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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 80. Отображено 80.
04-01-2016 дата публикации

CARD TYPE REMOTE CONTROLLER BY SELF GENERATING

Номер: KR0101582274B1
Автор: 백종후, 정영훈, 김창일, 조정호, 조영봉, 신원석
Принадлежит: 한국세라믹기술원

... 압전 액츄에이터(actuator)를 이용한 자가 발전식 카드형 리모컨에 관하여 개시한다.본 발명의 일 실시예에 따른 자가 발전식 카드형 리모컨은, 카드형 몸체부, 몸체부에 구비되며 전기적인 동작 제어 신호를 발생시키는 컨트롤부, 컨트롤부로부터 발생된 동작 제어 신호를 원격 상의 제어 대상체에 전송하는 무선통신모듈, 몸체부에 내장되어, 몸체부를 통해 가해진 물리적인 외력에 의해 전원을 발생시켜 상기 컨트롤부 및 무선통신모듈에 전원을 제공하는 압전부재를 포함한다.

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Номер записи: 1
10-08-2017 дата публикации

PIEZOELECTRIC TRANSDUCER FOR DIRECTIONAL SPEAKER, AND DIRECTIONAL SPEAKER INCLUDING SAME

Номер: KR101765006B1
Автор: JEONG, YOUNG HUN, CHO, JEONG HO, YUN, JI SUN, PAIK, JONG HOO
Принадлежит: KOREA INSTITUTE OF CERAMIC ENGINEERING AND TECHNOLOGY

The present invention relates to a piezoelectric transducer for a directional speaker, and to a directional speaker including the same. The piezoelectric transducer for a directional speaker comprises: a base material including protrusion parts protruding from the surface of a flat portion and disposed to be spaced apart from each other in one direction to form cavities; a flexible film disposed on a concavoconvex surface of the base material so as to cover the base material entirely, attached to the protrusion parts, and disposed while facing the surface of the flat portion at a separation region having the protrusion parts separated; and multiple piezoelectric elements, each of which is disposed on the top surface of the flexible film, includes a piezoelectric layer extended or contracted by being deformed by electric signals applied to both ends thereof, and is disposed in each of separation regions having the protrusion parts separated. Accordingly, sound pressure is maximized, and ...

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Номер записи: 2
18-12-2015 дата публикации

FLEXIBLE PIEZOELECTRIC SPEAKER INCLUDING BATTERY

Номер: KR101578806B1
Автор: JEONG, YOUNG HUN, CHO, JEONG HO, PAIK, JONG HOO, YUN, JI SUN
Принадлежит: KOREA INSTITUTE OF CERAMIC ENGINEERING AND TECHNOLOGY

According to the present invention, a flexible piezoelectric speaker includes: a flexible vibration panel, including a film type battery; and a piezoelectric element including a first electrode, a piezo-fiber composite structure, and a second electrode which are sequentially placed on the vibration panel. The fiber composite structure includes multiple piezoelectric ceramic rods connected to multiple piezoelectric ceramics across metal patterns in a longitudinal direction. The piezoelectric ceramic rods are arranged in parallel to each other and the piezoelectric ceramics and the metal patterns are arranged in a vertical direction. Adhesives are placed between the piezoelectric ceramic rods to connect the piezoelectric ceramic rods with each other. Therefore, the present invention is capable of minimizing damage to a flexible piezoelectric speaker, caused by external stress, securing flexibility, and enabling miniaturization while improving portability. Specifically, according to the present ...

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Номер записи: 3
21-09-2016 дата публикации

PIEZOELECTRIC ACTUATOR AND METHOD FOR DRIVING SAME

Номер: KR1020160108953A
Автор: JEONG, YOUNG HUN, CHO, JEONG HO, PAIK, JONG HOO, YUN, JI SUN
Принадлежит:

In a piezoelectric actuator and a method for driving the same according to the present invention, the piezoelectric actuator includes: two pairs of first electrode patterns arranged by being overlapped up and down and projected in an equal shape; two pair of second electrode patterns which are arranged in an interdigitated type with each of the first electrode patterns, and are arranged by being overlapped up and down to be projected in an equal shape, and are applied with a voltage of an opposite polarity to a voltage applied to the first electrode patterns; and a first piezoelectric material arranged among one pair of first electrode patterns; and a second piezoelectric material which is arranged to be opposite to the first piezoelectric material, and is arranged among one pair of first electrode patterns. A polarization direction of a piezoelectric active area of the first piezoelectric material is opposite to a polarization direction of a piezoelectric active area of the second piezoelectric ...

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Номер записи: 4
06-10-2016 дата публикации

압전 소자 및 압전 스피커

Номер: KR0101663089B1
Автор: 정영훈, 조정호, 백종후, 윤지선
Принадлежит: 한국세라믹기술원

... 본 발명에 따른 압전 소자 및 압전 스피커에서 압전 소자는 제1 베이스 필름, 제1 베이스 필름 상에 배치된 제1 전극, 제1 전극 상에 배치된 파이버 컴포지트 구조체 및 파이버 컴포지트 구조체 상에 배치된 제2 전극을 포함하고, 파이버 컴포지트 구조체는, 복수의 압전 세라믹이 길이 방향으로 사이에 연결 패턴을 두고 연결되어 있는 압전 세라믹 로드를 복수개 포함하고, 복수의 압전 세라믹 로드가 서로 옆으로 나란히 배치되어 길이 방향에 수직한 방향을 따라서 각각 압전 세라믹 및 연결 패턴이 나란히 배치되어 있으며, 나란히 배치된 복수의 압전 세라믹 로드 사이에는 접착제가 배치되어 복수의 압전 세라믹 로드가 서로 연결되어 있는 것을 특징으로 한다. 이에 따라, 이러한 압전 소자를 이용하여 압전 스피커에 적용함으로써 외부 응력에 의한 손상을 최소화시키고 유연성을 확보하면서도, 소형화를 구현하고 휴대성이 향상될 수 있다. 특히, 본 발명에 따른 압전 소자 및 압전 스피커는 웨어러블 장치나 자동차, 액츄에이터(actuator) 등에 용이하게 적용될 수 있다.

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Номер записи: 5
06-12-2016 дата публикации

VIBRATION ENERGY HARVESTING DEVICE

Номер: KR101682962B1
Автор: JEONG, YOUNG HUN, PAIK, JONG HOO, CHO, JEONG HO, YUN, JI SUN, KIM, CHANG IL, PARK, SHIN SEO, CHOI, BEOM JIN, JANG, YONG HO
Принадлежит: KOREA INSTITUTE OF CERAMIC ENGINEERING AND TECHNOLOGY, SENBOOL INC.

A vibration energy harvesting device is disclosed. The vibration energy harvesting device comprises: a case including a bottom plate and at least one side wall vertically connected to the bottom plate; an elastic plate fixing unit fixed to an inner surface of the side wall; an elastic plate which has a plate shape with a predetermined length and configured so that one longitudinal end of the plate shape is fixed to the elastic plate fixing unit and the other flexible area of the plate shape is vertically elastically deformed; a piezoelectric element mounted at an end of the flexible area of the elastic plate and generating electric energy while being deformed with the elastic plate; a movable member coupled to the elastic plate to move in a longitudinal direction of the elastic plate; and an operation unit connected with the movable member to penetrate a side wall of the case, arranged in parallel to the longitudinal direction of the elastic plate, and configured to move the movable member ...

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Номер записи: 6
23-08-2017 дата публикации

COMPOSITE BISMUTH BASED LEAD-FREE PIEZOELECTRIC CERAMICS AND PREPARING METHOD THEREOF

Номер: KR101767130B1
Автор: CHO, JEONG HO, JEONG, YOUNG HUN, YUN, JI SUN, PARK, JUNG SOO, KIM, SEONG WON, PAIK, JONG HOO, JEONG, SOON JONG, LEE, JAE SHIN
Принадлежит: KOREA INSTITUTE OF CERAMIC ENGINEERING AND TECHNOLOGY

The present invention relates to composite bismuth based lead-free piezoelectric ceramics and a method for preparing composite bismuth based lead-free piezoelectric ceramics and, more specifically, to composite bismuth based lead-free piezoelectric ceramics having electric field induced strain in a low electric field, an actuator including the same and a method for manufacturing composite bismuth based lead-free piezoelectric ceramics. The composite bismuth based lead-free piezoelectric ceramics according to an embodiment of the present invention is obtained by replacing portion of Ti of (Bi, Na)TiO_3 with Fe or Al in a (Bi, Na)TiO_3-SrTiO_3 based solid solution made by adding SrTiO_3 to (Bi, Na)TiO_3 based host and has a Perovskite crystal structure, wherein the (Bi, Na)TiO_3-SrTiO_3 based solid solution may have a (1-x)[(Bi, Na)TiO_3]-xSrTiO_3 composition (where 0.20 <= x <= 0.24). COPYRIGHT KIPO 2017 (A1,A2,A3) Polarization (mu;C/cm^2) (B1,B2,B3) Electric field (kV/mm) ...

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Номер записи: 7
18-04-2016 дата публикации

COMPOSITE BISMUTH-BASED LEAD-FREE PIEZOELECTRIC CERAMICS AND ACTUATOR INCLUDING SAME

Номер: KR1020160041536A
Автор: YUN, JI SUN, CHO, JEONG HO, PARK, JUNG SOO, LEE, KU TAK, JEONG, YOUNG HUN, PAIK, JONG HOO
Принадлежит:

The present invention relates to composite bismuth-based (Bi-based) lead-free piezoelectric ceramics and an actuator including the same, and more particularly to composite bismuth-based lead-free piezoelectric ceramics having not only a low coercive electric field but also an excellent electric field-induced strain (EFIS), and an actuator including the same. Composite bismuth-based lead-free piezoelectric ceramics according to an embodiment of the present invention comprises a [Bi(Na,K)]TiO_3-based compound in which [Bi(Na,K)]TiO_3 and LaFeO_3 form a solid solution and which has a pseudo-cubic perovskite crystalline structure. In the [Bi(Na,K)]TiO_3-based compound, the total content of Bi may be higher than the stoichiometric mole ratio thereof, and the total content of Na and K may be lower than the stoichiometric mole ratio thereof. COPYRIGHT KIPO 2016 ...

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Номер записи: 8
03-02-2017 дата публикации

CHARGE AND DISCHARGE-TYPE ENERGY STORAGE APPARATUS USING CARBON DIOXIDE AND CARBON MONOXIDE AS FUEL

Номер: KR1020170012748A
Автор: SHIN, TAE HO, PAIK, JONG HOO, HONG, YOUN WOO
Принадлежит:

Disclosed is a charge and discharge-type energy storage apparatus using carbon dioxide and carbon monoxide as fuel, which is designed to completely seal one or more of CO_2 and CO by introducing a dual cylindrical structure and is also designed to enable charge and discharge to be performed based on a solid oxide fuel cell (SOFC) reaction and a solid oxide electrolyzer cell (SOEC) reaction by using one or more of gaseous CO_2 and CO. The charge and discharge-type energy storage apparatus using carbon dioxide and carbon monoxide as fuel according to the present invention comprises: a cylindrical cathode electrode which is disposed on one side; an anode electrode which is disposed on the other side spaced apart from the one side, and which communicates with the cathode electrode; a solid electrolyte membrane which is disposed between the cathode electrode and the anode electrode, and which communicates with the cathode electrode and the anode electrode; and a sealing tube which is mounted ...

