公开(公告)号：US07505239B2

公开(公告)日：2009-03-17

申请号：US11402869

申请日：2006-04-13

Applicant: Jitsuo Kanazawa ,  Nobuei Shimojo ,  Dai Matsuoka ,  Kimio Suto ,  Makoto Numata ,  Yo Saito

Inventor： Jitsuo Kanazawa ,  Nobuei Shimojo ,  Dai Matsuoka ,  Kimio Suto ,  Makoto Numata ,  Yo Saito

IPC: H02H9/00

CPC classification number: H01C7/18 ,  H01C1/148 ,  H01C7/1006 ,  H01C13/00 ,  H01L25/167 ,  H01L2224/0554 ,  H01L2224/05568 ,  H01L2224/05573 ,  H01L2224/14 ,  H01L2924/00014 ,  H01L2924/0002 ,  H01L2924/00 ,  H01L2224/05599 ,  H01L2224/0555 ,  H01L2224/0556

Abstract: A light emitting device has a semiconductor light emitting element and a multilayer chip varistor. The multilayer chip varistor has a multilayer body with a varistor portion therein, and a plurality of external electrodes disposed on an outer surface of the multilayer body. The varistor portion has a varistor layer containing ZnO as a principal component and exhibiting nonlinear voltage-current characteristics, and a plurality of internal electrodes arranged to interpose the varistor layer between them. Each of the external electrodes is connected to a corresponding internal electrode out of the plurality of internal electrodes. The semiconductor light emitting element is disposed on the multilayer chip varistor. The semiconductor light emitting element is connected to corresponding external electrodes out of the plurality of external electrodes so as to be connected in parallel to the varistor portion.

Abstract translation: 发光器件具有半导体发光元件和多层片式变阻器。 多层片式压敏电阻具有其中具有变阻器部分的多层体，以及设置在多层体的外表面上的多个外部电极。 变阻器部分具有包含ZnO作为主要成分并具有非线性电压 - 电流特性的变阻器层，以及布置成在它们之间插入可变电阻层的多个内部电极。 每个外部电极连接到多个内部电极中的对应的内部电极。 半导体发光元件设置在多层片式压敏电阻上。 半导体发光元件与多个外部电极中的相应的外部电极连接，以便与压敏电阻部分并联连接。

公开(公告)号：US20080068124A1

公开(公告)日：2008-03-20

申请号：US11709677

申请日：2007-02-23

Applicant: Yo Saito ,  Hitoshi Tanaka ,  Makoto Numata ,  Hiroyuki Sato ,  Goro Takeuchi

Inventor： Yo Saito ,  Hitoshi Tanaka ,  Makoto Numata ,  Hiroyuki Sato ,  Goro Takeuchi

IPC: H01C1/08

CPC classification number: H01C7/102 ,  H01C1/084 ,  H01C7/12

Abstract: A laminated chip varistor comprises a varistor body, first and second inner electrodes, a heat conductor, and first and second outer electrodes. The varistor body has first and second outer faces. The first and second inner electrodes are disposed in the varistor body so that at least portions thereof are opposing to each other. The first and second outer electrodes are formed on the first outer face, the first outer electrode being connected to the first inner electrode, and the second outer electrode being connected to the second inner electrode. The heat conductor is formed in the varistor body extending in a direction from the first outer face toward the second outer face with one end face thereof exposed on the first outer face and the other end face thereof exposed on the second outer face.

Abstract translation: 层压芯片变阻器包括变阻器体，第一和第二内部电极，热导体以及第一和第二外部电极。 压敏电阻体具有第一和第二外表面。 第一和第二内部电极设置在可变压敏电阻体中，使得其至少一部分彼此相对。 第一外电极和第二外电极形成在第一外表面上，第一外电极连接到第一内电极，第二外电极连接到第二内电极。 导热体形成在从第一外面朝向第二外面方向延伸的可变电阻体内，其一端面在第一外面露出，另一端面露出在第二外面。

