公开(公告)号：US5345427A

公开(公告)日：1994-09-06

申请号：US37457

申请日：1993-03-26

Applicant: Yoshihiko Ishida ,  Yuji Asai ,  Makoto Tani

Inventor： Yoshihiko Ishida ,  Yuji Asai ,  Makoto Tani

IPC: G01N29/24 ,  B06B1/06 ,  G01S7/521 ,  H01L41/08 ,  H01L41/18 ,  H04R17/00

CPC classification number: B06B1/0644

Abstract: A phase-insensitive ultrasonic transducer has a zinc oxide single crystal as a piezoelectric semiconducting acoustoelectric element, providing high sensitivity and operable over a range of wavelengths of the ultrasonic waves. The electrical conductivity of said zinc oxide single crystal may be selected in the range 10.sup.-8 to 10.sup.-2 .OMEGA..sup.-1.cm.sup.-1. The single crystal can have an attenuation rate for ultrasonic waves of 10 MHz of at least 0.8 cm.sup.-1.

Abstract translation: 相位不敏感的超声换能器具有氧化锌单晶作为压电半导体声电元件，提供高灵敏度并且可在超声波的波长范围内操作。 所述氧化锌单晶的电导率可以在10-8至10-2欧米加-1.cm-1的范围内选择。 单晶可以具有至少0.8cm -1的10MHz的超声波的衰减率。

公开(公告)号：US5312700A

公开(公告)日：1994-05-17

申请号：US855661

申请日：1992-03-23

Applicant: Yoshihiko Ishida

Inventor： Yoshihiko Ishida

IPC: H01M8/02 ,  H01M8/12 ,  H01M8/24 ,  H01M8/10

CPC classification number: H01M8/2425 ,  Y02P70/56 ,  Y10T29/49114 ,  Y10T29/49115

Abstract: A solid oxide fuel cell including a flat plate-shaped solid oxide fuel cell element. The cell element is composed of an ion-conductive ceramic plate formed with ribs connected with each other in a plane, an air electrode formed on one main surface of the ion-conductive ceramic plate, and a fuel electrode formed on the other main surface of the ion-conductive ceramic plate. In producing the fuel cell, a flat plate-shaped green sheet made of an ion-conductive ceramic molding material is press contacted with a rib-forming green sheet made of a material of the same kind and having a unitary shape formed by connecting elongated portions to each other. The contacted green sheets are sintered together to form an ion-conductive ceramic plate. In an alternative, a flat plate-shaped green sheet and a rib-forming green sheet may be separately sintered and then bonded with each other to form an ion-conductive ceramic plate. The ion-conductive ceramic plate is formed with an air electrode surface and a fuel electrode on opposite main surfaces, respectively.

Abstract translation: 一种固体氧化物燃料电池，包括平板状固体氧化物燃料电池元件。 电池元件由形成有在平面中彼此连接的肋的离子传导陶瓷板，形成在离子导电陶瓷板的一个主表面上的空气电极和形成在离子导电陶瓷板的另一个主表面上的燃料电极 离子导电陶瓷板。 在制造燃料电池的过程中，将由离子传导性陶瓷成形材料制成的平板状生片与由相同种类的材料制成的肋状生片压接而成， 对彼此。 将接触的生片烧结在一起以形成离子传导陶瓷板。 或者，可以将平板状的生片和成肋生坯片分别烧结，然后彼此结合，形成离子传导陶瓷板。 离子导电陶瓷板分别在相对的主表面上形成有空气电极表面和燃料电极。

公开(公告)号：US4614453A

公开(公告)日：1986-09-30

申请号：US667205

申请日：1984-11-01

Applicant: Nobuo Tsuno ,  Yoshihiko Ishida

Inventor： Nobuo Tsuno ,  Yoshihiko Ishida

IPC: B23K1/19 ,  C04B37/02 ,  F01D5/02 ,  F16B1/00 ,  F16B4/00 ,  F16B9/00 ,  F01D5/28 ,  F01L1/14

CPC classification number: F01D5/025 ,  C04B37/021 ,  F16B4/00 ,  C04B2235/6562 ,  C04B2237/32 ,  C04B2237/36 ,  C04B2237/368 ,  C04B2237/40 ,  C04B2237/403 ,  C04B2237/406 ,  C04B2237/568 ,  F16B2001/0085 ,  Y10T403/217 ,  Y10T403/48 ,  Y10T403/7039 ,  Y10T403/74

Abstract: Disclosed herein is a metal-ceramic composite body having a ceramic member with a small diameter portion and a large diameter portion which are formed by providing a ceramic member with a projection and a metallic member with a recessed portion or through hole. The ceramic member and the metallic member are bonded together by inserting the small diameter portion into the recessed portion or through hole such that a space being not less than the diameter of the small diameter portion is provided between the edge surface of the metallic member on the side of the ceramic member at the bonding portion and the back surface of the large diameter portion of the ceramic member. The thickness of the edge portion of the metallic member is gradually reduced toward the ceramic member at a radius of curvature of not smaller than 0.4 times as large as the diameter of the small diameter portion. A method of producing the metal-ceramic composite body is also disclosed herein.