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Номер записи: 9
17-05-2018 дата публикации

ENERGY HARVESTING SYSTEM INCLUDING PIEZOELECTRIC TRANSDUCER HAVING IMPROVED BANDWIDTH

Номер: WO2018088690A1
Автор: PAIK, Jong-Hoo, JEONG, Young-Hun, CHO, Jeong-Ho, KIM, Chang-Il
Принадлежит:

An energy harvesting system including a piezoelectric transducer having an improved bandwidth according to the present invention comprises: a case; a cantilever; an elastic member; and a piezoelectric transducer. The case includes a reception part inside. The cantilever is formed to have one end fixed to a wall surface of the reception part and the other end movable upward and downward by external vibration. The elastic member has one end fixed to an upper part of the cantilever and receives vibration transferred from the cantilever to generate a vibration displacement. The piezoelectric transducer is disposed on an upper part of the elastic member and is deformed depending on the vibration displacement of the elastic member thereby converting vibration energy into electrical energy.

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Номер записи: 10
03-09-2018 дата публикации

적외선 투과용 MgS 소결체 제조 방법

Номер: KR0101894070B1
Автор: 홍연우, 백종후, 김유비, 여서영
Принадлежит: 한국세라믹기술원

MgS 분말을 SPS(Spark Plasma Sintering) 또는 HP(Hot Press) 방법으로 소결함으로써, 제조 공정이 단순하여 쉽게 제조할 수 있을 뿐만 아니라 제조 단가를 확연히 낮출 수 있는 적외선 투과용 MgS 소결체 제조 방법에 대하여 개시한다. 본 발명에 따른 적외선 투과용 MgS 소결체 제조 방법은 (a) MgS 분말을 준비하는 단계; 및 (b) 상기 MgS 분말을 900 ~ 1,000℃에서 소결하여 MgS 소결체를 형성하는 단계;를 포함하는 것을 특징으로 한다.

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Номер записи: 11
04-07-2016 дата публикации

Bi-based lead-free piezoelectric ceramics comprising Lantanum and Actuator using the same

Номер: KR0101635991B1
Автор: 윤지선, 조정호, 이규탁, 박정수, 정영훈, 백종후
Принадлежит: 한국세라믹기술원

... 본 발명은 란타늄을 포함하는 Bi계 무연 압전 세라믹스 및 이를 포함하는 액츄에이터(actuator)에 관한 것으로, 더욱 상세하게는 낮은 항전계 값, 높은 전계유기 변형률(Electric Field Induced Strain; EFIS) 등의 우수한 전기적 특성을 갖는 란타늄을 포함하는 Bi계 무연 압전 세라믹스 및 이를 포함하는 액츄에이터에 관한 것이며, 본 발명의 실시예에 따른 란타늄을 포함하는 Bi계 무연 압전 세라믹스는 주요성분으로 Bi, Na, K, Ti, O를 포함하는 [Bi(Na,K)]TiO3계 모체에 란타늄을 포함하는 3성분계 산화물 산화물이 첨가되어 고용체를 이루고, 의사입방정(Pseudo-Cubic) 페로브스카이트(pervskite) 결정 구조를 가질 수 있다.

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Номер записи: 12
08-12-2016 дата публикации

METHOD FOR MANUFACTURING PZT-PVDF NANOFIBER COMPOSITE FILM

Номер: KR101683727B1
Автор: YUN, JI SUN, PAIK, JONG HOO, CHO, JEONG HO, JEONG, YOUNG HUN, PARK, CHUN KIL
Принадлежит: KOREA INSTITUTE OF CERAMIC ENGINEERING AND TECHNOLOGY

Disclosed is a method for manufacturing a lead zirconate titantate-polyvinylidene fluoride (PZT-PVDF) nanofiber composite film, capable of improving a piezoelectric performance by not only strictly controlling the mixture ratio of a mixture solvent of the PVDF and DMF + acetone, but optimizing an electric radiation condition and a content of PZT, and considerably decreasing a manufacturing cost through reducing the number of manufacturing processes by eliminating a high temperature sintering process by manufacturing the nanofiber composite using the electric radiation. Therefore, the PZT-PVDF nanofiber composite film manufactured by the method for manufacturing the PZT-PVDF nanofiber composite film according to the present invention has a micro structure in which the PVDF, which is a polymer, is impregnated with the PZT, which is a ceramic, and has 0.5 to 2.7 μC/cm^2 at 4kV/mm so that an excellent piezoelectric performance can be ensured. Also, the piezoelectric performance can be achieved ...

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Номер записи: 13
17-02-2017 дата публикации

압전 액츄에이터 및 이의 구동 방법

Номер: KR0101707923B1
Автор: 정영훈, 조정호, 백종후, 윤지선
Принадлежит: 한국세라믹기술원

... 본 발명에 따른 압전 액츄에이터 및 이의 구동 방법에서, 압전 액츄에이터는 서로 동일한 형태로 투영되도록 상하 방향으로 중첩되어 배치된 두 쌍의 제1 전극 패턴들, 제1 전극 패턴들 각각과 서로 맞물리는(interdigitated) 형태로 배치되고 서로 동일한 형태로 투영되도록 상하 방향으로 중첩되어 배치되며 제1 전극 패턴들에 인가된 전압과 반대 극성의 전압이 인가되는 두 쌍의 제2 전극 패턴들, 한 쌍의 제1 전극 패턴들 사이에 배치된 제1 압전체 및 제1 압전체와 마주하여 배치되고, 한 쌍의 제1 전극 패턴들 사이에 배치된 제2 압전체를 포함하고, 제1 압전체의 압전 활성 영역의 분극 방향은 제2 압전체의 압전 활성 영역의 분극 방향은 서로 반대이고, 두 쌍의 제1 전극 패턴들 및 두 쌍의 제 2 전극 패턴들에 교류 전압이 인가되며, 이 경우 교류 전압은 두 쌍의 제 1 전극 패턴들 모두에 동일 극성의 전압이 인가되고 두 쌍의 제2 전극 패턴들 모두에 서로 동일 극성의 전압이 인가된다.

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Номер записи: 14
25-06-2018 дата публикации

PIEZOELECTRIC ENERGY HARVESTOR AND PIEZOELETRIC SENSOR

Номер: KR101871106B1
Автор: JEONG, YOUNG HUN, CHO, JEONG HO, PAIK, JONG HOO, LEE, MIN SEON
Принадлежит: KOREA INSTITUTE OF CERAMIC ENGINEERING AND TECHNOLOGY

The present invention relates to a piezoelectric energy harvestor. More specifically, the present invention relates to the piezoelectric energy harvestor using piezoelectric characteristics by using a piezoelectric material sheet structure to convert vibration into electric energy and output electric energy, and a piezoelectric energy sensor measuring a size and a change of a voltage and using the electric energy. According to the present invention, the piezoelectric material sheet structure and the piezoelectric energy harvestor using the same can be applied to a wearable device or a sensor, IoT products, and an actuator. COPYRIGHT KIPO 2018 ...

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Номер записи: 15
12-09-2016 дата публикации

PIEZOELECTRIC ACTUATOR AND OPERATING METHOD THEREOF

Номер: KR1020160106349A
Автор: JEONG, YOUNG HUN, CHO, JEONG HO, PAIK, JONG HOO, YUN, JI SUN
Принадлежит:

According to the present invention, a piezoelectric actuator comprises: a piezoelectric body; a pair of electrode patterns which are placed with an interdigitated shape on a first side surface of the piezoelectric body, and to which voltages of opposite polarities are applied, respectively; and a pair of electrode patterns which are placed with an interdigitated shape on a second side surface which is opposite to the first side surface, to face the electrode patterns on the first side surface with a projected shape, and to which voltages of opposite polarities are applied, respectively. The polarization direction of a first piezoelectric active area of the first side surface is opposite to the polarization direction of a second piezoelectric active area of the second side surface. The voltages of the same polarity are applied to the electrode patterns that face each other with the projected shape based on the piezoelectric body. The present invention aims to provide the piezoelectric actuator ...

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Номер записи: 16
06-12-2016 дата публикации

PIEZOELECTRIC POWER GENERATION APPARATUS

Номер: KR101682960B1
Автор: JEONG, YOUNG HUN, PAIK, JONG HOO, CHO, JEONG HO, YUN, JI SUN, KIM, CHANG IL
Принадлежит: KOREA INSTITUTE OF CERAMIC ENGINEERING AND TECHNOLOGY

The present invention relates to a piezoelectric power generation apparatus, and more particularly to a piezoelectric power generation apparatus, which has a structure enabling a piezoelectric element to generate power in the 15 mode. According to an embodiment of the present invention, a piezoelectric power generation apparatus comprises a first elastic member, a piezoelectric element, and a second elastic member which are sequentially stacked on a top surface of a structure. In this case, the first and second elastic members have a shape of a long stick. One end of each of the first and second elastic members is attached to the top surface of the structure, and the other end of each of the first and second elastic members is disposed not to be supported by the structure. The ends of the first and second elastic members, which are not supported by the structure, extend in different directions, and masses are attached to the ends of the first and second elastic members, which are not supported ...

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Номер записи: 17
07-06-2017 дата публикации

POROUS NANOFIBER COMPOSITE USING ELECTROSPINNING METHOD AND METHOD OF MANUFACTURING SAME

Номер: KR1020170061738A
Автор: YUN, JI SUN, PAIK, JONG HOO, CHO, JEONG HO, JEONG, YOUNG HUN
Принадлежит:

Disclosed are a porous nanofiber composite using an electrospinning method which is excellent in flexibility and handling properties and is capable of improving adsorption performance, thereby being suitable for using as an actuator, and a method for manufacturing the same. The porous nanofiber composite using an electrospinning method according to the present invention includes a porous material and a polymer resin layer surrounding the surface of the porous material. A part of the polymer resin layer is removed by etching, so a part of the porous material is exposed to the outside. COPYRIGHT KIPO 2017 ...

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Номер записи: 18
03-05-2016 дата публикации

ZnO-BASED VARISTOR COMPOSITION

Номер: KR101617547B1
Автор: HONG, YOUN WOO, PAIK, JONG HOO, KIM, SEI KI, LEE, YOUNG JIN, KIM, YOU BI
Принадлежит: KOREA INSTITUTE OF CERAMIC ENGINEERING AND TECHNOLOGY, VITZRO MATERIALS CO., LTD.

In the present invention, disclosed is a ZnO-based varistor composition which includes ZnO, Zn2BiVO6, Co oxide or Mn oxide but does not include Bi2O3, V2O5, Pr6O11 and Pr2O3. The composition also includes one or more of groups comprising Ni oxide, Sb oxide, Cr oxide and Ca oxide. Such ZnO-based varistor composition of the present invention replaces the existing Bi2O3, V2O5 and Pr-based composition ingredients, has a high nonlinear coefficient and a low leakage current, and reduces manufacturing costs. COPYRIGHT KIPO 2016 (AA) Example ...

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Номер записи: 19
06-12-2016 дата публикации

PIEZOELECTRIC POWER GENERATING DEVICE

Номер: KR101682961B1
Автор: JEONG, YOUNG HUN, PAIK, JONG HOO, CHO, JEONG HO, YUN, JI SUN, KIM, CHANG IL
Принадлежит: KOREA INSTITUTE OF CERAMIC ENGINEERING AND TECHNOLOGY

The present invention relates to a piezoelectric power generating device, and more particularly, to a piezoelectric power generating device capable of increasing a power generation amount by including a structure to perform the generation of a 15 mode of a piezoelectric element. The piezoelectric power generating device according to an embodiment of the present invention includes a first elastic member, the piezoelectric element, and a second elastic member which are successively laminated on the upper side of the structure. The piezoelectric element includes a piezoelectric body, first electrode patterns, and second electrode patterns. The first elastic member and the second elastic member have a long rod shape. Energy harvesting by the piezoelectric element is performed by using vibration energy by a mass body and the vibration of the structure. COPYRIGHT KIPO 2016 (A1,A2) Electrode pattern (BB) Additional piezoelectric element ...