公开(公告)号：US20070188963A1

公开(公告)日：2007-08-16

申请号：US11702516

申请日：2007-02-06

Applicant: Yo Saito ,  Hiroyuki Sato ,  Hitoshi Tanaka ,  Makoto Numata

Inventor： Yo Saito ,  Hiroyuki Sato ,  Hitoshi Tanaka ,  Makoto Numata

IPC: H02H9/06

CPC classification number: H01C7/18 ,  H01C1/084 ,  H01L25/167 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A varistor comprises a varistor element body, first and second inner electrodes opposing each other, a first outer electrode connected to the first inner electrode physically and electrically, a second outer electrode connected to the second inner electrode physically and electrically, and an electrically insulating layer. The first and second inner electrodes are arranged within the varistor element body so as to have end portions exposed at two outer surfaces of the varistor element body. The first outer electrode is arranged on one of the two outer surfaces so as to cover a portion of the end portion of the first inner electrode exposed at the one outer surface. The second outer electrode is arranged on the one outer surface so as to cover a portion of the end portion of the second inner electrode exposed at the one outer surface. The electrically insulating layer is arranged on the one outer surface so as to cover a portion exposed from the first outer electrode in the end portion of the first inner electrode and a portion exposed from the second outer electrode in the end portion of the second inner electrode.

Abstract translation: 变阻器包括变阻器元件体，彼此相对的第一和第二内部电极，物理和电连接到第一内部电极的第一外部电极，物理和电连接到第二内部电极的第二外部电极，以及电绝缘层 。 第一和第二内部电极被布置在可变电阻元件主体内，使得端部暴露在可变电阻元件主体的两个外表面处。 第一外部电极布置在两个外表面中的一个上，以覆盖在一个外表面处暴露的第一内部电极的端部的一部分。 第二外部电极布置在一个外表面上，以覆盖在一个外表面处暴露的第二内部电极的端部的一部分。 电绝缘层布置在一个外表面上，以覆盖从第一内电极的端部中的第一外电极暴露的部分和从第二内电极的端部中的第二外电极露出的部分 。

公开(公告)号：US07994894B2

公开(公告)日：2011-08-09

申请号：US12426589

申请日：2009-04-20

Applicant: Hiroyuki Sato ,  Makoto Numata ,  Yo Saito ,  Hitoshi Tanaka ,  Goro Takeuchi ,  Osamu Taguchi ,  Ryuichi Tanaka

Inventor： Hiroyuki Sato ,  Makoto Numata ,  Yo Saito ,  Hitoshi Tanaka ,  Goro Takeuchi ,  Osamu Taguchi ,  Ryuichi Tanaka

IPC: H01C7/10

CPC classification number: H01C7/108 ,  H01C7/1006 ,  H01L23/62 ,  H01L23/647 ,  H01L33/641 ,  H01L2224/0554 ,  H01L2224/05568 ,  H01L2224/05573 ,  H01L2224/16268 ,  H01L2924/00014 ,  H01L2924/01046 ,  H01L2924/01079 ,  H01L2924/09701 ,  H01L2924/1305 ,  H01L2924/00 ,  H01L2224/05599 ,  H01L2224/0555 ,  H01L2224/0556

Abstract: A varistor having a favorable heat-dissipating property is provided.In the varistor, a composite part having a favorable heat-dissipating property formed by a composite material composed of ZnO and Ag is arranged between main faces of a varistor matrix. Therefore, the heat transmitted from a semiconductor light-emitting device to a varistor part through an outer electrode can rapidly be transferred toward a main face on the opposite side through the composite part. In this varistor, side faces excluding inner side faces are exposed at side faces of the varistor matrix. Such a structure yields a favorable heat-dissipating property.

