight or less per 100 parts by weight of the metal oxide, and the value a of the general formula (1) is in the range of 0.9925+b≦a≦1.0025+b.2. The piezoelectric ceramic according to claim 1 , wherein the average equivalent circular diameter of a plurality of crystal grains of the piezoelectric ceramic is 1 μm or more and 10 μm or less claim 1 , and crystal grains having an equivalent circular diameter of 25 μm or less constitute 99 percent by number or more of the total crystal grains.3. The piezoelectric ceramic according to claim 1 , wherein the piezoelectric ceramic has a relative density of 90% or more and 100% or less.4. A method for manufacturing the piezoelectric ceramic according to claim 1 , comprising: sintering a compact containing Ba claim 1 , Ca claim 1 , Ti claim 1 , Zr claim 1 , Mn claim 1 , and at least one metallic element selected from the group consisting of Cu claim 1 , B claim 1 , and Si at a temperature of 1200° C. or less.5. A piezoelectric element claim 1 , comprising: a piezoelectric ceramic; a first electrode; and a second electrode claim ...

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23-02-2017 дата публикации

METHOD OF PRINTING

Номер: US20170050456A1
Принадлежит: OCE-TECHNOLOGIES B.V.

Disclosed is a method of printing having the steps of: providing a recording substrate having a water insoluble salt having a polyvalent cation; providing an aqueous ink composition having stably dispersed particles, the pH of the ink composition being between 2 and 5.5; printing the aqueous ink composition on the recording substrate. Optionally, the printing substrate is treated with a plasma prior to applying the ink composition. Optionally, the aqueous ink has a gelling agent, for instance, a water soluble salt of alginic acid. 1. A method of printing comprising the steps of:providing a recording substrate comprising a water insoluble salt comprising a polyvalent cation;providing an aqueous ink composition comprising stably dispersed particles, the pH of the ink composition being between 2 and 5.5;printing the aqueous ink composition on the recording substrate.2. The method according to claim 1 , comprising the additional step of:treating a first surface of the recording substrate with a plasma prior to printing the aqueous ink on the recording substrate, wherein the aqueous ink is printed on the first surface of the recording substrate.3. The method according to claim 2 , wherein the plasma is a nitrogen plasma.4. The method according to claim 2 , wherein the first surface of the recording substrate is treated with a plasma power of between 10 and 1000 Wmin/m.5. The method according to claim 1 , wherein the water insoluble salt comprises a polyvalent metal ion.6. The method according to claim 1 , wherein the stably dispersed particles in the aqueous ink composition comprise dispersed resin particles and/or dispersed colorant particles.7. The method according to claim 6 , wherein the dispersed colorant particles are selected from the group consisting of particles of water insoluble dyes claim 6 , water insoluble pigment particles and combinations thereof.8. The method according to claim 6 , wherein the dispersed resin particles comprise alkali swellable resin ...

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13-02-2020 дата публикации

Piezoelectric functional film, actuator, and ink-jet head

Номер: US20200052188A1

A piezoelectric functional film includes a base layer and a piezoelectric layer. The piezoelectric layer contains niobium-doped lead zirconate titanate. The base layer contains one of niobium-doped lead titanate, (niobium, lanthanum)-doped lead titanate, and (niobium, lanthanum, magnesium)-doped lead titanate.

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01-03-2018 дата публикации

Single jet recirculation in an inkjet print head

Номер: US20180056647A1
Принадлежит: Xerox Corp

An inkjet print head including a plurality of single jet elements. Each of the single jet elements includes an aperture configured to eject ink during a jetting event, and a channel for receiving ink, the channeling including a recirculation portion configured to receive ink during a non-jetting event. The print head also includes a first manifold structured to supply ink to the channel, and a second manifold structured to receive ink from the recirculation portion of the channel. The ink flows from the inlet portion to the second outlet portion during non-jetting through the second outlet portion.

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28-02-2019 дата публикации

LIQUID EJECTING APPARATUS AND METHOD OF DRIVING THE SAME

Номер: US20190061364A1
Принадлежит:

A liquid ejecting apparatus includes a liquid path comprising a filter and a liquid storing chamber for supplying liquid to a liquid ejecting head. The liquid storing chamber has an inlet, a bubble retention space disposed above the inlet, a bottom disposed below the bubble retention space, and a first outlet and a second outlet. (i) The first outlet is located on one side of an imaginary center line passing through the center of a projected area, and the second outlet is located on the other side of the imaginary center line. Alternatively, (ii) the first outlet and the second outlet are located outside a projected area defined by projecting the bubble retention space onto the bottom. 1. A liquid ejecting apparatus comprising:a filter disposed in a liquid path for supplying liquid to nozzles of a liquid ejecting head; and an inlet through which the liquid enters the liquid storing chamber;', 'a bubble retention space disposed above the inlet in the vertical direction;', 'a bottom disposed below the bubble retention space in the vertical direction; and', 'a first outlet and a second outlet through which the liquid exits the liquid storing chamber, wherein, 'a liquid storing chamber disposed downstream of the filter in the liquid path, the liquid storing chamber including (i) the first outlet is located on one side of an imaginary center line and the second outlet is located on the other side of the imaginary center line, as viewed in the vertical direction, the imaginary center line passing through a center of a projected area, the projected area being defined by projecting the bubble retention space onto the bottom in the vertical direction; and', '(ii) the first outlet and the second outlet are located outside a projected area, as viewed in the vertical direction, the projected area being defined by projecting the bubble retention space onto the bottom in the vertical direction., 'the liquid ejecting apparatus satisfies one of conditions (i) and (ii) below2. The ...

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17-03-2022 дата публикации

Liquid ejection apparatus and method of controlling liquid ejection apparatus

Номер: US20220080730A1
Принадлежит: Canon Inc

An object is to provide a liquid ejection apparatus and a method of controlling a liquid ejection apparatus capable of preventing bubbles generated by kogation removal from interfering with the kogation removal. To this end, in a long liquid ejection head with a liquid circulated therethough, a pressure chamber is pressurized and a voltage is applied to a heat applying portion and an electrode to perform kogation removing cleaning.

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11-03-2021 дата публикации

LIQUID EJECTION HEAD

Номер: US20210070044A1
Автор: SUGIURA Keita
Принадлежит: BROTHER KOGYO KABUSHIKI KAISHA

A liquid ejection head includes: head units arranged in a first direction; first individual heat dissipators each corresponding to one of the head units and disposed on a first side of the head unit in a second direction; and a first common heat dissipator disposed on the first side of the head units in the second direction. The first common heat dissipator extends in the first direction and shared among the head units. Each head unit includes: a unit body including an actuator; and a first driver integrated circuit disposed on the first side of the unit body in the second direction. Each of the first individual heat dissipators is disposed between the first driver integrated circuit and the first common heat dissipator of the head unit so as to be in thermal contact with the first driver integrated circuit and the first common heat dissipator. 2. The liquid ejection head according to claim 1 , wherein the plurality of nozzles are provided on the other of the two walls of the unit body claim 1 , andWherein the plurality of nozzles are not covered by the plurality of individual metal members.3. The liquid ejection head according to claim 1 , wherein a plurality of tube connectors respectively connecting a plurality of ink tanks are provided on the third wall.4. The liquid ejection head according to claim 1 , wherein an elastic member is interposed between the driver integrated circuit and the unit body.5. The liquid ejection head according to claim 4 , wherein the elastic member is formed of potting material or grease.6. The liquid ejection head according to claim 1 , wherein two driver integrated circuits each as the driver integrated circuit are respectively provided on two side faces of the corresponding one of the plurality of head units in the second direction claim 1 , the two side faces being opposite to each other in the second direction claim 1 , each of the two side faces extending in a longitudinal direction as the first direction claim 1 , andwherein each ...