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Номер записи: 20
07-12-2016 дата публикации

발전 장치 및 이를 이용한 자가 발전식 센싱 장치

Номер: KR0101682911B1
Автор: 정영훈, 백종후, 조정호, 김창일
Принадлежит: 한국세라믹기술원

... 압전 액츄에이터(actuator)를 이용한 발전 장치 및 이를 이용한 자가 발전식 센싱 장치에 관하여 개시한다. 본 발명의 일 측면에 따르면, 진동체의 표면에 부착되는 다수의 압전막을 구비하는 압전막 어레이와, 상기 압전막에 타격을 가해 전기에너지를 생성하는 압전막 타격구조물을 포함하며, 상기 압전막 타격구조물에 내장된 스프링 코일의 수축 및 복원에 따라 전자기 유도 발전으로 전기에너지를 생성하는 자기유닛을 더 구비하는 발전 장치를 제공할 수 있다.

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Номер записи: 21
04-07-2016 дата публикации

ZnS NANO POWDER PELLET HAVING CUBIC STRUCTURE FOR TRANSMITTING INFRARED RAY AND METHOD FOR MANUFACTURING SAME

Номер: KR1020160077320A
Автор: PAIK, JONG HOO, HONG, YOUN WOO, KIM, SEI KI, LEE, YOUNG JIN, KIM, YOU BI
Принадлежит:

Disclosed are a ZnS nano powder pellet having a cubic structure for transmitting an infrared ray and a method for manufacturing the same, capable of easily manufacturing the ZnS nano powder pellet by simplifying the manufacturing processes, and improving a property of a material such as relative density and transmittance of the infrared ray while saving the manufacturing cost, wherein ZnO nano powder is synthesized by hydrothermal process, which is one of solution processes, using ZnSO_4·7H_2O and Na_2S·9H_2O, and sintered by either one of spark plasma sintering (SPS) and hot press (HP)· According to the present invention, the method for manufacturing the ZnS nano powder pellet for transmitting the infrared ray having the cubic structure includes the steps of: (a) mixing ZnSO_4·7H_2O and Na_2S·9H_2O into a solvent in a weight ratio of more than 1:1 to less than 1:1.3 and synthesizing the ZnSO_4·7H_2O and Na_2S·9H_2O by a hydrothermal process for 1-24 hours at a temperature of 100-240°C; ...

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Номер записи: 22
03-12-2015 дата публикации

PIEZOELECTRIC ENERGY HARVESTING APPARATUS USING CRANK ROD AND GEAR AND SELF GENERATING SENSOR USING THEREOF

Номер: KR0101574109B1
Автор: 정영훈, 백종후, 조정호, 김창일, 최범진, 장용호, 조영봉, 박신서
Принадлежит: 한국세라믹기술원, ㈜센불

... 압전 액츄에이터(actuator)를 이용하며 크랭크로드와 기어를 이용한 진동구조물용 압전 에너지 하베스팅 장치 및 이를 이용한 자가 발전식 센싱 장치에 관하여 개시한다. 본 발명의 일 실시예에 따르면, 진동구조물의 측면에 구비되어 진동구조물의 횡 방향 진동을 전달받는 캔틸레버보와, 캔틸레버보의 돌출된 자유단에 일단부가 연결되며 캔틸레버보의 횡 방향 진동에 의해 구동하는 크랭크로드와, 크랭크로드의 타단부에 연결되어 크랭크로드의 구동에 연동하여 회전하는 제1톱니기어와, 제1톱니기어보다 큰 톱니수를 가지며, 제1톱니기어에 치합되어 회전하는 제2톱니기어와, 회전하는 제2톱니기어의 톱니로부터 타격을 받아 변형되어 전기 에너지를 생성하는 복수 개의 압전부재를 포함하는 크랭크로드와 기어를 이용한 압전 하베스팅 장치를 제공한다.

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Номер записи: 23
04-01-2016 дата публикации

PIEZOELECTRIC ENERGY HARVESTING APPARATUS AND SELF GENERATING SENSOR USING THE SAME

Номер: KR0101582281B1
Автор: 정영훈, 백종후, 조정호, 김창일
Принадлежит: 한국세라믹기술원

... 압전 액츄에이터(actuator)를 이용하여 열악한 진동 조건 하에서 진동체의 표면에 부착하여 필요한 전기에너지를 수집할 수 있는 압전 에너지 하베스팅 장치 및 이를 이용한 자가 발전식 센싱 장치에 관하여 개시한다.본 발명의 일 실시예에 따르면, 다수 개의 압전막이 매트릭스 형태로 배열되며, 진동체의 표면에 부착되는 압전막 어레이를 포함하며, 진동체의 미세 변위 진동에 연동하여 다수 개의 압전막에 대해 개별 또는 동시에 타격을 가하여 압전막을 통해 전기에너지를 생성하는 압전 에너지 하베스팅 장치를 제공한다.

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Номер записи: 24
01-08-2018 дата публикации

METHOD FOR MANUFACTURING MgS PELLETS FOR INFRARED TRANSMITTANCE

Номер: KR1020180086535A
Автор: HONG, YOUN WOO, PAIK, JONG HOO, KIM, YOU BI, YEO, SEO YEONG
Принадлежит:

Disclosed is a method for manufacturing MgS pellets for infrared transmittance, in which a MgS powder is sintered by spark plasma sintering (SPS) or a hot press (HP) method, and thus the manufacturing process is simple to easily manufacture the MgS pellets and the manufacturing cost can be significantly lowered. The method for manufacturing the MgS pellets for the infrared transmittance according to the present invention comprises the following steps: (a) preparing the MgS powder; and (b) sintering the MgS powder at the temperature of 900 to 1,000°C to form the MgS pellets. COPYRIGHT KIPO 2018 ...

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Номер записи: 25
06-02-2018 дата публикации

LAYERED PIEZOELECTRIC ELEMENT

Номер: KR1020180012557A
Автор: JEONG, YOUNG HUN, CHO, JEONG HO, YUN, JI SUN, PAIK, JONG HOO, LEE, MIN SEON
Принадлежит:

According to the present invention, a layered piezoelectric element is disclosed. The layered piezoelectric element comprises: at least one piezoelectric material layer; at least two electrode layers layered on upper and lower surfaces of the piezoelectric material layer; and an electrode pad extended from one side positioned on the same surface of each of the electrode layers. By using the piezoelectric element, an additional electrode exclusive for polarization of the piezoelectric element is unnecessary, thereby easily manufacturing the piezoelectric element and easily performing a process of applying polarization voltage and driving voltage. According to the present invention, the piezoelectric element can be applied to an actuator, a sensor or an energy harvester, etc. COPYRIGHT KIPO 2018 (110) Electrode layer (120) Piezoelectric material layer (130) Electrode pad ...

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Номер записи: 26
04-07-2016 дата публикации

Bismuth-based lead-free piezoelectric ceramics and Actuator using the same

Номер: KR0101635939B1
Автор: 윤지선, 조정호, 이규탁, 박정수, 정영훈, 백종후
Принадлежит: 한국세라믹기술원

... 본 발명은 비스무스계 무연 압전 세라믹스 및 이를 포함하는 액츄에이터(actuator)에 관한 것으로, 더욱 상세하게는 낮은 인가 전압에서 높은 전계유기 변형률(Electric Field Induced Strain; EFIS) 특성이 요구되는 스마트 액츄에이터(smart actuator)에 적용할 수 있도록 낮은 항전계 값을 갖는 비스무스계 무연 압전 세라믹스 및 이를 포함하는 액츄에이터(actuator)에 관한 것이다.본 발명의 실시예에 따른 비스무스계 무연 압전 세라믹스는 주요성분으로 Bi, Na, K, Ti, O를 포함하는 [Bi(Na,K)]TiO3계 모체에 BiFeO3가 첨가되어 고용체를 이루며, 의사-입방정(Pseudo-cubic) 페로브스카이트(pervskite) 결정 구조를 가질 수 있다.

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Номер записи: 27
04-07-2016 дата публикации

Composite bismuth-based lead-free piezoelectric ceramics and Actuator using the same

Номер: KR0101635988B1
Автор: 윤지선, 조정호, 박정수, 이규탁, 정영훈, 백종후
Принадлежит: 한국세라믹기술원

... 본 발명은 복합 비스무스(Bi)계 무연 압전 세라믹스 및 이를 포함하는 액츄에이터(actuator)에 관한 것으로, 더욱 상세하게는 항전계가 낮을 뿐만 아니라 전계유기 변형률(Electric Field Induced Strain; EFIS)이 우수한 복합 비스무스계 무연 압전 세라믹스 및 이를 포함하는 액츄에이터에 관한 것이다. 본 발명의 실시예에 따른 복합 비스무스계 무연 압전 세라믹스는 [Bi(Na,K)]TiO3와 LaFeO3가 고용체를 이루며, 의사입방정 페로브스카이트(Perovskite) 결정 구조를 갖는 [Bi(Na,K)]TiO3계 화합물을 포함하고, 상기 [Bi(Na,K)]TiO3계 화합물에서 Bi의 함량이 화학양론 함량보다 많고, Na와 K의 전체 함량이 화학양론 함량보다 적을 수 있다.

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Номер записи: 28
22-08-2018 дата публикации

METHOD FOR MANUFACTURING NANOFIBER COMPOSITE FILM AND STRUCTURE MONITORING SENSOR HAVING SAME

Номер: KR101890259B1
Автор: YUN, JI SUN, CHO, JEONG HO, PAIK, JONG HOO, JI, SANG HYUN
Принадлежит: KOREA INSTITUTE OF CERAMIC ENGINEERING AND TECHNOLOGY

A method for manufacturing a nanofiber composite film capable of enhancing performance of a sensor attached to a structure through application of a nanofiber composite film maximizing a piezoelectric efficiency by a poling process and a structure monitoring sensor are disclosed. As a result, when the structure monitoring sensor according to the present invention is utilized as an energy harvesting system or a generator system, the structure monitoring sensor also can be applied as a powerless ceramic module for monitoring the safety diagnosis of a structure. COPYRIGHT KIPO 2018 (AA) Start (BB) End (S110) Formation of a ceramic-polymer composite solution (S120) Formation of a ceramic-polymer film (S130) Formation of a nanofiber composite film (S140) Polling ...

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Номер записи: 29
09-03-2016 дата публикации

BISMUTH-BASED LEAD-FREE PIEZOELECTRIC CERAMIC AND ACTUATOR USING SAME

Номер: KR1020160026185A
Автор: YUN, JI SUN, CHO, JEONG HO, LEE, KU TAK, PARK, JUNG SOO, JEONG, YOUNG HUN, PAIK, JONG HOO
Принадлежит:

The present invention relates to a bismuth-based lead-free piezoelectric ceramic and an actuator using the same. More particularly, the present invention relates to a bismuth-based lead-free piezoelectric ceramics which has a low coercive electric field which can be applied to a smart actuator required for a high electric field induced strain (EFIS) in a low applied voltage, and an actuator using the same. The bismuth-based lead-free piezoelectric ceramic according to the embodiment of the present invention forms a solid solution by adding BiFeO3 to [Bi(Na,K)]TiO_3 based body including Bi, Na, K, Ti, and O as main elements. The bismuth-based lead-free piezoelectric ceramic may have a pseudo-cubic pervskite crystal structure. COPYRIGHT KIPO 2016 ...