Abstract translation: 提供具有良好的散热特性的变阻器。 在变阻器中，通过由ZnO和Ag组成的复合材料形成的具有良好的散热特性的复合部件设置在压敏电阻矩阵的主面之间。 因此，通过外部电极从半导体发光元件传递到变阻器部分的热量可以快速地通过复合部件向相反侧的主面转移。 在该压敏电阻中，除了内侧面的侧面在压敏电阻矩阵的侧面露出。 这种结构产生良好的散热性能。

公开(公告)号：US20090243768A1

公开(公告)日：2009-10-01

申请号：US12396942

申请日：2009-03-03

Applicant: Hiroyuki Sato ,  Makoto Numata ,  Yo Saito ,  Hitoshi Tanaka ,  Goro Takeuchi ,  Osamu Taguchi ,  Ryuichi Tanaka

Inventor： Hiroyuki Sato ,  Makoto Numata ,  Yo Saito ,  Hitoshi Tanaka ,  Goro Takeuchi ,  Osamu Taguchi ,  Ryuichi Tanaka

IPC: H01H83/00

CPC classification number: H01C7/102

Abstract: A first varistor section includes a first face of an element body, and a third face facing the first face. The first varistor section has a first varistor element body, a first varistor electrode electrically connected to a first external electrode, and a second varistor electrode electrically connected to a second external electrode. A heat radiation section has a first heat radiation portion kept in contact with the third face of the first varistor section and electrically connected to the first and third external electrodes, a second heat radiation portion kept in contact with the third face of the first varistor section and electrically connected to the second and fourth external electrodes, and an insulating layer located between the first heat radiation portion and the second heat radiation portion and electrically insulating the first heat radiation portion and the second heat radiation portion from each other. The first heat radiation portion and the second heat radiation portion contain a metal.

Abstract translation: 第一变阻器部分包括元件主体的第一面和面向第一面的第三面。 第一变阻器部具有第一变阻器元件本体，与第一外部电极电连接的第一变阻器电极和与第二外部电极电连接的第二变阻器电极。 散热部具有与第一可变电阻部的第三面保持接触并与第一和第三外部电极电连接的第一散热部，与第一可变电阻部的第三面保持接触的第二散热部 并且电连接到第二和第四外部电极，以及位于第一散热部分和第二散热部分之间的绝缘层，并且使第一散热部分和第二散热部分彼此电绝缘。 第一散热部和第二散热部包含金属。

公开(公告)号：US20080238604A1

公开(公告)日：2008-10-02

申请号：US12055671

申请日：2008-03-26

Applicant: Hiroyuki SATO ,  Yo SAITO ,  Ryuichi TANAKA ,  Makoto NUMATA ,  Goro TAKEUCHI

Inventor： Hiroyuki SATO ,  Yo SAITO ,  Ryuichi TANAKA ,  Makoto NUMATA ,  Goro TAKEUCHI

IPC: H01C7/10

CPC classification number: H01C1/084 ,  H01C1/14 ,  H01C7/1006 ,  H01C7/18 ,  H01L25/167 ,  H01L2224/0554 ,  H01L2224/05568 ,  H01L2224/05573 ,  H01L2224/14 ,  H01L2224/16225 ,  H01L2924/00014 ,  H01L2924/0002 ,  H01L2924/00 ,  H01L2224/05599 ,  H01L2224/0555 ,  H01L2224/0556

Abstract: In a varistor, a heat radiating portion contains the same components as ZnO that is the main component of a varistor element body, as metal oxides, thereby, the structural components of the varistor element body and the heat radiating portion are caused to be common. During firing, Ag contained in the heat radiating portion diffuses into the grain boundaries of ZnO, near the interface between surfaces of the heat radiating portion and the varistor element body. Consequently, in the varistor, cracks hardly occur between the varistor portion and the heat radiating portion during firing (or during binder removal), thereby, ensuring sufficient bonding strength between the varistor portion and the heat radiating portion. Therefore, heat conducted to the varistor portion is radiated efficiently conducting through electrically conducted paths formed in the heat radiating portion from the surface facing the varistor element body to other three surfaces of the heat radiating portion.