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11-03-2021 дата публикации

SYSTEM AND METHOD TO COUNTERACT THE DRYING OF AQUEOUS INKS IN A PRINTHEAD

Номер: US20210070049A1
Автор: Praharaj Seemit
Принадлежит:

An inkjet printer is configured with capping stations for covering printheads during periods of printer inactivity. Each capping station has a printhead receptacle that encloses a volume, at least two members pivotably mounted to the printhead receptacle so the members can move between a first position where the members are adjacent a wall of the receptacle and a second position where the members extend across the volume of the printhead receptacle, and an actuator operatively connected to the pair of members to move the members between the first position and the second position. A thermoelectric device is mounted to each member. A controller is operatively connected to the actuator to operate the first actuator to move the members between the first position and the second position and to the thermoelectric devices to selectively apply an electrical current to the devices. 1. A capping station useful for storing printheads during periods of inactivity comprising:a printhead receptacle having at least one wall configured to enclose a volume, the printhead receptacle having an opening corresponding to a perimeter of a printhead;at least two members pivotably mounted to the at least one wall of the printhead receptacle, the members being configured to move between a first position where the members are adjacent the at least one wall of the printhead receptacle and a second position where the members extend across the volume of the printhead receptacle;at least two thermoelectric devices, a thermoelectric device is mounted to each member in the at least two members in a one-to-one correspondence;a first actuator operatively connected to the at least two members, the first actuator being configured to move the at least two members between the first position and the second position; anda controller operatively connected to the first actuator and the thermoelectric devices, the controller being configured to operate the first actuator to move the at least two members ...

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11-03-2021 дата публикации

LIQUID DISCHARGE HEAD AND RECORDING DEVICE

Номер: US20210070076A1
Автор: GEJIMA Kenko
Принадлежит: KYOCERA CORPORATION

A liquid discharge head is provided which comprises a head body, a casing and a thermal insulator. The head body comprises a surface having one or more holes configured to discharge liquids therethrough. The casing, disposed on the head body, comprises a heat generator configured to generate heat and a heat sink configured to dissipate the heat. The thermal insulator is between the heat sink and the head body. 1. A liquid discharge head , comprising:a head body comprising a surface having one or more holes configured to discharge liquids therethrough; a heat generator configured to generate heat; and', 'a heat sink configured to dissipate the heat; and, 'a casing, disposed on the head body, comprisinga thermal insulator between the heat sink and the head body.2. The liquid discharge head according to claim 1 ,wherein the thermal insulator is sandwiched by the heat sink and the head body.3. The liquid discharge head according to claim 2 , wherein the heat generator comprises a driver IC.4. The liquid discharge head according to claim 3 , wherein the driver IC is in contact with the heat sink.5. The liquid discharge head according to claim 1 ,wherein the heat sink is a part of the casing.6. The liquid discharge head according to claim 4 ,wherein head body further comprises:a first opening working as a liquid supply port; anda second opening working as a return port for undischarged liquid.7. The liquid discharge head according to claim 6 ,wherein thethe thermal insulator is in contact with the head body.8. A recording device claim 6 , comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a liquid discharge head according to , wherein the heat generator comprises a driver IC;'}a transport section configured to transport a recording medium while causing the recording medium to face the discharge hole of the liquid discharge head; anda control section configured to control the driver IC of the liquid discharge head.9. A liquid discharge head claim 6 , comprising: ...

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05-06-2014 дата публикации

Recording method

Номер: US20140152751A1
Автор: Akihiko Tsunoya
Принадлежит: Seiko Epson Corp

A recording method includes a liquid substance discharge step of discharging a liquid substance from a discharge head toward a predetermined section of sections of the recording medium, and a radiation step of radiating light toward the liquid substance discharged on the recording medium. The liquid substance discharge step and the radiation step are performed n times, with n being an integer of 2 or greater, on the predetermined section to complete recording on the predetermined section while moving the discharge head and the recording medium relative to each other. In the n liquid substance discharge steps, with a recording rate of a first liquid substance discharge step being denoted by a % and a recording rate of a final liquid substance discharge step being denoted by b %, a>b.

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16-03-2017 дата публикации

Print fluid passageway thin film passivation layer

Номер: US20170072692A1
Принадлежит: Hewlett Packard Development Co LP

In an example, a printhead includes a die stack having a plurality of dies and a nozzle plate bonded together. A fluid passageway extends throughout the die stack to enable fluid to flow into a bottom die in the die stack, through the die stack, and out through a nozzle in the nozzle plate. The printhead includes a thin film passivation layer that coats all surfaces of the fluid passageway.

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05-03-2020 дата публикации

APPARATUS AND METHODS FOR NON-CONTACT DAMPING OF OPTICAL FIBER VIBRATION

Номер: US20200072311A1
Принадлежит:

The apparatus for non-contact damping vibration of a vibrating optical fiber moving over an optical fiber path includes an air bearing and an air supply. The air bearing includes a body having an aperture defined by an inner surface and a central axis that passes through the center of the aperture and along which lies the optical fiber path. A plurality of nozzles is distributed around the inner surface and directed toward the central axis. An air conduit within the body is in pneumatic communication with the plurality of nozzles. The air supply is pneumatically connected to the air conduit and is configured to supply pressurized air to the air bearing. The pressurized air is directed through the nozzles to the vibrating optical fiber and impinges on the optical fiber to damp the vibration of the vibrating optical fiber. 1. An apparatus for damping vibration of a vibrating optical fiber moving over an optical fiber path , comprising: a body having an aperture defined by an inner surface of the body;', 'a central axis that passes through the center of the aperture and along which lies the optical fiber path;', 'a plurality of nozzles distributed around the inner surface and directed toward the central axis;', 'an air conduit within the body and that is in pneumatic communication with the plurality of nozzles; and, 'a) an air bearing comprisingb) an air supply pneumatically connected to the air conduit and configured to supply pressurized air to the air bearing, wherein the pressurized air is directed through the nozzles to the vibrating optical fiber to damp the vibration of the vibrating optical fiber.2. The apparatus according to claim 1 , wherein the vibrating optical fiber has a section extending from a first support location to a second support location along the optical fiber path claim 1 , the section having a mid-span location claim 1 , and wherein the air bearing is disposed substantially at the mid-span location.3. The apparatus according to claim 1 , ...

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07-03-2019 дата публикации

A piezoelectric thin film element

Номер: US20190074428A1
Принадлежит: Xaar Technology Ltd

A piezoelectric thin film element comprising a first electrode, a second electrode and one or more piezoelectric thin films there between wherein the first electrode is a platinum metal electrode having an average grain size greater than 50 nm and wherein a piezoelectric thin film adjacent the platinum metal electrode comprises a laminate having a plurality of piezoelectric thin film layers wherein a piezoelectric thin film layer contacting the platinum metal electrode comprises lead zirconate titanate (PZT) of composition at or about PbZr x Ti 1-x O 3 where 0<x≤0.60 and has a degree of pseudo cubic {100} orientation greater than or equal to 90%.

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14-03-2019 дата публикации

LIQUID EJECTING APPARATUS AND METHOD OF DISCHARGING LIQUID USING THE SAME

Номер: US20190077164A1
Автор: Yoshida Takeshi
Принадлежит:

A liquid ejecting apparatus includes a liquid ejecting unit and a pump. The liquid ejecting apparatus has a supply channel, a return channel, and a communication channel. The supply channel is designed to be able to supply the liquid from a liquid supply source to the nozzle. The return channel has ends connected to the supply channel and forms, together with the supply channel, a circulation channel. The communication channel is connected to the return channel and allows communication between an inside of the return channel and an outside. In a state in which the return channel communicates with the outside through the communication channel, the pump is driven so as to perform a return-channel replacement operation in which the liquid in the return channel is discharged to the supply channel side. 1. A liquid ejecting apparatus , comprising:a liquid ejecting unit that ejects liquid from a nozzle;a pump; anda controller,wherein the liquid ejecting apparatus hasa supply channel designed to be able to supply the liquid from a liquid supply source to the nozzle,a return channel that has ends connected to the supply channel and that forms, together with the supply channel, a circulation channel, anda communication channel that is connected to the return channel and that allows communication between an inside of the return channel and an outside,wherein the pump is designed to cause fluid in the circulation channel to flow, andwherein, in a state in which the return channel communicates with the outside through the communication channel, the controller drives the pump to perform a return-channel replacement operation in which the liquid in the return channel is discharged to the supply channel side.2. The liquid ejecting apparatus according to claim 1 , further comprising:a suction pump that functions as the pump and that applies a negative pressure to the liquid ejecting unit to discharge the fluid in the liquid ejecting unit to the outside,wherein, after the return- ...