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Номер записи: 30
01-02-2018 дата публикации

ZnO-BASED VARISTOR COMPOSITION, MANUFACTURING METHOD THEREOF AND VARISTOR THEREOF

Номер: KR1020180011370A
Автор: HONG, YOUN WOO, PAIK, JONG HOO, KIM, YOU BI
Принадлежит:

The present invention discloses a ZnO-based varistor composition excluding the content of Bi_2O_3, V_2O_5, Pr_6O_11 and Pr_2O_3. The composition according to the present invention contains 98.0 to 99.9 at% of ZnO, 0.1 to 2 at% of BiVO_4, 0.2 to 3 at% of Co_3O_4 or 0.2 to 3 at% of Mn_3O_4. Accordingly, the present invention can obtain a high nonlinear coefficient and a low leakage current and reduce manufacturing costs. COPYRIGHT KIPO 2018 (AA) Embodiment ...

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Номер записи: 31
02-07-2015 дата публикации

PIEZOELECTRIC ENERGY HARVESTING APPARATUS USING CRANK ROD AND GEAR AND SELF GENERATING SENSOR USING SAME

Номер: KR1020150074590A
Автор: JEONG, YOUNG HUN, PAIK, JONG HOO, CHO, JUNG HO, KIM, CHANG IL, CHOI, BEOM JIN, JANG, YONG HO, CHO, YOUNG BONG, PARK, SHIN SEO
Принадлежит:

Disclosed are a piezoelectric energy harvesting apparatus for a vibration structure using a crank rod and a gear and a self generating sensor using the same. According to one embodiment of the present invention, provided is the piezoelectric energy harvesting apparatus using the crank rod and the gear which includes a cantilever beam which is formed on the side of the vibration structure and receives a transverse vibration of the vibration structure, the crank rod whose one end is connected to a free terminal of the cantilever beam which protrudes and which is driven by the transverse vibration of the cantilever, a first sawtooth gear which is connected to the other end of the crank rod and is rotated by the connection of the driving of the crank rod, a second sawtooth gear which has the number of sawtooth which is greater than the number of sawtooth of the second sawtooth gear and is rotated by being engaged with the first sawtooth gear, and a plurality of piezoelectric members which generate ...

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Номер записи: 32
10-08-2017 дата публикации

PIEZOELECTRIC TRANSDUCER FOR DIRECTIONAL SPEAKER AND DIRECTIONAL SPEAKER INCLUDING SAME

Номер: KR101765000B1
Автор: JEONG, YOUNG HUN, CHO, JEONG HO, YUN, JI SUN, PAIK, JONG HOO
Принадлежит: KOREA INSTITUTE OF CERAMIC ENGINEERING AND TECHNOLOGY

Provided are a piezoelectric transducer for a directional speaker and a directional speaker including the same. The piezoelectric transducer for a directional speaker comprises: a base substrate; a plurality of piezoelectric elements placed on the base substrate to be spaced from each other and including at least one piezoelectric layer deformed to expand or contract in a direction perpendicular to the surface of the base substrate by an electrical signal applied to both opposite ends vertically facing each other; and a flexible film covering the base substrate entirely to be in contact with each of the piezoelectric elements and oscillating vertically in clearances between the piezoelectric elements. Therefore, it is possible to maximize the sound pressure and minimize damage caused by an external force when the piezoelectric transducer is manufactured or used. The piezoelectric transducer for a directional speaker according to the present invention is manufactured by arraying the piezoelectric ...

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Номер записи: 33
03-02-2017 дата публикации

ELECTROCHEMICAL AND MULTI-FUNCTIONAL SOLID OXIDE TUBE UNIT BATTERY IN SHAPE OF FUNCTIONALLY DISTRIBUTED TRIPLE PIPE

Номер: KR1020170012749A
Автор: SHIN, TAE HO, PAIK, JONG HOO
Принадлежит:

Disclosed is an electrochemical and multi-functional solid oxide tube unit battery in a shape of a functionally distributed triple pipe which not only reduces a volume as there is no need to add a separate heating device by mounting heat wires to a sealed tube, but also improves durability of a sealing part which is exposed to a relatively low temperature for a long time due to the temperature gradient between the heating part and the sealing part. According to the present invention, the electrochemical and multi-functional solid oxide tube unit battery in the shape of the functionally distributed triple pipe comprises: an annular type of a unit cell where fuel passes; a sealing tube to seal the unit cell; and heat wires which are mounted on the sealing tube to heat the unit cell. COPYRIGHT KIPO 2017 ...

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Номер записи: 34
14-04-2016 дата публикации

PIEZO-ELECTRIC FIBER COMPOSITE STRUCTURE AND PIEZO-ELECTRIC FILM SPEAKER USING THEREOF

Номер: KR0101612456B1
Автор: 정영훈, 조정호, 백종후, 윤지선
Принадлежит: 한국세라믹기술원

... 본 발명은 압전 파이버 컴포지트 구조체에 관한 것이고, 또한 이를 이용한 압전 스피커에 관한 것이다. 본 발명의 일 실시예에 따른 압전 파이버 컴포지트 구조체는, 복수의 압전 세라믹 로드가 서로 옆으로 나란히 배치되어 있으며, 나란히 배치된 상기 복수의 압전 세라믹 로드 사이에는 접착제가 배치되어 복수의 압전 세라믹 로드가 서로 연결되어 있고, 상기 압전 세라믹 로드 및 접착제로 이루어진 이종 소재 복합체의 일면 또는 양면에 전극 패턴이 형성되어 있다. 본 발명의 압전 파이버 컴포지트 구조체는 압전 스피커, 액츄에이터(actuator) 등에 응용되어 이용 가능하다.

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Номер записи: 35
04-07-2016 дата публикации

Lead-free piezoelectric ceramics and Actuator using the same

Номер: KR0101635993B1
Автор: 윤지선, 조정호, 박정수, 이규탁, 정영훈, 백종후
Принадлежит: 한국세라믹기술원

... 본 발명은 무연 압전 세라믹스 및 이를 포함하는 액츄에이터(actuator)에 관한 것으로, 상세하게는 스마트 액츄에이터(smart actuator) 적용을 위한 페로브스카이트 구조를 갖는 무연 압전 세라믹스 및 이를 포함하는 액츄에이터(actuator)에 관한 것이다.본 발명의 실시예에 따른 무연 압전 세라믹스는 (Bi,Na)TiO3와 (Bi,K)TiO3가 고용체를 이루며, 페로브스카이트(Perovskite) 결정 구조를 갖는 [Bi(Na,K)]TiO3계 화합물을 포함하고, 상기 [Bi(Na,K)]TiO3계 화합물에서 Bi의 함량이 화학양론 함량보다 많고, Na와 K의 전체 함량이 화학양론 함량보다 적을 수 있다.

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Номер записи: 36
15-12-2017 дата публикации

PIEZOELECTRIC TRANSDUCER AND DIRECTIVE SPEAKER HAVING SAME

Номер: KR101809714B1
Автор: JEONG, YOUNG HUN, PARK, WOON IK, CHO, JEONG HO, PAIK, JONG HOO, LEE, MIN SEON, JE, YOUNG HO, LIM, YONG MUK
Принадлежит: KOREA INSTITUTE OF CERAMIC ENGINEERING AND TECHNOLOGY, JDSOLUTION CO., LTD.

According to the present invention, a piezoelectric transducer and a directional speaker having the same are provided. The piezoelectric transducer comprises a plurality of piezoelectric units separately arranged on a base substrate. Each of the piezoelectric units includes: a pair of piezoelectric devices separately arranged on a base material arranged on the base substrate to face each other in a first direction, and extended in a second direction different from the first direction; and a flexible film. Accordingly, a sound pressure can be maximized, and a damage due to an external force during manufacturing or using can be minimized. According to the present invention, the piezoelectric transducer for the directional speaker is manufactured by arranging piezoelectric devices which can be used as piezoelectric actuators. COPYRIGHT KIPO 2018 ...

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Номер записи: 37
10-03-2016 дата публикации

METHOD FOR MANUFACTURING NANOFIBER COMPOSITE USING ELECTROSPINNING

Номер: KR1020160027594A
Автор: YUN, JI SUN, PAIK, JONG HOO, CHO, JUNG HO, PARK, CHUN KIL
Принадлежит:

Disclosed is a method for manufacturing a nanofiber composite using electrospinning which requires no additional sintering process as PZT- polyvinylidene fluoride (PVDF) nanofibers are manufactured by electrospinning of a PZT-PVDF composite solution in which PDVF and sintered PZT powder are mixed with a mixed solvent. Particularly, the PZT-PVDF nanofibers manufactured by electrospinning have ferroelectricity, pyroelectricity, piezoelectricity, and flexibility, thereby being widely used as a material for key components for a mobile communication device using dielectric properties, a micro harvesting system and an actuator using the piezoelectricity, an infrared sensor and an infrared sensing device using the pyroelectricity, etc. The method for manufacturing a nanofiber composite using electrospinning in accordance with the present invention comprises the following steps: (a) forming a PZT-PVDF composite solution by adding PVDF to a mixed solvent and stirring, and then mixing the same with ...

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Номер записи: 38
14-12-2015 дата публикации

METHOD OF MANUFACTURING ZnS SINTERED BODY FOR LONG WAVE INFRARED TRANSMITTANCE

Номер: KR101576891B1
Автор: PAIK, JONG HOO, HONG, YOUN WOO, KIM, SEI KI, LEE, YOUNG JIN, KIM, YOU BI
Принадлежит: JINOID CO., LTD., KOREA INSTITUTE OF CERAMIC ENGINEERING AND TECHNOLOGY

Disclosed is a ZnS sintered body for long wave infrared transmittance and a method of manufacturing the same which improves properties such as a relative density, transmittance, and a refractive index by acquiring ZnS powder with hydrothermal synthesis, which is a method of a liquid process, using ZnSO_4·7H_2O and Na_2S·9H_2O and sintering the ZnS powder with a spark plasma sintering (SPS) method. According to the present invention, the method of manufacturing the ZnS sintered body for long wave infrared transmittance comprises: (a) a step of mixing ZnSO_4·7H_2O and Na_2S·9H_2O with a solvent to perform hydrothermal synthesis at 120-260°C (b) a step of filtering and drying a reactant on which the hydrothermal synthesis is performed to acquire ZnS powder; and (c) a step of sintering the acquired ZnS powder with the SPS method at 900-1000°C to form ZnS sintered body. COPYRIGHT KIPO 2016 (AA) Start (BB) End (S110) Hydrothermal synthesis (S120) Filtering/drying (S130) Sintering ...

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Номер записи: 39
20-06-2017 дата публикации

METHOD OF MANUFACTURING NANOFIBER COMPOSITE FILM USING LEAD-FREE PIEZOELECTRIC CERAMIC

Номер: KR101748858B1
Автор: YUN, JI SUN, CHO, JEONG HO, JEONG, YOUNG HUN, PAIK, JONG HOO, JI, SANG HYUN
Принадлежит: KOREA INSTITUTE OF CERAMIC ENGINEERING AND TECHNOLOGY

Disclosed is a method of manufacturing a nanofiber composite film using lead-free piezoelectric ceramic. According to the present invention, the nanofiber composite film is not harmful to a human body and has high piezoelectric performance at low voltage since BNT-based lead-free piezoelectric ceramic powder not containing lead, which is regulated as an environmentally harmful substance, is used. Thus, the nanofiber composite film may be utilized as various electronic devices such as an actuator, a frequency output sensor, an energy harvester, a piezoelectric transducer, and the like. The method of manufacturing the nanofiber composite film using the lead-free piezoelectric ceramic comprises the steps of: (a) making a ceramic-polymer composite solution by adding the lead-free piezoelectric ceramic powder to a solvent after adding PVDF to the solvent and mixing the solvent; (b) forming a ceramic-polymer nanofiber film by performing electrospinning of the ceramic-polymer composite solution ...