Abstract translation: 在变阻器中，散热部包含与作为金属氧化物的可变电阻元件主体的主要成分的ZnO相同的成分，因此使可变电阻元件主体和散热部的结构成为普通的。 在烧成期间，散热部中的Ag扩散到ZnO的晶界附近，靠近散热部和可变电阻元件主体的表面之间的界面。 因此，在压敏电阻中，在烧结（或者去除粘合剂期间）在变阻器部分和散热部分之间几乎不发生裂纹，从而确保了可变电阻部分和散热部分之间的充分的接合强度。 因此，传导到变阻器部分的热量从形成在散热部分的导电路径从与压敏电阻元件主体相对的表面有效地传导到散热部分的其它三个表面。

公开(公告)号：US07932806B2

公开(公告)日：2011-04-26

申请号：US12055671

申请日：2008-03-26

Applicant: Hiroyuki Sato ,  Yo Saito ,  Ryuichi Tanaka ,  Makoto Numata ,  Goro Takeuchi

Inventor： Hiroyuki Sato ,  Yo Saito ,  Ryuichi Tanaka ,  Makoto Numata ,  Goro Takeuchi

IPC: H01C7/10

CPC classification number: H01C1/084 ,  H01C1/14 ,  H01C7/1006 ,  H01C7/18 ,  H01L25/167 ,  H01L2224/0554 ,  H01L2224/05568 ,  H01L2224/05573 ,  H01L2224/14 ,  H01L2224/16225 ,  H01L2924/00014 ,  H01L2924/0002 ,  H01L2924/00 ,  H01L2224/05599 ,  H01L2224/0555 ,  H01L2224/0556

Abstract: In a varistor, a heat radiating portion contains the same components as ZnO that is the main component of a varistor element body, as metal oxides, thereby, the structural components of the varistor element body and the heat radiating portion are caused to be common. During firing, Ag contained in the heat radiating portion diffuses into the grain boundaries of ZnO, near the interface between surfaces of the heat radiating portion and the varistor element body. Consequently, in the varistor, cracks hardly occur between the varistor portion and the heat radiating portion during firing (or during binder removal), thereby, ensuring sufficient bonding strength between the varistor portion and the heat radiating portion. Therefore, heat conducted to the varistor portion is radiated efficiently conducting through electrically conducted paths formed in the heat radiating portion from the surface facing the varistor element body to other three surfaces of the heat radiating portion.

Abstract translation: 在变阻器中，散热部包含与作为金属氧化物的可变电阻元件主体的主要成分的ZnO相同的成分，因此使可变电阻元件主体和散热部的结构成为普通的。 在烧成期间，散热部中的Ag扩散到ZnO的晶界附近，靠近散热部和可变电阻元件主体的表面之间的界面。 因此，在压敏电阻中，在烧结（或者去除粘合剂期间）在变阻器部分和散热部分之间几乎不发生裂纹，从而确保了可变电阻部分和散热部分之间的充分的接合强度。 因此，传导到变阻器部分的热量从形成在散热部分的导电路径从与压敏电阻元件主体相对的表面有效地传导到散热部分的其它三个表面。

公开(公告)号：US07791449B2

公开(公告)日：2010-09-07

申请号：US11717098

申请日：2007-03-13

Applicant: Hiroyuki Sato ,  Yo Saito ,  Hitoshi Tanaka ,  Makoto Numata ,  Goro Takeuchi

Inventor： Hiroyuki Sato ,  Yo Saito ,  Hitoshi Tanaka ,  Makoto Numata ,  Goro Takeuchi

IPC: H01C7/10

CPC classification number: H01C7/102 ,  H01C1/142 ,  H01L25/167 ,  H01L2224/05568 ,  H01L2224/05573 ,  H01L2224/16225

Abstract: A varistor comprises an element body, two external electrodes, and a metal conductor. The element body includes a portion having first and second faces opposing each other. Two external electrodes are arranged on the first face of the element body. The metal conductor is arranged on the second face of the element body. The metal conductor has a thermal conductivity higher than that of the element body. At least a region between the two external electrodes and metal conductor in the element body exhibits a nonlinear current-voltage characteristic. The heat transmitted to the varistor is efficiently diffused from the metal conductor in the varistor.