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26-03-2015 дата публикации

Ink jet head having nozzle plate equipped with piezoelectric elements

Номер: US20150085022A1
Принадлежит: Toshiba Corp, Toshiba TEC Corp

An ink jet head includes: a pressure chamber to be filled with ink formed in a pressure chamber structure, the pressure chamber in which an etching limiter made of a material different from a material of the pressure chamber structure is formed on an inner wall surface of the pressure chamber; a nozzle plate comprising a nozzle that leading to the pressure chamber and a movable range fitted to the etching limiter; and a flat driver comprising a piezoelectric body to operate the movable range and arranged on the nozzle plate.

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12-03-2020 дата публикации

CERAMIC

Номер: US20200079696A1
Принадлежит:

There is disclosed a piezoelectric ceramic having the composition: a[PbTiO]-b[SrTiO]-c[BiFeO]-d[(KBi)TiO]; wherein 0.4 Подробнее

29-03-2018 дата публикации

VALVE JET PRINTER WITH INERT PLUNGER TIP

Номер: US20180086060A1
Принадлежит:

A valve jet printer includes a solenoid coil and a plunger rod having a magnetically susceptible shank. A first end of the shank and at least a portion of the shank are received within a bore of the solenoid coil. The printer also includes a nozzle including an orifice extending therethrough and a spring biasing a second end of the shank toward the nozzle. The second end of the plunger rod includes a tip formed of perfluoroelastomer (FFKM). The second end of the shank includes a cup-shaped cavity having a convex bottom and a circular side. The tip includes a concave base and an annular flange. In an assembled state, the concave base of the tip contacts the convex bottom of the cup-shaped cavity, and the end of the circular side opposite the convex bottom is rolled over the annular flange thereby securing the tip in the cup-shaped cavity. 115.-. (canceled)16. A valve jet printer comprising:a solenoid coil;a magnetically susceptible plunger rod, at least a portion of the plunger rod received within a bore of the solenoid coil;a stop positioned within the bore of the solenoid coil and configured to limit travel of the plunger rod;a nozzle including an orifice extending therethrough; anda spring configured to bias the plunger rod toward the nozzle, wherein the plunger rod comprises a tip formed of perfluoroelastomer (FFKM) configured to contact the orifice of the nozzle.17. The valve jet printer of claim 16 , wherein the plunger rod comprises a shank having a first end and a second end at opposite ends thereof.18. The valve jet printer of claim 17 , wherein the shank is formed of stainless steel that has been heat-treated to make the shank magnetically susceptible.19. The valve jet printer of claim 17 , wherein the second end of the shank comprises a cup-shaped cavity having a convex bottom and a circular side claim 17 , wherein the tip comprises a concave base and an annular flange; andwherein, in an assembled state of the tip and the second end of the shank, the ...

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29-03-2018 дата публикации

Discharging apparatus and method of discharging fluid

Номер: US20180086094A1
Принадлежит: Seiko Epson Corp

A fluid discharging apparatus includes a storage chamber storing a fluid, a discharge port communicating with the storage chamber, a supply unit supplying the fluid to the storage chamber by pressure, a moving object moving in a first direction toward the discharge port and in a second direction away from the discharge port, a pressure changing mechanism, and a control unit controlling the moving object and the pressure changing mechanism. The control unit performs discharge processing, moving processing, and pressure control processing. In the discharge processing, the moving object moves from a closed position closing the discharge port in the first direction to discharge the fluid. In the moving processing, the moving object moves in the second direction while the fluid is discharged from the discharge port. In the pressure control processing, the pressure changing mechanism suppresses a pressure increase in storage chamber.

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21-03-2019 дата публикации

LIQUID DISCHARGING HEAD, LIQUID DISCHARGING UNIT, AND DEVICE FOR DISCHARGING LIQUID

Номер: US20190084313A1
Принадлежит: RICOH COMPANY, LTD.

A liquid discharging head includes: a nozzle plate having a plurality of nozzles from which liquid is discharged; a channel member including a plurality of individual liquid chambers that lead to the plurality of nozzles, respectively, and including a plurality of circulation channels that lead to the plurality of individual liquid chambers, respectively; and a common liquid chamber member for forming a common liquid chamber that supplies liquid to the plurality of individual liquid chambers and for forming a circulation common liquid chamber that leads to the plurality of circulation channels. 1. A liquid discharging head comprising:a nozzle plate having a plurality of nozzles from which liquid is discharged;a channel member including a plurality of individual liquid chambers that lead to the plurality of nozzles, respectively, and including a plurality of circulation channels that lead to the plurality of individual liquid chambers, respectively; anda common liquid chamber member for forming a common liquid chamber that supplies liquid to the plurality of individual liquid chambers and for forming a circulation common liquid chamber that leads to the plurality of circulation channels.2. The liquid discharging head according to claim 1 , wherein the common liquid chamber member is joined to the channel member.3. The liquid discharging head according to claim 1 , wherein the circulation common liquid chamber and a part of the common liquid chamber are arranged side by side in a direction orthogonal to both a direction in which liquid is discharged from the nozzles and a direction in which the nozzles are aligned.4. The liquid discharging head according to claim 1 , wherein the circulation common liquid chamber occupies a part of space in the common liquid chamber member.5. The liquid discharging head according to claim 4 , wherein the circulation common liquid chamber is covered by the common liquid chamber from a surface opposite to the direction in which liquid is ...

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21-03-2019 дата публикации

LIQUID EJECTION HEAD

Номер: US20190084325A1
Принадлежит: BROTHER KOGYO KABUSHIKI KAISHA

A liquid ejection head includes: a first head unit; a second head unit disposed adjacent to the first head unit in a first direction and located on a first side of the first head unit in a second direction; and a heat uniforming unit shared by the first head unit and the second head unit. Each of the first head unit and the second head unit includes: a unit body including an actuator; and a first driver integrated circuit disposed on the first side of the unit body in the second direction. The heat uniforming unit includes a first heat uniforming member disposed on the first side of the first head unit and the second head unit in the second direction. The first heat uniforming member includes a first protrusion located next to the second head unit in the first direction and protruding toward the first head unit. 1. A liquid ejection head , comprising:a first head unit;a second head unit disposed adjacent to the first head unit in a first direction; anda heat uniforming unit shared by the first head unit and the second head unit, a unit body comprising an actuator configured to cause ejection of liquid from a plurality of nozzles;', 'a first driver integrated circuit disposed on a first side of the unit body in a second direction orthogonal to the first direction, the first driver integrated circuit being configured to drive the actuator, the first side and a second side being opposite sides of the first head unit in the second direction, and', 'a second driver integrated circuit disposed on the second side of the unit body in the second direction and configured to drive the actuator,, 'the first head unit and the second head unit each comprising a first heat uniforming member disposed on the first side of the first head unit and the second head unit in the second direction and is in thermal contact with the first driver integrated circuit; and', 'a second heat uniforming member disposed on the second side of the first head unit and the second head unit in the second ...