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Номер записи: 40
16-02-2017 дата публикации

압전 액츄에이터 및 이의 구동 방법

Номер: KR0101707521B1
Автор: 정영훈, 조정호, 백종후, 윤지선
Принадлежит: 한국세라믹기술원

... 본 발명에 따른 압전 액츄에이터 및 이의 구동 방법에서, 압전 액츄에이터는 압전체, 압전체의 제1 측면에 서로 맞물리는(interdigitated) 형태로 배치되고 서로 반대 극성의 전압이 인가되는 한 쌍의 전극 패턴들 및 제1 측면의 반대 측면인 제2 측면에 제1 측면의 전극 패턴들과 투영된 형태로 마주하고 서로 맞물리는 형태로 배치되며 서로 반대 극성의 전압이 인가되는 한 쌍의 전극 패턴들을 포함하고, 제1 측면의 제1 압전 활성 영역의 분극 방향은 제2 측면의 제2 압전 활성 영역의 분극 방향과 반대이며, 압전체를 기준으로 서로 투영된 형태로 마주하는 전극 패턴들에는 동일 극성의 전압이 인간된다.

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Номер записи: 41
22-04-2010 дата публикации

CERAMIC COMPOSITION FOR LEAD-FREE PTC(POSITIVE TEMPERATURE COEFFICIENT OF RESISTANCE) THERMISTOR AND THE PTC CERAMIC THERMISTOR PREPARED USING THE SAME

Номер: KR2010044534A1
Автор: PAIK, Jong Hoo, LEE, Young Jin, JEONG, Young Hun, KIM, Chul Min, LEE, Woo Young, CHOI, Jin Soo
Принадлежит:

The present invention relates to a ceramic composition for a lead-free PTC thermistor which does not contain a lead (Pb) component and has a low specific resistance value at room temperature and a Curie temperature (Tc) of 130℃ or more. The ceramic composition for a lead free PTC thermistor according to the present invention comprises any one selected from formulas 1-4. [Formula 1] Ba1-x(Bi0.5 Na0.5)xTiO3 + y mol% M1Ow [Formula 2] Ba1-x(Bi0.5Na0.5)xTiO3 + y mol% M12Ow + z wt% M2O2 [Formula 3] Ba1-x(Bi0.5K0.5)xTiO3 + y mol% M1Ow [Formula 4] Ba1-x(Bi0.5K0.5)xTiO3 + y mol% M1Ow + z wt% M2O2 (In formulas 1-4, 0.01≤x≤0.05, 0.00＜y≤0.40, 0.00＜z≤0.40; M1 is one or more elements selected from the group consisting of Nb, Sb, La, Y; M2 is Mn; and w is 3 when M1 is a trivalent element and is 5 when M1 is a pentavalent element.) In addition, the invention comprises a ceramic composition for a PTC thermistor of the following formula 5 in which Na0.5K0.5NbO3(NKN) is formed as a solid solution of BaTiO3 ...

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Номер записи: 42
12-08-2015 дата публикации

PIEZOELECTRIC ENERGY HARVESTING APPARATUS ATTACHABLE TO SURFACE OF VIBRATOR, AND SELF POWER-GENERATING SENSOR BY USING SAME

Номер: KR1020150091822A
Автор: JEONG, YOUNG HUN, PAIK, JONG HOO, CHO, JUNG HO, KIM, CHANG IL
Принадлежит:

Disclosed is a piezoelectric energy harvesting apparatus which is attached to the surface of a vibrator under a poor vibration condition and collects required electric energy, and a self generating sensor using the same. According to an embodiment of the present invention, a piezoelectric energy harvesting apparatus has a plurality of piezoelectric layers arranged in the shape of a matrix, includes a piezoelectric layer array attached to the surface of a vibrator, and generates electric energy through the piezoelectric layer by applying an impact to the piezoelectric layers individually or simultaneously in association with the micro-displacement vibration of the vibrator. COPYRIGHT KIPO 2015 ...

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Номер записи: 43
23-11-2017 дата публикации

PATCH TYPE PIEZOELECTRIC TRANSDUCER AND VIBRATION SENSOR NODE USING SAME

Номер: KR1020170128654A
Автор: CHOI, BEOM JIN, PARK, SHIN SEO, JANG, YONG HO, PAIK, JONG HOO, JEONG, YOUNG HUN, KIM, CHANG IL
Принадлежит:

The present invention relates to a patch type piezoelectric transducer capable of being installed on various surfaces and a vibration sensor node using the same. According to the present invention, the patch type piezoelectric transducer comprises an adhesive layer, a first electrode layer, a piezoelectric thin film layer, and a second electrode layer. The adhesive layer is detachably attached on one surface of an object to be bonded, the first electrode layer is disposed in an upper part of the adhesive layer, the piezoelectric thin film layer is formed by coating piezoelectric paint, which is manufactured by mixing a lead zirconate titanate (PZT)-based piezoelectric ceramic powder and a resin, on an upper part of the first electrode layer. The vibration sensor node comprises a vibration plate, the piezoelectric transducer, a sensing circuit, a wireless communication module, and a battery. The vibration plate has an adhesive layer formed on a lower surface to be attached on one surface ...

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Номер записи: 44
10-02-2011 дата публикации

FOOTHOLD-TYPE PIEZOELECTRIC GENERATOR UNIT AND PIEZOELECTRIC GENERATOR SYSTEM INCLUDING SAME

Номер: KR2011016592A1
Автор: HAN, Woo-Seock, PAIK, Jong Hoo, LEE, Young Jin, JEONG, Young Hun, KIM, Chang-Il, PARK, Shin-Seo
Принадлежит:

The present invention relates to a foothold-type piezoelectric generator unit and a piezoelectric generator system including the same. According to the present invention, the piezoelectric generator system comprises: at least one piezoelectric generator unit which includes unit piezoelectric sections, in which piezoelectric layers are formed on at least one surface of an elastic substrate and cushion layers are formed on both sides of the elastic substrate, an electrode substrate on which one or more unit piezoelectric sections are arranged, and an insulating substrate for supporting the electrode substrate; at least one rectifying circuit which converts AC power that is generated by the transformation of the piezoelectric layers of the piezoelectric generator unit into DC power; and an elastic mat section which covers the piezoelectric generator unit.

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Номер записи: 45
09-11-2015 дата публикации

METHOD FOR PRODUCING CARBON-BASED POLYMER COMPOSITE, CARBON-BASED POLYMER COMPOSITE PRODUCED THEREBY, AND ELECTRODE USING SAME

Номер: KR1020150125189A
Автор: YUN, JI SUN, CHO, JEONG HO, PAIK, JONG HOO
Принадлежит:

The present invention relates to a method for producing a carbon-based polymer composite. A production process is simplified, so economical feasibility is ensured and basic functions of a carbon material are not limited but maintained. Accordingly, the same may be usefully applied to an electrode device. In particular, electrolization of irregular raw ingredients containing alkali metals such as lithium or the like can be effectively and stably performed. Alkali metal-containing carbonaceous, one or more olefin monomers, and anioinic initiators are included and polymerized. Provided are a method for producing a carbon polymer composite, a carbon-based polymer composite produced thereby, and an electrode using the same. COPYRIGHT KIPO 2016 ...

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Номер записи: 46
16-12-2015 дата публикации

PIEZOELECTRIC FIBER COMPOSITE STRUCTURE

Номер: KR101577961B1
Автор: JEONG, YOUNG HUN, CHO, JEONG HO, PAIK, JONG HOO, YUN, JI SUN
Принадлежит: KOREA INSTITUTE OF CERAMIC ENGINEERING AND TECHNOLOGY

The present invention relates to a piezoelectric fiber composite structure using a conductive adhesive electrode. The piezoelectric fiber composite structure maximizes a polling effect by using the conductive adhesive electrode in order to increase piezoelectric efficiency. The piezoelectric fiber composite structure can be used by being applied to a piezoelectric speaker, an actuator, etc. COPYRIGHT KIPO 2016 (AA) Piezoelectric ceramic (BB) Conductive polymer (CC) Cover layer ...

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Номер записи: 47
09-11-2016 дата публикации

큐빅 구조를 갖는 적외선 투과용 ZnS 나노분말 소결체 및 그 제조 방법

Номер: KR0101673872B1
Автор: 백종후, 홍연우, 김세기, 이영진, 김유비
Принадлежит: 한국세라믹기술원

ZnSO4ㆍ7H2O와 Na2Sㆍ9H2O를 이용하여 액상 공정(Solution Process) 중 한 방법인 수열합성법으로 ZnO 나노분말을 획득한 후, SPS(Spark Plasma Sintering) 또는 HP(Hot Press) 방법으로 소결함으로써, 제조 공정이 단순하여 쉽게 제조할 수 있을 뿐만 아니라 제조 단가를 낮추면서도, 상대밀도, 적외선 광투과도 등의 물성을 향상시킬 수 있는 큐빅 구조를 갖는 적외선 투과용 ZnS 나노분말 소결체 및 그 제조 방법에 대하여 개시한다. 본 발명에 따른 큐빅 구조를 갖는 적외선 투과용 ZnS 나노분말 소결체 제조 방법은 (a) ZnSO4ㆍ7H2O 및 Na2Sㆍ9H2O를 1 : 1 초과 ~ 1 : 1.3 미만의 중량비로 용매에 혼합하여 100 ~ 240℃에서 1 ~ 24시간 동안 수열합성하는 단계; (b) 상기 수열합성된 반응물을 필터링 및 건조하여 ZnS 나노분말을 수득하는 단계; 및 (c) 상기 수득한 ZnS 나노분말을 900 ~ 1,000℃에서 소결하여 ZnS 나노분말 소결체를 형성하는 단계;를 포함하는 것을 특징으로 한다.

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Номер записи: 48
20-12-2018 дата публикации

METHOD FOR CONTROLLING SHAPE OF MICROPATTERN

Номер: KR1020180135274A
Автор: PARK, WOON IK, CHO, JEONG HO, PAIK, JEONG HOO, JEONG, YOUNG HUN, KIM, CHANG IL, CHOI, YOUNG JOONG, PARK, TAE WAN
Принадлежит:

Provided is a method for controlling a shape of a micropattern. The method may comprise the steps of: preparing a first master substrate including a first master pattern; providing a soft material on the first master substrate; separating the soft material from the first master substrate to produce a base substrate including a first duplicate pattern having a reverse image of the first master pattern; transforming the first duplicate pattern into a second duplicate pattern by bringing the second master substrate including the second master pattern into contact with the base substrate; providing a functional material on the base substrate including the second duplicate pattern; and transferring the functional material onto a target substrate. COPYRIGHT KIPO 2019 (AA) Start (BB) End (S110) Step of preparing a first master substrate including a first master pattern (S120) Step of providing a soft material on the first master substrate (S130) Step of separating the soft material from the first ...

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Номер записи: 49
26-03-2018 дата публикации

적층형 압전 소자

Номер: KR0101841840B1
Автор: 정영훈, 조정호, 윤지선, 백종후, 이민선
Принадлежит: 한국세라믹기술원

... 본 발명에서는 적층형 압전 소자가 개시된다. 상기 압전 소자는 적어도 하나의 압전 재료층; 상기 압전 재료층의 상면 및 하면에 적층되는 적어도 두 개의 전극층; 및 상기 각각의 전극층의 동일한 면에 위치한 일측으로부터 연장된 전극패드를 포함한다. 이러한 압전 소자를 이용하면, 압전 소자의 분극만을 위한 별도의 전극이 필요 없으며, 이에 의해 압전 소자의 제작이 쉬워지고, 분극 전압 및 구동 전압을 인가하는 과정이 용이해질 수 있는 이점이 있다. 본 발명에 따른 압전 소자는 액츄에이터(actuator), 센서 또는 에너지 하베스터 등에 적용될 수 있다.