Abstract translation: 变阻器包括元件体，两个外部电极和金属导体。 元件主体包括具有彼此相对的第一和第二面的部分。 两个外部电极布置在元件主体的第一面上。 金属导体布置在元件主体的第二面上。 金属导体的导热系数高于元件体的导热系数。 元件体内的至少两个外部电极和金属导体之间的区域呈现非线性电流 - 电压特性。 传输到变阻器的热量有效地从压敏电阻中的金属导体扩散。

公开(公告)号：US20100117782A1

公开(公告)日：2010-05-13

申请号：US12426589

申请日：2009-04-20

Applicant: Hiroyuki SATO ,  Makoto NUMATA ,  Yo SAITO ,  Hitoshi TANAKA ,  Goro TAKEUCHI ,  Osamu TAGUCHI ,  Ryuichi TANAKA

Inventor： Hiroyuki SATO ,  Makoto NUMATA ,  Yo SAITO ,  Hitoshi TANAKA ,  Goro TAKEUCHI ,  Osamu TAGUCHI ,  Ryuichi TANAKA

IPC: H01C7/10

CPC classification number: H01C7/108 ,  H01C7/1006 ,  H01L23/62 ,  H01L23/647 ,  H01L33/641 ,  H01L2224/0554 ,  H01L2224/05568 ,  H01L2224/05573 ,  H01L2224/16268 ,  H01L2924/00014 ,  H01L2924/01046 ,  H01L2924/01079 ,  H01L2924/09701 ,  H01L2924/1305 ,  H01L2924/00 ,  H01L2224/05599 ,  H01L2224/0555 ,  H01L2224/0556

Abstract: A varistor having a favorable heat-dissipating property is provided.In the varistor, a composite part having a favorable heat-dissipating property formed by a composite material composed of ZnO and Ag is arranged between main faces of a varistor matrix. Therefore, the heat transmitted from a semiconductor light-emitting device to a varistor part through an outer electrode can rapidly be transferred toward a main face on the opposite side through the composite part. In this varistor, side faces excluding inner side faces are exposed at side faces of the varistor matrix. Such a structure yields a favorable heat-dissipating property.

Abstract translation: 提供具有良好的散热特性的变阻器。 在变阻器中，通过由ZnO和Ag组成的复合材料形成的具有良好的散热特性的复合部件设置在压敏电阻矩阵的主面之间。 因此，通过外部电极从半导体发光元件传递到变阻器部分的热量可以快速地通过复合部件向相反侧的主面转移。 在该压敏电阻中，除了内侧面的侧面在压敏电阻矩阵的侧面露出。 这种结构产生良好的散热性能。

公开(公告)号：US07705709B2

公开(公告)日：2010-04-27

申请号：US11717041

申请日：2007-03-13

Applicant: Yo Saito ,  Hiroyuki Sato ,  Hitoshi Tanaka ,  Makoto Numata ,  Goro Takeuchi

Inventor： Yo Saito ,  Hiroyuki Sato ,  Hitoshi Tanaka ,  Makoto Numata ,  Goro Takeuchi

IPC: H01C7/10

CPC classification number: H01C7/102 ,  H01C1/142 ,  H01C7/1006 ,  H01L2224/05568 ,  H01L2224/05573 ,  H01L2224/16225

Abstract: A varistor comprises a varistor portion, a metal portion, and buffer portion. The varistor portion has a varistor element body exhibiting a nonlinear current-voltage characteristic and two electrode portions. The metal portion has a thermal conductivity higher than that of the varistor element body. The buffer portion is disposed between the varistor portion and metal portion so as to be bonded to each of the varistor portion and metal portion and mainly composed of glass. The two electrode portions are arranged in the varistor element body so as to be electrically insulated from each other while exposing at least a portion of each thereof from an outer surface of the varistor element body. The metal portion and varistor portion are joined firmly to each other. The heat transmitted to the varistor can efficiently be diffused from the metal portion.

Abstract translation: 变阻器包括变阻器部分，金属部分和缓冲部分。 变阻器部分具有非线性电流 - 电压特性的变阻器元件体和两个电极部分。 金属部分的导热系数高于可变电阻元件主体的导热率。 缓冲部分设置在可变压敏电阻部分和金属部分之间，以便与各个可变电阻部分和金属部分接合并主要由玻璃组成。 两个电极部分布置在可变电阻元件主体中，使得它们彼此电绝缘，同时使其中的至少一部分从可变电阻元件主体的外表面露出。 金属部分和变阻器部分彼此牢固连接。 传递到变阻器的热量可以有效地从金属部分扩散。