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30-03-2017 дата публикации

A device for the inkjet printing of fluids, in particular glazes, onto tiles

Номер: US20170087837A1
Принадлежит: System SpA

A device ( 1 ) for inkjet printing of fluids, particularly glazes, onto tiles (P) comprises a body ( 2 ) comprising a feed channel ( 3 ) of a printing fluid, which feed channel ( 3 ) is closed by a base ( 4 ). The base comprises at least one outlet nozzle ( 5 ) associated with a valve ( 7 ) comprising electromagnetic actuating means ( 8 ). A shutter ( 11 ) of the valve ( 7 ) comprises at least one sensitive element ( 12 ) made of a material suitable for interacting with the magnetic field generated by the electromagnetic actuating means ( 8 ) for moving the shutter. A membrane ( 13 ) is arranged within the body ( 2 ) and delimits the feed channel ( 3 ). The membrane ( 13 ) is interposed between the feed channel ( 3 ) and the electromagnetic actuating means ( 8 ). The shutter ( 11 ) is solidly constraint with the membrane ( 13 ).

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05-05-2022 дата публикации

Printing position adjustment method and storage medium

Номер: US20220134777A1
Принадлежит: Canon Inc

Misalignment of printing positions between print heads associated with thermal expansion is reduced without increasing a data processing load. To this end, printing element substrates in a reference head and an adjustment target head are adjusted to a target temperature, and a liquid is circulated through the print element substrates. After thermal expansion of the reference head and the adjustment target head reaches a steady state, a first printing region being a printing region of the reference head and a second printing region being a printing region of the adjustment target head in a longitudinal direction are obtained from an image printed by using all printing elements. Then, used regions to be used for actual printing are set among the printing elements arranged on the reference head and the adjustment target head based on the first printing region and the second printing region.

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31-03-2016 дата публикации

Thin-film piezoelectric material element, method of manufacturing the same, head gimbal assembly, hard disk drive, ink jet head, variable focus lens and sensor

Номер: US20160093792A1
Принадлежит: SAE Magnetics HK Ltd

A thin-film piezoelectric material element includes a lower electrode film, a piezoelectric material film, and an upper electrode film, the lower electrode film, the piezoelectric material film and the upper electrode film are laminated sequentially. An upper surface of the piezoelectric material film is a concavity and convexity surface having a convex part and a concave part, the convex part is a curved surface convexly projected, and the concave part is a curved surface concavely hollowed, the upper electrode film is formed on the concavity and convexity surface. The thin-film piezoelectric material element has a stress balancing film formed with a material having an internal stress capable of cancelling an element stress, the stress balancing film is formed on the upper electrode film.

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28-03-2019 дата публикации

HEAD DEVICE AND LIQUID DISCHARGE APPARATUS INCLUDING THE HEAD DEVICE

Номер: US20190092017A1
Принадлежит: RICOH COMPANY, LTD.

A head device includes a liquid discharge head, a liquid supply channel, a second temperature-control-liquid channel, and a thermal connector. The liquid discharge head includes a heat generation member and a first temperature-control-liquid channel. The first temperature-control-liquid channel is disposed at a vicinity of the heat generation member. A temperature control liquid flows through the first temperature-control-liquid channel. The liquid supply channel supplies a liquid to the liquid discharge head. The temperature control liquid flows through the second temperature-control-liquid channel. The thermal connector thermally connects the liquid supply channel and the second temperature-control-liquid channel. 1. A head device comprising:a liquid discharge head including a heat generation member;a temperature-control-liquid channel disposed at a vicinity of the heat generation member, through which a temperature control liquid to cool the heat generation member flows;a liquid supply channel to supply a liquid to the liquid discharge head; anda thermal connector to thermally connect the temperature-control-liquid channel to the liquid supply channel at an upstream side from the heat generation member in a direction of flow of the temperature control liquid.2. A liquid discharge apparatus comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the head device according to ;'}a temperature regulator to control temperature of the temperature control liquid flowing into the head device; anda control-liquid circulation channel to circulate the temperature control liquid between the head device and the temperature regulator.3. The head device according to claim 1 ,wherein the thermal connector is a metal block.4. The head device according to claim 1 ,wherein the thermal connector is a thermal conductive tape.5. The head device according to claim 1 ,wherein the liquid discharge head includes a piezoelectric actuator.6. The head device according to claim 1 , ...

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28-03-2019 дата публикации

LIQUID EJECTION HEAD AND METHOD OF MANUFACTURING THE SAME

Номер: US20190092019A1
Принадлежит:

A liquid ejection head is manufactured by forming on a substrate an energy generating element for ejecting a liquid, an integrated circuit for driving the energy generating element, a supply port for the liquid so as to penetrate through the substrate, an electrode for generating a liquid flow, and a flow path forming member having an ejection orifice for ejecting the liquid such that a flow path for the liquid is formed between the substrate and the flow path forming member. The electrode is formed over high and low of a stepped shape formed on the substrate in at least one step selected from the steps of forming the energy generating element, forming the integrated circuit and forming the supply port. 1. A method of manufacturing a liquid ejection head , comprising steps of:forming an energy generating element for ejecting a liquid on a substrate;forming an integrated circuit for driving the energy generating element on the substrate;forming a supply port for the liquid such that the supply port penetrates through the substrate;forming an electrode for generating a flow of the liquid; andforming a flow path forming member having an ejection orifice for ejecting the liquid such that a flow path for the liquid is formed between the substrate and the flow path forming member,wherein the electrode is formed over high and low of a stepped shape on the substrate in the step of forming the electrode, the stepped shape being formed in at least one step selected from the group consisting of the steps of forming the energy generating element, forming the integrated circuit and forming the supply port.2. The method of manufacturing a liquid ejection head according to claim 1 , wherein the stepped shape is formed in the step of forming the integrated circuit.3. The method of manufacturing a liquid ejection head according to claim 2 , wherein the stepped shape is formed by a wiring line which is formed in the step of forming the integrated circuit.4. The method of ...

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26-06-2014 дата публикации

Condensation control system for inkjet printing system

Номер: US20140176641A1
Принадлежит: Individual

Condensation control systems are provided for use with inkjet printing systems that use a combination of higher resistance flow areas and lower resistance flow areas to allow a vaporized carrier fluid reducing airflow to flow between a printing module and a receiver during printing without creating observable artifacts in a print. Removal of the vaporized carrier fluid reduces condensation.

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06-04-2017 дата публикации

LIQUID EJECTION SYSTEM, VENTILATION UNIT, LIQUID SUPPLY APPARATUS

Номер: US20170096024A1
Принадлежит:

A liquid ejection system includes a liquid ejection head configured to ejecting liquid, a liquid storage container that includes a liquid storage portion capable of storing the liquid that is to be supplied to the liquid ejection head, and a ventilation unit that constitutes at least a portion of an air introduction portion that is in communication with the liquid storage portion and is configured to introducing air into the liquid storage portion, and is detachable from the liquid storage container. The ventilation unit includes an introduction passage that constitutes at least a portion of a path of air flowing toward the liquid storage portion in the air introduction portion, and an air chamber that constitutes at least a portion of the introduction passage. The ventilation unit is arranged in the periphery of the liquid storage container. 1. A liquid ejection system comprising:a liquid ejection head configured to eject liquid;a liquid storage container including a liquid storage portion configured to store the liquid that is to be supplied to the liquid ejection head; anda ventilation unit that constitutes at least a portion of an air introduction portion that is in communication with the liquid storage portion and is configured to introduce air into the liquid storage portion, and is detachable from the liquid storage container, an introduction passage that constitutes at least a portion of a path of air flowing toward the liquid storage portion in the air introduction portion, and', 'an air chamber that constitutes at least a portion of the introduction passage, and, 'wherein the ventilation unit includes'}the ventilation unit is arranged in a periphery of the liquid storage container.2. The liquid ejection system according to claim 1 ,wherein the liquid storage container includes a liquid injection portion, through which the liquid is injected into the liquid storage portion,when the liquid storage container is in use orientation of the liquid storage ...