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Номер записи: 50
04-05-2017 дата публикации

PIEZOELECTRIC ENERGY HARVESTER

Номер: WO2017073812A1
Автор: JEONG, Young Hun, PAIK, Jong Hoo, CHO, Jeong Ho, YUN, Ji Sun, KIM, Chang-Il
Принадлежит:

The present invention relates to a piezoelectric energy harvester and, more particularly, to a piezoelectric energy harvester that harvests energy from vibrations of a large-sized apparatus, etc. using a piezoelectric device disposed on a vibration plate connected to an outer frame. A piezoelectric energy harvester, according to an embodiment of the present invention, comprises: an outer frame; a vibration plate connected to the outer frame; and a piezoelectric device disposed on one or more of the upper and lower surfaces of the vibration plate, wherein the piezoelectric device includes: a piezoelectric fiber composite structure; and electrode units disposed on one or more of the upper and lower surfaces of the piezoelectric fiber composite structure, wherein the piezoelectric fiber composite structure has a plurality of piezoelectric ceramic rods arranged side by side and connected with each other by an adhesive provided therebetween, and each of the electrode units includes a pair of ...

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Номер записи: 51
04-04-2016 дата публикации

BNKT LEAD-FREE PIEZOELECTRIC CERAMICS AND ACTUATOR COMPRISING SAME

Номер: KR1020160036292A
Автор: YUN, JI SUN, CHO, JEONG HO, PARK, JUNG SOO, LEE, KU TAK, JEONG, YOUNG HUN, PAIK, JONG HOO
Принадлежит:

The present invention relates to BNKT lead-free piezoelectric ceramics and an actuator comprising the same, and more particularly to BNKT lead-free piezoelectric ceramics and an actuator comprising the same, which achieve a giant strain to be applied to an actuator and have a high normalized strain (S_(max)/E_(max)). In BNKT lead-free piezoelectric ceramics according to an embodiment of the present invention, Bi, Na, K, Ti, and O may form a solid solution in a composition of [Bi(Na,K)]TiO_3, and may have a pseudo-cubic perovskite crystalline structure. In the composition of [Bi(Na,K)]TiO_3, the total content of Bi may be more than a stoichiometric mole ratio thereof, and the total content of Na and K may be less than a stoichiometric mole ratio thereof. COPYRIGHT KIPO 2016 ...

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Номер записи: 52
29-04-2016 дата публикации

A mixer of microfluidic

Номер: KR0101614333B1
Автор: 윤지선, 조정호, 백종후
Принадлежит: 한국세라믹기술원

... 본 발명은, 2 종 이상의 용액을 이용하여 다른 혼합비율과 일정한 부피를 가지는 혼합용액을 손쉽게 얻을 수 있도록, 상하로 적층 하며 내부에 시료를 수용 및 혼합하기 위한 혼합공간을 형성하도록 된 상부몸체(2)와 하부몸체(3)를 포함하고, 제1시료 및 제2시료들이 상기 혼합공간으로 각각 유도되는 제1유도로(4) 및 제2유도로(5)들과 상기 제1유도로(4) 및 제2유도로(5)들 중에서 일 유도로를 통해 상기 혼합공간으로 공기압을 공급하도록 된 통기공(6)이 형성되고 상기 혼합공간에서 외부로 혼합용액을 배출하도록 된 배출통로(7)가 구비된 미세유체 혼합장치에 있어서; 상기한 상부몸체(2)에는, 2종의 시료를 각각 투입하는 상기 제1시료투입구(8) 및 제2시료투입구(9)들이 서로 사이 간격을 가지면서 각각 배치됨과 동시에, 상기 제1시료투입구(8) 및 제2시료투입구(9)들 중에서 제1시료투입구(8)가 연결된 상기 제1유도로(4)와 연통하여 제1시료가 수용됨과 아울러 상기 혼합공간의 일부를 구성하는 제1 시료 수용 부(10)가 구비되고; 상기 하부몸체(3)에는, 상기 제1시료투입구(8) 및 제2 시료투입구(9)들 중에서 제2시료투입구(9)가 연결된 상기 제2유도로(5)와 연통하여 제2시료를 수용함과 아울러 상기 혼합공간의 일부를 구성하는 제2 시료 수용 부(11)가 구비된 미세유체 혼합장치를 제공한다.

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Номер записи: 53
04-04-2016 дата публикации

BI-BASED LEAD-FREE PIEZOELECTRIC CERAMICS COMPRISING LANTHANUM AND ACTUATOR COMPRISING SAME

Номер: KR1020160036291A
Автор: YUN, JI SUN, CHO, JEONG HO, LEE, KU TAK, PARK, JUNG SOO, JEONG, YOUNG HUN, PAIK, JONG HOO
Принадлежит:

The present invention relates to Bi-based lead-free piezoelectric ceramics comprising lanthanum and an actuator comprising the same, and more particularly to Bi-based lead-free piezoelectric ceramics comprising lanthanum with excellent electrical characteristics, such as a low coercive electric field value, a high electric field induced strain (EFIS), and the like, and an actuator comprising the same. The Bi-based lead-free piezoelectric ceramics comprising lanthanum according to an embodiment of the present invention may form a solid solution through addition of a ternary oxide-based oxide comprising lanthanum to a [Bi(Na,K)]TiO_3-based parent body comprising Bi, Na, K, Ti, and O as main components, and may have a pseudo-cubic perovskite crystalline structure. COPYRIGHT KIPO 2016 ...

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Номер записи: 54
03-02-2017 дата публикации

INDIVIDUAL CONTROL TYPE CYLINDRICAL SOLID OXIDE BATTERY STACK MODULE

Номер: KR1020170012750A
Автор: SHIN, TAE HO, PAIK, JONG HOO
Принадлежит:

Disclosed is an individual control type cylindrical solid oxide battery stack module designed to allow a user to individually control a plurality of tubular batteries. According to the present invention, the individual control type cylindrical solid oxide battery stack module comprises: a fuel transfer panel including a plurality of battery insertion holes, a fuel injection port mounted to the edge on one side, and a fuel outlet port mounted to the edge on the other side; a plurality of tubular batteries inserted to each of the battery insertion holes of the fuel transfer panel; and a cover box mounted on the fuel transfer panel and covering the plurality of tubular batteries. COPYRIGHT KIPO 2017 ...

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Номер записи: 55
10-07-2017 дата публикации

PIEZOELECTRIC MATERIAL SHEET STACKED STRUCTURE, SPEAKER USING SAME, AND OPERATION METHOD THEREOF

Номер: KR1020170079111A
Автор: JEONG, YOUNG HUN, CHO, JEONG HO, YUN, JI SUN, PAIK, JONG HOO
Принадлежит:

The present invention relates to a piezoelectric material sheet stacked structure with improved portability and acoustic performance, a speaker using the same, and an operation method thereof. According to one embodiment of the present invention, the speaker using the piezoelectric material sheet stacked structure comprises: two piezoelectric material sheets overlapped vertically on top of each other; electrode patterns disposed on upper and lower surfaces of the two piezoelectric material sheets, and an interface therebetween; a vibration plate disposed on the upper or lower surface of the two piezoelectric material sheets. The electrode patterns include first and second electrode patterns, and the first and second electrode patterns are electrically insulated with each other, and include a plurality of electrodes forming an interdigitated electrode pattern. The electrode patterns are disposed to be projected as the identical shape in a vertical direction with each other, and a polarization ...

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Номер записи: 56
09-10-2014 дата публикации

PIEZOELECTRIC SPEAKER

Номер: WO2014163261A1
Автор: YUN, Ji Sun, CHO, Jeong Ho, PAIK, Jong-Hoo, JEONG, Young Hun, NAM, Joong Hee
Принадлежит:

A piezoelectric speaker according to the present invention comprises: a piezoelectric layer; a piezoelectric element having electrodes formed on both sides of the piezoelectric layer; and a vibration member that is attached to a side of the piezoelectric element and that is made of cellulose. According to the mode for carrying out the invention, opposite-phase vibration of a frame can be absorbed by the cellulose vibration member. Therefore, a conventional distorted sound effect caused by opposite-phase vibration of a frame can be reduced. In addition, cellulose has a piezoelectric character, thereby providing, when needed, a complementary piezoelectric effect to the piezoelectric layer by applying voltage to the vibration member having a piezoelectric character, and amplifying a vibration.

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Номер записи: 57
02-09-2015 дата публикации

MICROFLUIDIC MIXER

Номер: KR1020150100323A
Автор: YUN, JI SUN, CHO, JEONG HO, PAIK, JONG HOO
Принадлежит:

The present invention provides a microfluidic mixer. To easily obtain a mixed solution having different mixing ratios and a particular volume by using two or more solutions, the mixer includes an upper body (2) and a lower body (3) arranged vertically and having a mixing space formed therein to accommodate and mix samples. A first inducing pathway (4) and a second inducing pathway (5) for respectively inducing a first sample and a second sample to the mixing space are formed, and a ventilation hole (6) for supplying air pressure to the mixing space through one of the first inducing pathway (4) and the second inducing pathway (5) is formed. A discharging pathway (7) for discharging a mixed solution from the mixing space to the outside is formed. In the upper body (2), a first sample feeding hole (8) and a second sample feeding hole (9) for respectively feeding two samples are disposed at regular distances therebetween. At the same time, a first sample accommodating unit (10) constituting ...

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Номер записи: 58
24-05-2018 дата публикации

ENERGY HARVESTING SYSTEM HAVING PIEZOELECTRIC ELEMENT WITH IMPROVED BANDWIDTH

Номер: KR1020180054032A
Автор: PAIK, JONG HOO, JEONG, YOUNG HUN, CHO, JEONG HO, KIM, CHANG IL
Принадлежит:

The present invention relates to an energy harvesting system having a piezoelectric transducer with an improved bandwidth, which converts vibration energy into electric energy in a frequency range having a wide bandwidth. The energy harvesting system having a piezoelectric transducer with an improved bandwidth, comprises a case, a cantilever, an elastic member, and a piezoelectric transducer. The case includes a receiving unit. One end of the cantilever is fixed to a wall surface of the receiving unit, and the other end thereof is vertically moved by external vibration. The elastic member has one end fixed to an upper portion of the cantilever and generates vibration displacement by receiving vibration from the cantilever. The piezoelectric transducer is arranged on an upper portion of the elastic member, and converts the vibration energy into the electric energy by being deformed in accordance with the vibration displacement of the elastic member. COPYRIGHT KIPO 2018 ...

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Номер записи: 59
15-07-2010 дата публикации

UNIT FOR A PIEZOELECTRIC GENERATOR AND PIEZOELECTRIC GENERATOR SYSTEM COMPRISING SAME

Номер: KR2010079857A1
Автор: HAN, Woo Seok, PAIK, Jong Hoo, LEE, Young Jin, JEONG, Young Hun, KIM, Chang Il, PARK, Shin Seo
Принадлежит:

The present invention relates to a unit for a piezoelectric generator and to a piezoelectric generator system comprising same. The unit for a piezoelectric generator comprises: a substrate being characteristically bent by the pressure or vibration applied to a surface thereof, and having a restoration force countering the bendable characteristic; a first piezoelectric layer which is formed on a first surface of the substrate, has a first area, and is formed once or multiple times; a second piezoelectric layer which is formed on a second surface of the substrate opposite the first surface, having a second area narrower than the first area, and formed such that a portion of the area thereof or the entirety of the area thereof can be overlapped with the first piezoelectric layer; and a circuit unit formed on the first piezoelectric layer which is not overlapped with the region in which the second piezoelectric layer is formed, such that a portion of the area thereof or the entirety of the ...