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06-04-2017 дата публикации

IMPROVED ADHESIVE BONDING COMPOSITION AND METHOD OF USE

Номер: US20170096585A1
Принадлежит: Immunolight, LLC

A method of and system for adhesive bonding. The method and system a) treat a surface of an element to be bonded to provide an adherent structure including one or more rubber compounds on the surface; b) place a polymerizable adhesive composition, including at least one photoinitiator and at least one energy converting material, in contact with the adherent structure and two or more components to be bonded to form an assembly, c) irradiated the assembly with radiation at a first wavelength, capable of conversion by the at least one energy converting material, to a second wavelength capable of activating the at least one photoinitiator to produce from the polymerizable adhesive composition a cured adhesive composition; and d) adhesively join the two or more components by way of the adherent structure and the cured adhesive composition. 1. A method of adhesive bonding , comprising:a) providing an adherent structure including one or more rubber compounds on a surface of an element to be bonded;b) placing a polymerizable adhesive composition, including at least one photoinitiator and at least one energy converting material, in contact with the adherent structure and two or more components to be bonded to form an assembly;c) irradiating the assembly with radiation at a first wavelength, capable of conversion by the at least one energy converting material to a second wavelength capable of activating the at least one photoinitiator to produce from the polymerizable adhesive composition a cured adhesive composition; andd) adhesively joining the two or more components by way of the adherent structure and the cured adhesive composition.2. The method of claim 1 , wherein said at least one energy converting material is a downconverting material.3. The method of claim 2 , wherein said downconverting material comprises inorganic particulates selected from the group consisting of: metal oxides; metal sulfides; doped metal oxides; and mixed metal chalcogenides.4. The method of ...

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26-03-2020 дата публикации

Liquid discharging head, liquid discharging unit, and device for discharging liquid

Номер: US20200094573A1
Принадлежит: Ricoh Co Ltd

A liquid discharging head includes a nozzle plate having a plurality of nozzles from which liquid is discharged; a plurality of individual liquid chambers that are communicably connected to the plurality of nozzles, respectively; a common liquid chamber that supplies liquid to the plurality of individual liquid chambers; and a circulation common liquid chamber that leads to a plurality of circulation channels. A part of the common liquid chamber overlaps the circulation common liquid chamber from a direction in which liquid is discharged from the nozzles, and another part of the common liquid chamber overlaps the circulation common liquid chamber from a direction orthogonal to both the direction in which liquid is discharged from the nozzles and a direction in which the nozzles are aligned.

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13-04-2017 дата публикации

Piezoelectric ceramics, and piezoelectric element, and electronic equipment containing piezoelectric ceramics

Номер: US20170101345A1
Принадлежит: Canon Inc

Provided is a lead-free piezoelectric ceramics having enhanced mechanical quality factor (Qm) and mechanical strength. The piezoelectric ceramics, includes at least a first crystal grain and a second crystal grain. The first crystal grain has an average equivalent circle diameter of 2 μm or more and 30 μm or less. The first crystal grain includes a perovskite-type metal oxide represented by the following general formula (1) as a main component, and the second crystal grain includes a perovskite-type metal oxide represented by the following general formula (2) as a main component: (1) xBaTiO 3 -yCaTiO 3 -zCaZrO 3 ; and (2) x′BaTiO 3 -y′CaTiO 3 -z′CaZrO 3 , provided that x, y, z, x′, y′, and z′ satisfy x+y+z=1, x′+y′+z′=1, 0≦x′≦0.15, 0.85≦y′≦1, 0≦z′≦0.05, x>x′, 0<y<y′, and z>0.

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04-04-2019 дата публикации

LIQUID EJECTION APPARATUS

Номер: US20190100001A1
Принадлежит: BROTHER KOGYO KABUSHIKI KAISHA

A liquid ejection apparatus, including: a channel structure in which a channel is formed; an actuator stacked on the channel structure in a stacking direction, the actuator configured to cause a liquid in the channel to be ejected; a first frame formed of metal and stacked on the channel structure in the stacking direction; a driver integrated circuit (IC) electrically connected to the actuator; and a second frame formed of metal, the second frame including at least two side walls facing each other and an upper wall extending between the two side walls and extending in a direction orthogonal to the stacking direction, the second frame being thermally connected to the first frame, wherein the driver IC is disposed between the two side walls, and the upper wall of the second frame is thermally connected to the driver IC. 1. A liquid ejection apparatus , comprising:a channel structure in which a channel is formed;an actuator stacked on the channel structure in a stacking direction, the actuator configured to cause a liquid in the channel to be ejected;a first frame formed of metal and stacked on the channel structure in the stacking direction;a driver integrated circuit (IC) electrically connected to the actuator; anda second frame formed of metal, the second frame including at least two side walls facing each other and an upper wall extending between the two side walls and extending in a direction orthogonal to the stacking direction, the second frame being thermally connected to the first frame,wherein the driver IC is disposed between the two side walls, and the upper wall of the second frame is thermally connected to the driver IC.2. The liquid ejection apparatus according to claim 1 , wherein a liquid chamber is formed on one side of the upper wall opposite to the other side thereof on which the driver IC is thermally connected.3. The liquid ejection apparatus according to claim 2 , comprising two driver ICs each as the driver IC claim 2 ,wherein the two driver ...

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04-04-2019 дата публикации

AMORPHOUS THIN METAL FILM

Номер: US20190100007A1
Принадлежит:

An amorphous thin metal film can include a combination of metals or metalloids including: 5 at % to 74 at % of a metalloid selected from the group of carbon, silicon, and boron; 5 at % to 74 at % of a first metal; 5 at % to 74 at % of a second metal; and 5 at % to 70 at % of a dopant. The first and second metals can be independently selected from the group of titanium, vanadium, chromium, iron, cobalt, nickel, zirconium, niobium, molybdenum, ruthenium, rhodium, palladium, hafnium, tantalum, tungsten, osmium, iridium, or platinum, wherein the first metal and the second metal can be different metals. The dopant can be selected from the group of oxygen, nitrogen, or combinations thereof. The metalloid, first metal, second metal, and dopant can account for at least 70 at % of the amorphous thin metal film. 1. An amorphous thin metal film , comprising:5 at % to 74 at % of a metalloid, wherein the metalloid is carbon, silicon, or boron;5 at % to 74 at % of a first metal, wherein the first metal is titanium, vanadium, chromium, iron, cobalt, nickel, zirconium, niobium, molybdenum, ruthenium, rhodium, palladium, hafnium, tantalum, tungsten, osmium, iridium, or platinum;5 at % to 74 at % of a second metal, wherein the second metal is titanium, vanadium, chromium, iron, cobalt, nickel, zirconium, niobium, molybdenum, ruthenium, rhodium, palladium, hafnium, tantalum, tungsten, osmium, iridium, or platinum, wherein the second metal is different than the first metal; and16 at % to 70 at % of a dopant of nitrogen, oxygen, or mixture thereof,wherein the metalloid, the first metal, the second metal, and the dopant account for at least 70 at % of the amorphous thin metal film.2. The amorphous thin metal film of claim 1 , wherein the amorphous thin metal film has a thickness ranging from 10 angstroms to 100 microns.3. The amorphous thin metal film of claim 1 , wherein the amorphous thin metal film is devoid of aluminum claim 1 , silver claim 1 , and gold.4. The amorphous thin metal ...

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04-04-2019 дата публикации

DRYING DEVICE, LIQUID DISCHARGE APPARATUS, AND TREATMENT LIQUID APPLICATOR

Номер: US20190100031A1
Принадлежит:

A drying device includes a plurality of blowers to blow air onto an object to be dried, the plurality of blowers being disposed along a direction of conveyance of the object to be dried, and a plurality of heaters to heat air inside the plurality of blowers. Each of the plurality of blowers includes an elongated nozzle arranged along a nozzle direction perpendicular to the direction of conveyance of the object to be dried, and an airflow generator to generate airflow to be blown from the elongated nozzle. The plurality of blowers includes a first blower including the airflow generator at a first end of the first blower in the nozzle direction and a second blower including the airflow generator at a second end of the second blower opposite the first end in the nozzle direction. 1. A drying device comprising:a plurality of blowers to blow air onto an object to be dried, the plurality of blowers being disposed along a direction of conveyance of the object to be dried; anda plurality of heaters to heat air inside the plurality of blowers, an elongated nozzle arranged along a nozzle direction perpendicular to the direction of conveyance of the object to be dried; and', 'an airflow generator to generate airflow to be blown from the elongated nozzle,, 'wherein each of the plurality of blowers includes a first blower including the airflow generator at a first end of the first blower in the nozzle direction; and', 'a second blower including the airflow generator at a second end of the second blower opposite the first end in the nozzle direction., 'wherein the plurality of blowers includes2. The drying device according to claim 1 , wherein the first blower includes a plurality of first blowers; andthe second blower includes a plurality of second blowers,wherein the plurality of first blowers and the plurality of second blowers are disposed alternately in the direction of conveyance.3. The drying device according to claim 1 , wherein the first blower includes a plurality of ...

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02-06-2022 дата публикации

Head unit and liquid discharge apparatus

Номер: US20220169017A1
Принадлежит: Seiko Epson Corp

There are provided a first fixing section to a third fixing section that fix a heat sink to a substrate on which a first driving circuit and a second driving circuit are disposed; the first drive circuit includes first transistor and first integrated circuit, and the second drive circuit includes second transistor and second integrated circuit, lengths of the first transistor and the second transistor in the normal direction of the substrate are longer than lengths of the first integrated circuit and the second integrated circuit, the first fixing section and the second fixing section overlap a first virtual straight line that connects the first transistor and the second transistor, and the third fixing section overlaps a second virtual straight line that connects the first integrated circuit and the second integrated circuit to each other.

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04-04-2019 дата публикации

ADHESIVE BONDING COMPOSITION AND METHOD OF USE

Номер: US20190100680A1
Принадлежит: Immunolight, LLC.

A method of and system for adhesive bonding. The method and system a) treat a surface of an element to be bonded to provide an adherent structure including one or more rubber compounds on the surface; b) place a polymerizable adhesive composition, including at least one photoinitiator and at least one energy converting material, in contact with the adherent structure and two or more components to be bonded to form an assembly, c) irradiated the assembly with radiation at a first wavelength, capable of conversion by the at least one energy converting material, to a second wavelength capable of activating the at least one photoinitiator to produce from the polymerizable adhesive composition a cured adhesive composition; and d) adhesively join the two or more components by way of the adherent structure and the cured adhesive composition. 1. A curable polymer system comprising:{'sup': '2', 'an adherent structure attached to a low energy surface of an element to be bonded, said surface having a surface energy less than 50 mJ/m;'}at least one polymerizable adhesive composition for adhesive attachment to the adherent structure;at least one photoinitiator responsive to a selected wavelength of light; andat least one energy converting material selected to emit said wavelength of light when exposed to an imparted radiation.2. The curable polymer system of claim 1 , wherein said at least one energy converting material is a downconverting material.3. The curable polymer system of claim 2 , wherein said downconverting material comprises inorganic particulates selected from the group consisting of: metal oxides; metal sulfides; doped metal oxides; and mixed metal chalcogenides.4. The curable polymer system of claim 2 , wherein said downconverting material comprises at least one of YO claim 2 , YOS claim 2 , NaYF claim 2 , NaYbF claim 2 , YAG claim 2 , YAP claim 2 , NdO claim 2 , LaF claim 2 , LaCl claim 2 , LaO claim 2 , TiO claim 2 , LuPO claim 2 , YVO claim 2 , YbF claim 2 , YF ...

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29-04-2021 дата публикации

Liquid discharging head and ink-jet apparatus

Номер: US20210122161A1

A liquid discharging head and an ink-jet apparatus that can achieve stable discharging over time by suppressing clogging of a nozzle due to particles and the like contained in liquid, and by suppressing adhesion of particles to a channel and a diaphragm surface. A liquid discharging head includes a nozzle configured to discharge liquid; a pressure chamber communicated with the nozzle; an individual channel communicated with the pressure chamber through a narrow part; a common channel communicated with the individual channel; an energy generation element configured to generate energy; and a diaphragm configured to convey the energy to the pressure chamber, wherein a monomolecular film is formed at inner walls of the nozzle, the pressure chamber, the narrow part, the diaphragm, and the individual channel, the monomolecular film being lyophilic to the liquid.

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02-04-2020 дата публикации

LIQUID DISCHARGE APPARATUS

Номер: US20200101743A1
Автор: MIZUNO Taisuke
Принадлежит: BROTHER KOGYO KABUSHIKI KAISHA

There is provided a liquid discharge apparatus including: a plurality of individual channels; a supply channel; a return channel; an open/close valve; a pump provided on the return channel; and a controller. In a case that the controller removes an air bubble, the controller is configured to execute: circulation of the liquid along a circulation route by maintaining the open/close valve at an open position and driving the pump; and then moving of the liquid from the storing chamber to the plurality of individual channels via the return channel so as to exhaust the liquid from the plurality of nozzles of the plurality of individual channels, respectively, by maintaining the open/close valve at a close position and driving the pump. 1. A liquid discharge apparatus comprising:a plurality of individual channels in which a plurality of nozzles are opened, respectively;a supply channel communicating with an outlet port of a storage chamber storing a liquid and with an inlet port of each of the plurality of individual channels;a return channel communicating with an outlet port of each of the plurality of individual channels and with an inlet port of the storage chamber;an open/close valve which is provided on the supply channel and which is switchable between an open position allowing communication between the storing chamber and the plurality of individual channels via the supply channel and a close position suppressing the communication;a pump provided on the return channel; anda controller,wherein in a case that an air bubble is removed, the controller is configured to control the open/close valve and the pump so as to execute:circulation of the liquid along a circulation route starting from, and returning to, the storing chamber via the supply channel, the plurality of individual channels and the return channel by maintaining the open/close valve at the open position and driving the pump; andthen moving of the liquid from the storing chamber to the plurality of ...

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02-04-2020 дата публикации

DIELECTRIC INK COMPOSITION

Номер: US20200102468A1
Принадлежит: XEROX CORPORATION

A dielectric ink composition includes at least one (meth)acrylate compound selected from the group consisting of (meth)acrylate monomers, (meth)acrylate oligomers and combinations thereof; a sensitizing photoinitiator; an amine synergist photoinitiator; a phosphine oxide photoinitiator and a gellant. A device including a dielectric layer formed by printing the dielectric ink composition described herein is also disclosed 1. A dielectric ink composition , comprising:at least one (meth)acrylate compound selected from the group consisting of (meth)acrylate monomers, (meth)acrylate oligomers and combinations thereof;a sensitizing photoinitiator;an amine synergist photoinitiator;a phosphine oxide photoinitiator; anda gellant.2. The composition of claim 1 , wherein the at least one (meth)acrylate compound includes at least one of the (meth)acrylate oligomers and at least two of the (meth)acrylate monomers claim 1 , the at least two (meth)acrylate monomers comprising a lowest viscosity mono-functional or di-functional monomer and a highest viscosity mono-functional or di-functional monomer.3. The composition of claim 2 , wherein the at least one (meth)acrylate oligomer is selected from the group consisting of polyester (meth)acrylate oligomers claim 2 , polyether (meth)acrylate oligomers claim 2 , epoxy (meth)acrylate oligomers claim 2 , and urethane (meth)acrylate oligomers.4. The composition of claim 1 , wherein the at least one (meth)acrylate compound comprises at least two different (meth)acrylate monomers claim 1 , the at least two different (meth)acrylate monomers being selected from the group consisting of monofunctional (meth)acrylates claim 1 , difunctional (meth)acrylates claim 1 , trifunctional (meth)acrylates and combinations thereof.5. The composition of claim 1 , wherein the at least one (meth)acrylate compound includes the (meth)acrylate monomers claim 1 , the (meth)acrylate monomers comprising a trifunctional (meth)acrylate cross linker.6. The composition ...