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Номер записи: 60
04-07-2016 дата публикации

BNKT lead-free piezoelectric ceramics and Actuator using the same

Номер: KR0101635941B1
Автор: 윤지선, 조정호, 박정수, 이규탁, 정영훈, 백종후
Принадлежит: 한국세라믹기술원

... 본 발명은 BNKT 무연 압전 세라믹스 및 이를 포함하는 액츄에이터(actuator)에 관한 것으로, 더욱 상세하게는 액츄에이터에 적용하기 위한 거대 변형(giant strain)을 달성하고, 높은 정규화 변형률(Smax/Emax)을 갖는 BNKT 무연 압전 세라믹스 및 이를 포함하는 액츄에이터에 관한 것이다. 본 발명의 실시예에 따른 BNKT 무연 압전 세라믹스는 Bi, Na, K, Ti, O가 [Bi(Na,K)]TiO3의 조성으로 고용체를 이루며, 유사입방정 페로브스카이트(Perovskite) 결정 구조를 갖고, 상기 [Bi(Na,K)]TiO3의 조성에서 Bi의 전체 함량은 화학양론 함량보다 많으며, Na와 K의 전체 함량은 화학양론 함량보다 적을 수 있다.

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Номер записи: 61
28-11-2017 дата публикации

SENSOR FOR MONITORING SOUNDNESS OF STRUCTURE HAVING FLEXIBLE PROPERTY

Номер: KR1020170129994A
Автор: YUN, JI SUN, CHO, JEONG HO, JEONG, YOUNG HUN, PAIK, JONG HOO, JI, SANG HYUN
Принадлежит:

Disclosed is a sensor for monitoring the soundness of a structure having a flexible property, capable of maximizing sensing efficiency since the sensor is designed to be attached directly to various structures through a flexible property. According to the present invention, when the soundness monitoring sensor is used as an energy harvesting system or generator system, the sensor is applied to a nonpowered self-generation ceramic module for monitoring the safety of a structure. To achieve the purpose, according to the present invention, the soundness monitoring sensor includes: a first electrode film including a first electrode; a second electrode film placed under the first electrode film, and including a second electrode; a ceramic-polymer nanofiber film placed between the first and second electrode films; and first and second external connection wires connected with the first and second electrodes respectively. COPYRIGHT KIPO 2017 ...

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Номер записи: 62
21-09-2018 дата публикации

SELF-GENERATION IOT SENSOR MODULE AND ACCIDENT PREVENTION MONITORING SYSTEM HAVING SAME

Номер: KR101901146B1
Автор: JONG HOO PAIK, YOUNG HUN JEONG, WOON IK PARK, CHANG IL KIM
Принадлежит: KOREA INSTITUTE OF CERAMIC ENGINEERING AND TECHNOLOGY

Disclosed are a self-generation IoT sensor module and an accident prevention monitoring system having the module that can be installed with respect to a monitoring point having a wide area and can be wirelessly realized. The present invention is for real-time accident prevention monitoring with respect to a conveyor transfer device and others of a thermal power plant. The self-generation IoT sensor module according to the present invention is mounted and used in a transfer device. The module includes a piezoelectric energy harvester for converting vibration energy generated by operation of the transfer device into electric energy; a sensing circuit for measuring the temperature and vibration frequency attributable to heat and vibration generated during operation of the transfer device; and a wireless communication unit for wirelessly transmitting the temperature and vibration frequency data measured by the sensing circuit. The sensing circuit and the wireless communication unit are operated ...

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Номер записи: 63
22-11-2018 дата публикации

브로드 밴드 폭을 이용하는 압전 에너지 하베스터

Номер: KR0101921416B1
Автор: 정영훈, 조정호, 백종후, 이민선
Принадлежит: 한국세라믹기술원

... 본 발명은 브로드 밴드 폭을 이용하는 압전 에너지 하베스터에 관한 것으로서, 특히 2개 이상의 압전 시트를 이용하면서 소재를 달리하여 이러한 브로드 밴드 폭을 출력을 나타내는 압전 에너지 하베스터에 관한 것이다. 본 발명의 에너지 하베스터에 따르면, 높은 전압 출력 값을 나타내는 진동 주파수 범위를 브로드 밴드 폭으로 증가시켜 안정적으로 에너지 하베스팅을 실현할 수 있다. 또한, 이러한 에너지 하베스터는, 에너지가 필요한 장치, 예를 들어, 무선 센서가 설치된 한정된 공간 내에서도 전압 출력 값을 최대화할 수 있다. 본 발명의 압전 소자는 액츄에이터(actuator), 센서 또는 에너지 하베스터 등에 이용하는 것이다.

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Номер записи: 64
09-12-2016 дата публикации

탄소계 고분자 복합체의 제조방법, 그에 의해 제조된 탄소계 고분자 복합체, 그를 이용한 전극

Номер: KR0101684982B1
Автор: 윤지선, 조정호, 백종후
Принадлежит: 한국세라믹기술원

... 본 발명은, 제조공정의 단순화를 통해 경제적이면서, 탄소재료의 기본 성능을 제한하지 않고 유지할 수 있도록 하여 전극소자에 유용하게 적용함과 아울러, 특히 리튬 등과 같은 알칼리 금속이 함유된 불안정한 원재료의 전극 화를 효과적이며 안정적으로 수행할 수 있도록, 탄소계 고분자 복합체의 제조방법에 있어서; 알칼리 금속 함유 탄소계 재료(Carbonaceous)와 1종 이상의 올레핀(olefin) 단량체(monomer) 및 음이온 개시제(anioinic initiators)를 포함하여 중합 반응시키는 것으로 이루어진 탄소 고분자 복합체의 제조방법, 그에 의해 제조된 탄소계 고분자 복합체, 그를 이용한 전극을 제공한다.

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Номер записи: 65
05-07-2017 дата публикации

COMPOSITE BISMUTH-BASED LEAD-FREE PIEZOELECTRIC CERAMICS AND PREPARING METHOD THEREOF

Номер: KR101753824B1
Автор: CHO, JEONG HO, JEONG, YOUNG HUN, YUN, JI SUN, PARK, JUNG SOO, KIM, SEONG WON, PAIK, JONG HOO, JEONG, SOON JONG, LEE, JAE SHIN
Принадлежит: KOREA INSTITUTE OF CERAMIC ENGINEERING AND TECHNOLOGY

The present invention relates to composite bismuth-based lead-free piezoelectric ceramics and a method for preparing bismuth-based lead-free piezoelectric ceramics and, more specifically, to composite bismuth-based lead-free piezoelectric ceramics having excellent electric field induced strain in a low electric field, an actuator including the same and a method for preparing bismuth-based lead-free piezoelectric ceramics. The composite bismuth-based lead-free piezoelectric ceramics according to an embodiment of the present invention replaces Ti of (Bi,Na)TiO_3 with one element among Fe, Al and Sc in a (Bi,Na)TiO_3-SrTiO_3 based solid-solution composition made by adding SrTiO_3 to (Bi,Na)TiO_3 based parent composition and can have a perovskite crystal structure. COPYRIGHT KIPO 2017 (A1,A2,A3) Polarization (μC/cm^2) (B1,B2,B3) Electric field (kV/mm) ...

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Номер записи: 66
17-08-2017 дата публикации

MULTILAYER PIEZOELECTRIC DEVICE STRUCTURE AND MULTILAYER PIEZOELECTRIC DEVICE STRUCTURE INCLUDING MAGNETOSTRICTIVE MATERIAL

Номер: KR101768811B1
Автор: JEONG, YOUNG HUN, CHO, JEONG HO, PAIK, JONG HOO, YUN, JI SUN, PARK, WOON IK, LEE, MIN SEON
Принадлежит: KOREA INSTITUTE OF CERAMIC ENGINEERING AND TECHNOLOGY

The present invention relates to a multilayer piezoelectric device structure. The present invention also relates to such a multilayer piezoelectric device structure including a magnetostrictive material. A piezoelectric device of the present invention can be used in various fields such as a speaker, an actuator, a sensor, and an energy harvester. The multilayer piezoelectric device structure according to an embodiment of the present invention comprises: at least two piezoelectric material sheets stacked on top of one another; and electrode patterns disposed on the top and bottom surfaces of the piezoelectric material sheets, wherein the electrode patterns include a first electrode pattern and a second electrode pattern, the first electrode pattern and the second electrode pattern are electrically insulated, each of the first and second electrode patterns includes a plurality of electrodes forming an interdigitated electrode pattern, and the electrode patterns are arranged to be projected ...

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Номер записи: 67
09-03-2016 дата публикации

LEAD-FREE PIEZOELECTRIC CERAMICS AND ACTUATOR USING SAME

Номер: KR1020160026186A
Автор: YUN, JI SUN, CHO, JEONG HO, PARK, JUNG SOO, LEE, KU TAK, JEONG, YOUNG HUN, PAIK, JONG HOO
Принадлежит:

The present invention relates to a lead-free piezoelectric ceramic for low cost and mass production, and an actuator using the same. More particularly, the present invention relates to a lead-free piezoelectric ceramic having a perovskite structure for applying to a smart actuator, and an actuator using the same. The lead-free piezoelectric ceramic according to the embodiment of the present invention includes a [Bi(Na,K)]TiO_3 based composite which forms a solid solution of (Bi,Na)TiO_3 and (Bi,K)TiO_3 and has a perovskite crystal structure. The Bi content of the [Bi(Na,K)]TiO_3 may be higher than a stoichiometry content. The total content of Na and K may be lower than a stoichiometry content. COPYRIGHT KIPO 2016 ...

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Номер записи: 68
07-04-2016 дата публикации

POWER GENERATION APPARATUS AND POWER-GENERATING SENSOR USING SAME

Номер: KR1020160038098A
Автор: JEONG, YOUNG HUN, PAIK, JONG HOO, CHO, JUNG HO, KIM, CHANG IL
Принадлежит:

Disclosed are a power generation apparatus using a piezoelectric actuator and a power-generating sensor using the same. According to an aspect of the present invention, the power generation apparatus comprises: a piezoelectric film array having a plurality of piezoelectric films attached to a surface of a vibrating body; and a piezoelectric film striking structure to strike the piezoelectric films to generate electric energy. The power generation apparatus further comprises a magnetic unit to generate electric energy by electromagnetic induction generation according to contraction and restoration of a spring coil embedded in the piezoelectric film striking structure. COPYRIGHT KIPO 2016 ...

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Номер записи: 69
03-09-2015 дата публикации

Capacitor Electrodes With Composite Pores, And Manufacturing Method thereof

Номер: KR0101549481B1
Автор: 윤지선, 백종후, 조정호, 정영훈, 남중희
Принадлежит: 한국세라믹기술원

... 본 발명은 복합 기공을 갖는 커패시터 전극 및 그 제조방법에 관한 것으로, 자세하게는 균일한 매크로 기공을 갖는 메조포러스 물질을 이중 템플리팅(dual templating)을 통한 간단한 방법으로 제조하고 커패시터 전극에 이를 도입함으로써, 메조 기공이 갖는 장점인 넓은 표면적에 의한 높은 흡착 능력과 매크로 기공이 갖는 장점인 물질전달의 용이성을 복합적으로 얻을 수 있는 기술에 관한 것이다. 본 발명에 따르면, 메조/매크로포러스 물질을 커패시터 전극에 적용하여 높은 수열 안정성과 유효 비표면적을 얻을 수 있고, 물질전달의 용이성을 확보함으로써 전해질 이온의 흡착과 탈착에서 큰 장점을 보이며, 나아가 이에 따른 충전 및 방전 속도의 향상 효과를 얻을 수 있다.