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09-06-2022 дата публикации

Method and device for the rapid manufacture of a three-dimensional workpiece from a molten material

Номер: US20220176451A1
Принадлежит: ROBERT BOSCH GMBH

The invention relates to a method for the rapid manufacture of a three-dimensional workpiece from a molten material (1), in particular a molten metal, in which method the molten material (1) is supplied to a compression chamber (2) and delivered in drop form via an injector hole (4) by means of a pressure pulse which is generated with the aid of a reciprocating piston (3) that delimits the compression chamber (2). According to the invention, the compression chamber (2) is degassed before manufacturing begins and/or during a pause in the manufacturing. In a first step, ultrasonic waves are coupled into the molten material (1) in the compression chamber (2), which generate a force (FBjrk) that makes the gas in the molten material (1) sink, and in a second step, after the ultrasonic excitation has ended, the piston (3) is introduced deeper into the compression chamber (2) in order to remove the rising gas via a conduit (5) of the piston (3). The invention also relates to a device for carrying out the method according to the invention.

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26-04-2018 дата публикации

VALVE

Номер: US20180111384A1
Автор: FISHER Gil
Принадлежит: HP INDIGO B.V.

A valve comprises an orifice plate () having one or more orifices () through which a fluid may flow, and one or more piezo-electric elements (). Each element () has a face positioned to contact the orifice plate at an orifice. Each element has a first state in which it abuts the plate to prevent flow of fluid through the associated orifice and a second state in which the face is spaced from the plate to allow flow through the associated orifice. A controller () selectively applies a first voltage to an elements to cause it to adopt the first state and applies a second voltage to the one or more elements to cause the elements to adopt the second state. 1. A printer comprising:a fluid source comprising a nozzle to eject drops from the fluid source;a gas jet along a path of drops ejected from the nozzle;a valve comprising a piezo electric device to block and unblock the gas jet;a controller to selectively operate the valve to deflect some drops ejected from the nozzle out of the path with the gas jet and to allow other drops ejected from the nozzle to follow the path to a print medium, wherein drops are selectively deflected or allowed to reach the print medium in accordance with data from a host device defining an image to be printed.2. The printer of claim 1 , wherein:the gas jet comprises an orifice in an orifice plate, the orifice directing a flow of gas under pressure into the path of drops; andthe piezo electric device of the valve moves linearly in a direction perpendicular to the orifice plate to selectively block or unblock the orifice to the flow of gas.3. The printer of claim 1 , further comprising a gutter to collect drops deflected from the path by the gas jet.4. The printer of claim 3 , further comprising a recirculating system to return drops from the gutter to the fluid source.5. The printer of claim 1 , further comprising a vibrator to eject drops from the fluid source via the nozzle.6. The printer of claim 1 , wherein:the fluid source comprises an ...

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18-04-2019 дата публикации

PRINTER, PRINTING METHOD, AND INK JET HEAD

Номер: US20190111688A1
Принадлежит:

To provide a printer that can suppress self-jet generated by ejection of ink from a nozzle row and can improve printing quality. 1. A printer , comprising:an ink jet head that ejects liquid from a nozzle row being open in a liquid ejection surface arranged on a surface facing a printing medium;a plasma actuator; anda controller that controls the ink jet head and the plasma actuator,wherein, when the nozzle row ejects the liquid to the printing medium, the controller drives the plasma actuator to generate an airflow between the liquid ejection surface and the printing medium.2. The printer according to claim 1 , wherein the ink jet head is a serial-type ink jet head mounted on a carriage that reciprocates in a main-scanning direction.3. The printer according to claim 2 , wherein the plasma actuator is arranged beside the nozzle row in a movement direction of the ink jet head.4. The printer according to claim 2 , wherein the plasma actuator is arranged beside the nozzle row in a direction intersecting with a movement direction of the ink jet head.5. The printer according to claim 2 ,wherein the ink jet head has a side surface intersecting with the liquid ejection surface,wherein the plasma actuator is arranged on the side surface in a movement direction of the ink jet head, andwherein, when the nozzle row ejects the liquid, the controller drives the plasma actuator to generate an airflow in a direction from the ink jet head toward the printing medium.6. The printer according to claim 1 , wherein the ink jet head is a line-type ink jet head extending in a direction intersecting with a transport direction of the printing medium.7. The printer according to claim 6 , wherein the plasma actuator is arranged beside the nozzle row in the transport direction of the printing medium.8. The printer according to claim 6 , wherein the plasma actuator is arranged beside the nozzle row in the direction intersecting with the transport direction of the printing medium.9. The printer ...

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09-04-2020 дата публикации

Aqueous Ink Jet Ink Composition And Ink Jet Recording Method

Номер: US20200109301A1
Принадлежит:

An aqueous ink jet ink composition is for use in an ink jet recording method. The method includes ejecting ink from an ink jet head including nozzles. The nozzles are configured such that a shape of a side wall surface is a scalloped shape in which a scallop width S and a notch depth S satisfy S/S≥4. The aqueous ink jet ink composition includes a pigment and a solvent that contains a specific compound. 11212. An aqueous ink jet ink composition for use in an ink jet recording method , the method including ejecting ink from an ink jet head including nozzles , the nozzles being configured such that a shape of a side wall surface is a scalloped shape in which a scallop width S and a notch depth S satisfy S/S≥4 , {'br': None, 'sub': 1', '2, 'R—O—R—OH\u2003\u2003(1)'}, 'the aqueous ink jet ink composition comprising a pigment and a solvent that contains a compound represented by general formula (1) below{'sub': 1', '2, 'claim-text': {'br': None, 'sub': 3', '4, 'R—O—R\u2003\u2003(2)'}, 'where Rrepresents a hydrogen atom, a methyl group, or an ethyl group, and Rrepresents a divalent saturated hydrocarbon group having 5 or fewer carbon atoms or a group represented by general formula (2) below{'sub': 3', '4, 'where Rand Reach independently represent a divalent saturated hydrocarbon group having 2 or 3 carbon atoms.'}2. The aqueous ink jet ink composition according to claim 1 , wherein a content of the compound represented by general formula (1) is from 2 to 16 mass % relative to a total amount of the aqueous ink jet ink composition.3. The aqueous ink jet ink composition according to claim 1 , wherein the compound represented by general formula (1) is at least one selected from the group consisting of ethylene glycol claim 1 , diethylene glycol claim 1 , propylene glycol claim 1 , dipropylene glycol claim 1 , and propylene glycol monomethyl ether.4. The aqueous ink jet ink composition according to claim 1 , wherein the solvent includes a penetrating solvent claim 1 , and the ...

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09-06-2022 дата публикации

Thin-film piezoelectric material element

Номер: US20220180896A1
Автор: Atsushi Iijima, Wei Xiong
Принадлежит: SAE Magnetics HK Ltd

A thin-film piezoelectric material elements are arranged on a thin-film piezoelectric material substrate. The thin-film piezoelectric material substrate includes an insulator on Si substrate including a substrate including silicon and an insulating layer on a surface of the substrate. The thin-film piezoelectric material element includes a thin-film laminated part on a top surface of the insulating layer. The thin-film laminated part includes a YZ seed layer including yttrium and zirconium, and formed on the top surface; a lower electrode film laminated on the YZ seed layer; a piezoelectric material film including lead zirconate titanate, shown by a formula Pb (Zr x Ti (1-x) ) O 3 (0≤×≤1), and an upper electrode film laminated on the piezoelectric material film. The thin-film laminated part further includes an upper piezoelectric-material protective-film, laminated on the upper side of the upper electrode film.