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Номер записи: 70
22-03-2016 дата публикации

PIEZOELECTRIC FIBER COMPOSITE STRUCTURE AND PIEZOELECTRIC SPEAKER USING SAME

Номер: KR1020160031170A
Автор: JEONG, YOUNG HUN, CHO, JEONG HO, PAIK, JONG HOO, YUN, JI SUN
Принадлежит:

The present invention relates to a piezoelectric fiber composite structure for improving piezoelectric performance and a piezoelectric speaker using the same. A piezoelectric fiber composite structure according to an embodiment of the present invention includes piezoelectric ceramic rods arranged in parallel. An adhesive is arranged between the piezoelectric rods arranged in parallel so that the piezoelectric rods are connected to each other. An electrode pattern is formed on one or both sides of a heterogeneous composite comprising the piezoelectric rods and the adhesive. The piezoelectric fiber composite structure can be applied to a piezoelectric speaker, an actuator, etc. COPYRIGHT KIPO 2016 (AA) Cover layer (BB) Electrode pattern (CC) Different kind device complex (DD) Adhesive (EE) Piezoelectric ceramic ...

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Номер записи: 71
05-07-2016 дата публикации

MANUFACTURING METHOD FOR NANOFIBER COMPOSITE USING ELECTROSPINNING

Номер: KR0101635813B1
Автор: 윤지선, 백종후, 조정호, 박춘길
Принадлежит: 한국세라믹기술원

... 혼합 용매에 PDVF 및 소결된 PZT 분말이 혼합된 PZT-PVDF 복합체 용액을 전기방사하여 PZT-PVDF 나노섬유를 제조하는 것에 의해, 추가적인 소결 공정을 생략할 수 있는 전기방사법을 이용한 나노섬유 복합체 제조 방법에 대하여 개시한다.특히, 본 발명에서는 전기방사에 의해 제조되는 PZT-PVDF 나노섬유가 강유전성, 초전성, 압전성 및 유연성을 가지므로, 유전특성을 이용한 이동 통신기기의 핵심 소자 부품, 압전성을 이용한 마이크로 하베스팅 시스템(harvesting system)과 엑츄에이터(actuator), 그리고 초전성을 이용한 적외선센서, 적외선 감지소자 등의 재료로 널리 활용될 수 있다.본 발명에 따른 전기방사법을 이용한 나노섬유 복합체 제조 방법은 (a) 혼합 용매에 PVDF(polyvinylidene fluoride)를 첨가하여 교반한 후, PZT 분말을 혼합하여 PZT-PVDF 복합체 용액을 형성하는 단계; 및 (b) 상기 PZT-PVDF 복합체 용액을 기재 상에 전기방사한 후, 건조하여 PZT-PVDF 나노섬유를 형성하는 단계;를 포함하는 것을 특징으로 한다.

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Номер записи: 72
12-10-2018 дата публикации

PIEZOELECTRIC ENERGY HARVESTOR USING BROAD BAND WIDTH

Номер: KR1020180112503A
Автор: JEONG, YOUNG HUN, CHO, JEONG HO, PAIK, JONG HOO, LEE, MIN SEON
Принадлежит:

The present invention relates to a piezoelectric energy harvestor using a broad band width. More specifically, the present invention relates to the piezoelectric energy harvestor using two or more piezoelectric sheets and outputting such a broad band width with different materials. According to the energy harvestor of the present invention, the energy harvestor may stably harvest energy by increasing a vibration frequency range representing a high voltage output value by a broad band width. Further, the energy harvestor may maximize the voltage output value even in a limited space in which an energy-requiring device such as a wireless sensor is installed. A piezoelectric element of the present invention is used for an actuator, a sensor, or the energy harvestor. COPYRIGHT KIPO 2018 ...

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Номер записи: 73
10-08-2017 дата публикации

압전 재료 시트 적층 구조체, 이를 이용한 스피커 및 이의 구동 방법

Номер: KR0101764986B1
Автор: 정영훈, 조정호, 윤지선, 백종후
Принадлежит: 한국세라믹기술원

... 본 발명은 압전 재료 시트 적층 구조체에 관한 것이고, 또한 이를 이용한 압전 스피커에 관한 것이며, 이러한 압전 스피커를 구동하기 위한 방법에 관한 것이다. 본 발명의 일 실시예에 따른 압전 재료 시트 적층 구조체를 이용한 스피커는 두 개의 압전 재료 시트가 서로 위아래로 겹쳐 있고, 상기 두 개의 압전 재료 시트의 윗면, 아랫면, 그리고 사이면에 전극 패턴들이 배치되며, 상기 두 개의 압전 재료 시트의 윗면 또는 아랫면에 진동판이 배치되고, 상기 전극 패턴들은 제 1 전극 패턴 및 제 2 전극 패턴으로 이루어져 있으며, 상기 제 1 전극 패턴 및 제 2 전극 패턴은 전기적으로 절연되어 있고, 각각 서로 맞물리는(interdigitated) 전극 패턴을 형성하는 복수의 전극을 포함하고, 상기 전극 패턴들은 상하 방향으로 서로 동일한 형태로 투영되도록 배치되며, 상기 두 압전 재료 시트의 압전 활성 영역의 분극 방향은 서로 반대이다. 특히, 본 발명에 따른 압전 재료 시트 적층 구조체 및 이를 이용한 압전 스피커는 웨어러블 장치나 자동차, 액츄에이터(actuator) 등에 적용될 수 있다.

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Номер записи: 74
07-02-2018 дата публикации

ZnO계 바리스터 조성물 및 그의 제조방법과 바리스터

Номер: KR0101823770B1
Автор: 홍연우, 백종후, 김유비
Принадлежит: 한국세라믹기술원, 주식회사 비츠로머티리얼

... 본 발명은 Bi2O3, V2O5, Pr6O11 및 Pr2O3의 함유를 배제하는 ZnO계 바리스터 조성물을 개시한다. 본 발명에 의한 상기 조성물은 ZnO 98.0~99.9 at%와, BiVO40.1~2 at%와, Co3O4 0.2~3 at% 또는 Mn3O4 0.2~3 at%를 포함한다.

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Номер записи: 75
05-01-2018 дата публикации

플렉서블한 특성을 갖는 구조물의 건전성 모니터링 센서

Номер: KR0101815071B1
Автор: 윤지선, 조정호, 정영훈, 백종후, 지상현
Принадлежит: 한국세라믹기술원

... 플렉서블한 특성으로 다양한 형태의 구조물에 바로 부착하여 사용하는 것이 가능하도록 설계되어 센싱 효율을 극대화시킬 수 있는 플렉서블한 특성을 갖는 구조물의 건전성 모니터링 센서에 대하여 개시한다. 이때, 본 발명에 따른 플렉서블 특성을 갖는 구조물의 건전성 모니터링 센서를 에너지 하베스팅 시스템(energy harvesting system) 또는 발전기 시스템(generator system) 기능으로 활용할 시, 구조물의 안전 진단을 모니터링하기 위한 무전원 자가발전 세라믹 모듈로도 적용하는 것이 가능하다. 이를 위해, 본 발명에 따른 플렉서블한 특성을 갖는 구조물의 건전성 모니터링 센서는 제1 전극을 구비하는 제1 전극 필름; 상기 제1 전극 필름 하부에 배치되며, 제2 전극을 구비하는 제2 전극 필름; 상기 제1 및 제2 전극 필름 사이에 배치된 세라믹-고분자 나노섬유 필름; 및 상기 제1 전극 및 제2 전극에 각각 연결된 제1 및 제2 외부 연결배선;을 포함하는 것을 특징으로 한다.

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Номер записи: 76
11-05-2017 дата публикации

PIEZOELECTRIC ENERGY HARVESTER

Номер: KR1020170049830A
Автор: JEONG, YOUNG HUN, PAIK, JONG HOO, CHO, JEONG HO, YUN, JI SUN, KIM, CHANG IL
Принадлежит:

The present invention relates to a piezoelectric energy harvester and, more specifically, to the piezoelectric energy harvester uses piezoelectric elements arranged on a vibration plate connected to an external frame to harvest energy from vibration of a large apparatus and other devices. According to an embodiment of the present invention, the piezoelectric energy harvester includes: an external frame; a vibration plate connected to the external frame; and piezoelectric elements arranged on one or both of the upper and lower surfaces of the vibration plate. The piezoelectric elements include: a piezoelectric fiber composite structure; and electrode units arranged on one or both of the upper and lower surfaces of the piezoelectric fiber composite structure. The piezoelectric fiber composite structure has multiple piezoelectric ceramic rods arranged side-by-side and parallel while the piezoelectric ceramic rods are interconnected by an adhesive agent between the piezoelectric ceramic rods ...

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Номер записи: 77
06-07-2016 дата публикации

PIEZOELECTRIC DEVICE AND PIEZOELECTRIC SPEAKER

Номер: KR1020160079434A
Автор: JEONG, YOUNG HUN, CHO, JEONG HO, PAIK, JONG HOO, YUN, JI SUN
Принадлежит:

The present invention provides a piezoelectric device and a piezoelectric speaker. The piezoelectric device includes a first base film, a first electrode disposed on the first base film, a fiber composite structure disposed on the first electrode, and a second electrode disposed on the fiber composite structure. The fiber composite structure includes a plurality of piezoelectric ceramic rods having a plurality of piezoelectric ceramics connected to each other while a connecting pattern is interposed therebetween in a longitudinal direction, wherein the piezoelectric ceramic rods are disposed to be parallel to each other such that the piezoelectric ceramic and the connecting pattern are disposed in a perpendicular direction to the longitudinal direction, and an adhesive is disposed between the piezoelectric ceramic rods disposed to be parallel to each other such that the piezoelectric ceramic rods are connected to each other. Thus, by applying the piezoelectric device to the piezoelectric ...

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Номер записи: 78
08-11-2017 дата публикации

전기방사법을 이용한 다공성 나노섬유 복합체 제조 방법

Номер: KR0101794003B1
Автор: 윤지선, 백종후, 조정호, 정영훈
Принадлежит: 한국세라믹기술원

... 유연성 및 핸들링성이 우수함과 동시에 흡착 성능을 향상시킬 수 있어, 액츄에이터(actuator)로 활용하기에 적합한 전기방사법을 이용한 다공성 나노섬유 복합체 및 그 제조 방법에 대하여 개시한다. 본 발명에 따른 전기방사법을 이용한 다공성 나노섬유 복합체는 다공성 물질; 및 상기 다공성 물질의 표면을 감싸는 고분자 수지층;을 포함하되, 상기 고분자 수지층의 일부가 식각에 의해 제거되어, 상기 다공성 물질의 일부가 외부로 노출된 것을 특징으로 한다.

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Номер записи: 79
27-04-2018 дата публикации

METHOD TO MANUFACTURE INFRARED TRANSMITTING ZnS NANOPOWDER SINTERED BODY

Номер: KR101852772B1
Автор: JONG HOO PAIK, YOUN WOO HONG, CHANG SUN PARK, SEO YEONG YEO, TAE HYEONG KWON
Принадлежит: KOREA INSTITUTE OF CERAMIC ENGINEERING AND TECHNOLOGY

Disclosed are an infrared transmitting ZnS nano powder sintered body, increasing the ratio of sulfur (S) in hydrothermal synthesis to perform synthesis in a state where the ratio of S is greater than that of zinc (Zn) and prevent ZnO from being formed by oxidation of ZnS while performing vacuum heat treatment so as to remove Na_2SO_4, thereby securing an infrared transmittivity of 69% or more by removal of an absorption peak due to Na_2SO_4, and a manufacturing method thereof. According to the present invention, the method comprises: (a) a step of mixing ZnSO_4·7H_2O and Na_2S·9H_2O in a solvent by a weight ratio of 1:1 to 1:1.3 to perform hydrothermal synthesis; (b) a step of filtrating a reaction product of the hydrothermal synthesis and then performing vacuum heat treatment to acquire ZnS nanopowder; and (c) a step of sintering the acquired ZnS nanopowder at 800 to 1,050°C to form the nanopowder sintered body. COPYRIGHT KIPO 2018 ...

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Номер записи: 80