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12-05-2016 дата публикации

Piezoelectric layer, piezoelectric component, piezoelectric actuator, piezoelectric sensor, hard-disk drive and ink jet printer

Номер: US20160133825A1
Принадлежит: TDK Corp

A piezoelectric layer made of potassium sodium niobate which is a perovskite type compound represented by the formula ABO 3 , wherein, in the Raman spectroscopy measurement of the piezoelectric layer which is performed while the piezoelectric layer is rotated in the in-plane direction, the measured intensity of the lattice vibration region of the perovskite type compound in the Raman spectrum obtained in polarized Raman spectroscopy measurement (yx) has a periodicity of approximately 90°, wherein, the polarized Raman spectroscopy measurement (yx) is performed while the piezoelectric layer is rotated in the in-plane direction and Raman scattering light is polarized in a direction perpendicular to that of the incident light.

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01-09-2022 дата публикации

PRINTER, CONTROL METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM STORING COMPUTER-READABLE INSTRUCTIONS

Номер: US20220274401A1
Принадлежит:

A printer is provided with a head configured to discharge ink, a fan configured to cool the head, a sensor configured to output a detection signal indicating a state of the fan. A processer of the printer performs decision processing of deciding print control based on a detection signal output by the sensor. In the decision processing, the processor decides a first print control to drive the fan and control printing by the head in a first print mode, when the detection signal does not indicate a failure state of the fan. In the decision processing, the processor decides a second print control to control the printing by the head in a second print mode suppressing generation of heat more than the first print mode, when the detection signal indicates the failure state of the fan. 1. A printer comprising:a head configured to discharge ink;a fan configured to cool the head;a sensor configured to output a detection signal indicating a state of the fan;a processor; and decision processing of deciding print control based on the detection signal output by the sensor, the decision processing including deciding a first print control to drive the fan and control printing by the head in a first print mode, when the detection signal does not indicate a failure state of the fan, and deciding a second print control to control the printing by the head in a second print mode suppressing generation of heat more than the first print mode, when the detection signal indicates the failure state of the fan; and', 'print control processing of performing the print control decided by the decision processing., 'a memory storing computer-readable instructions that, when executed by the processor, instruct the processor to perform processes comprising2. The printer according to claim 1 , wherein deciding the first print control when the detection signal indicates the failure state of the fan and a discharge failure condition is not established, and', 'deciding the second print control when the ...

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01-09-2022 дата публикации

Recording Method And Ink Jet Recording Apparatus

Номер: US20220275223A1
Принадлежит:

A recording method includes an adhesion step of ejecting an ink composition from an ink jet head to be adhered to a recording medium; and a primary heating step of heating the adhered ink composition, and the adhesion step includes at least one main scanning in which while a relative position of the ink jet head and the recording medium is changed in a main scanning direction, the ink composition is adhered to the recording medium and at least one sub-scanning in which the relative position of the ink jet head and the recording medium is changed in a sub-scanning direction. In the recording method described above, the number of the main scannings performed on the same recording region of the recording medium is 5 or less, the ink composition is a water-based ink containing a pigment, a resin, and an organic solvent, and in a chart of logarithmic attenuation with temperature obtained by measurement of the ink composition using a rigid-body pendulum characteristics test, the ink composition has a temperature of a first thickening peak of 30° C. to 65° C. and a temperature of a maximum thickening peak of 70° C. or more. 1. A recording method comprising:an adhesion step of ejecting an ink composition from an ink jet head to be adhered to a recording medium; anda primary heating step of heating the adhered ink composition,wherein the adhesion step includes at least one main scanning in which while a relative position of the ink jet head and the recording medium is changed in a main scanning direction, the ink composition is adhered to the recording medium and at least one sub-scanning in which the relative position of the ink jet head and the recording medium is changed in a sub-scanning direction,the number of the main scannings performed on the same recording region of the recording medium is 5 or less,the ink composition is a water-based ink containing a pigment, a resin, and an organic solvent, andin a chart of logarithmic attenuation with temperature obtained by ...

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10-05-2018 дата публикации

PIEZOELECTRIC FILM AND METHOD FOR MANUFACTURING SAME

Номер: US20180130942A1
Автор: ARAKAWA Takami
Принадлежит: FUJIFILM Corporation

Provided is a piezoelectric film having a perovskite type crystal structure represented by the following Formula (P), in which a piezoelectric constant d(pm/V), a relative dielectric constant ∈ (−), and a dielectric loss tan δ (−) satisfy (d)/(∈×tan δ×1000)>3. In addition, a method for manufacturing the above piezoelectric film is provided. 1. A piezoelectric film having a perovskite type crystal structure represented by the following Formula (P):{'br': None, 'sub': x', 'a', '1-a', '1-y', 'y', 'z, 'Pb[(ZrTi)Nb]O\u2003\u2003(P)'}where x represents a lead content, y represents a Nb content·B site doping amount, z represents an oxygen content, a represents a Zr/Ti ratio, and y>0.14, and although x=1.0 and z=3 is standard, numerical values of x and z may deviate from 1.0 and 3, respectively, within a range where a perovskite structure can be adopted,wherein the piezoelectric film has a thickness of 2 μm or more, and{'sup': '2', 'the number of particles containing carbon and having a particle size of 200 nm or more, which are deposited on a surface of the piezoelectric film, is 1000 particle/μmor less.'}2. The piezoelectric film as defined in claim 1 , wherein the piezoelectric film has a thickness of 3 μm or more.3. A method for manufacturing a piezoelectric film claim 1 , {'br': None, 'sub': x', 'a', '1-a', '1-y', 'y', 'z, 'Pb[(ZrTi)Nb]O\u2003\u2003(P)'}, 'the piezoelectric film having a perovskite type crystal structure represented by the following Formula (P)where x represents a lead content, y represents a Nb content·B site doping amount, z represents an oxygen content, a represents a Zr/Ti ratio, and y>0.14, and although x=1.0 and z=3 is standard, numerical values of x and z may deviate from 1.0 and 3, respectively, within a range where a perovskite structure can be adopted,the method comprisingforming a piezoelectric film with a sputtering method using a raw material target which has a composition corresponding to a film composition for forming the piezoelectric ...

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03-06-2021 дата публикации

LIQUID EJECTION APPARATUS AND INKJET RECORDING APPARATUS CAPABLE OF COOLING A CONTROL BOARD OF A LIQUID EJECTION HEAD WITHOUT COOLING A LIQUID SUPPLY PATH

Номер: US20210162751A1
Автор: ETO Daisuke
Принадлежит: KYOCERA Document Solutions Inc.

Provided is a liquid ejection apparatus capable of cooling a control board of a liquid ejection head without cooling a liquid supply path. Ae liquid ejection unit ejects ink onto paper. Ae control board controls the operation of the liquid ejection unit. Ae head housing covers and houses the control board inside thereof. Ae liquid supply path supplies ink to the liquid ejection head. Ae main body housing covers and houses a portion of the liquid ejection head except for the liquid ejection unit. A fan causes air to flow between the main body housing and the head housing. The liquid supply path is inserted from the outside to the inside of the main body housing in the vicinity of the liquid ejection head, and is connected to the liquid ejection head. 1. A liquid ejection apparatus , comprising:a liquid ejection head having a liquid ejection unit that ejects liquid onto a recording medium, a control board that controls operation of the liquid ejection unit, and a head housing that covers and houses the control board inside thereof,a liquid supply path for supplying the liquid to the liquid ejection head;a main body housing that covers and houses the liquid ejection head except for the liquid ejection unit; anda fan for causing air to flow between the main body housing and the head housing; whereinthe liquid supply path is inserted from the outside to the inside of the main body housing in the vicinity of the liquid ejection head and is connected to the liquid ejection head.2. The liquid ejection apparatus according to claim 1 , whereinthe control board is arranged adjacent to an inner surface of the head housing.3. The liquid ejection apparatus according to claim 1 , whereinthe liquid ejection head includes a heater arranged in a vicinity of the liquid ejection unit and heats the liquid ejection unit.4. The liquid ejection apparatus according to claim 1 , whereinthe main body housing comprises:an intake opening arranged at one end of the main body housing;an exhaust ...

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