Abstract translation: 本发明公开了一种具有陶瓷构件的金属陶瓷复合体，该陶瓷构件具有小直径部分和大直径部分，该陶瓷构件通过为陶瓷构件提供突起而形成，而金属构件具有凹部或通孔。 陶瓷构件和金属构件通过将小直径部分插入凹部或通孔中而结合在一起，使得在金属构件的边缘表面之间设置不小于小直径部分的直径的空间 在陶瓷构件的接合部分和大直径部分的后表面处的陶瓷构件的侧面。 金属构件的边缘部分的厚度以不小于小直径部分的直径的0.4倍的曲率半径朝着陶瓷构件逐渐减小。 本文还公开了制造金属 - 陶瓷复合体的方法。

公开(公告)号：US06472972B1

公开(公告)日：2002-10-29

申请号：US09570749

申请日：2000-05-15

Applicant: Yoshihiko Ishida

Inventor： Yoshihiko Ishida

IPC: H01B102

CPC classification number: C04B35/14 ,  C04B35/447 ,  H01C7/023

Abstract: A PTC composite material including a matrix of ceramic material having one of a cristobalite crystal structure and a tridymite crystal structure, each doped with an oxide of at least one of Be, B, Mg, Al, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge and W, and a conductive phase dispersed throughout the matrix. The conductive phase includes at least one of a metal, silicide, nitride, carbide and boride.

Abstract translation: 一种PTC复合材料，包括具有方英石晶体结构和鳞石英晶体结构之一的陶瓷材料基体，每一个都掺杂有Be，B，Mg，Al，Ca，Sc，Ti，V，Cr中的至少一种的氧化物 ，Mn，Fe，Co，Ni，Cu，Zn，Ga，Ge和W以及分散在整个基体中的导电相。 导电相包括金属，硅化物，氮化物，碳化物和硼化物中的至少一种。

公开(公告)号：US06224790B1

公开(公告)日：2001-05-01

申请号：US09324263

申请日：1999-06-02

Applicant: Yoshihiko Ishida

Inventor： Yoshihiko Ishida

IPC: H01B102

CPC classification number: H01C7/02

Abstract: A conductive composite sintered body exhibiting PTC behavior, including a high electrical resistance matrix and 20 vol %-40 vol % electrically conductive particles dispersed in the matrix to form an electrically conducting three-dimensional network therethrough. The electrically conductive particles are selected from bismuth, gallium, or alloys thereof, and an average distance between the particles, when viewed in an arbitrary cross-section through the sintered body, is no more than 8 times the average particle diameter of the particles. The resistivity of the sintered body is low at temperatures below the melting point of the electrically conductive material and increases substantially at or above the melting point.

Abstract translation: 一种具有PTC性能的导电复合烧结体，包括分散在基质中的高电阻矩阵和20体积％-40体积％的导电颗粒，以形成通过其导电的三维网络。 导电粒子选自铋，镓或它们的合金，并且当从通过烧结体的任意横截面观察时，颗粒之间的平均距离不超过颗粒的平均粒径的8倍。 在低于导电材料的熔点的温度下，烧结体的电阻率低，并且基本上在熔点以上升高。

公开(公告)号：US4856970A

公开(公告)日：1989-08-15

申请号：US837203

申请日：1986-03-10

Applicant: Isao Oda ,  Yoshihiko Ishida

Inventor： Isao Oda ,  Yoshihiko Ishida

IPC: B23K20/00 ,  B23K1/19 ,  B23P11/00 ,  B23P11/02 ,  B23P15/02 ,  C04B37/02 ,  F01D5/02 ,  F01L1/14 ,  F01L3/02 ,  F02F7/00 ,  F16B1/00 ,  F16B4/00 ,  F16D1/08

CPC classification number: F01D5/025 ,  F01L1/14 ,  F01L3/02 ,  F02F7/0087 ,  F16B4/00 ,  F16D1/0858 ,  F05D2300/121 ,  F05D2300/2118 ,  F16B2001/0085

Abstract: In a metal-ceramic combination wherein a monobloc ceramic member comprising a base, a protrusion integrally formed on the base and an easement portion on and around the root of the protrusion, is combined with a metallic member, an improved combination having an excellent strength in total is obtained by fitting the protrusion tightly into a recession or conduit of the metallic member, leaving clearance of 0.5 mm or more between the easement portion and a defined edge of joint interface of the said two members. The combination of the invention is particularly useful for engine parts to be subjected to high temperatures and repeated stresses such as a turbocharger rotor, piston, tappet, rocker arm, exhaust valve, cam and the like.

Abstract translation: 在金属陶瓷组合中，其中包括基底的整体陶瓷构件，在基座上整体形成的突起和突起的根部周围的接地部分与金属构件组合，具有优异的强度的组合 通过将突起紧紧地装配到金属构件的凹部或导管中而获得总数，在地板部分和所述两个构件的接合界面的限定边缘之间留出0.5mm以上的间隙。 本发明的组合对于受到高温的发动机部件和诸如涡轮增压器转子，活塞，挺杆，摇臂，排气阀，凸轮等的重复应力特别有用。

公开(公告)号：US5207507A

公开(公告)日：1993-05-04

申请号：US848680

申请日：1992-03-09

Applicant: Hiroshi Kimoto ,  Mikindo Saiga ,  Sekio Uemura ,  Shoji Seike ,  Yoshihiko Ishida ,  Toshihiko Nakagawa

Inventor： Hiroshi Kimoto ,  Mikindo Saiga ,  Sekio Uemura ,  Shoji Seike ,  Yoshihiko Ishida ,  Toshihiko Nakagawa

IPC: G01N25/14 ,  G01N5/04 ,  G01N25/24 ,  G01N31/12 ,  G01N33/22

CPC classification number: G01N33/222 ,  G01N5/04

Abstract: A method for continuous thermogravimetric analysis of coal, or other materials rich in carbon, for volatile matter and ash content, including the steps of exposing a coal sample to an atmosphere consisting essentially of about 1 to 5% by volume of oxygen and the remainder being nitrogen and inevitable impurities at a first specified temperature for a first given time, weighing the coal sample to determine a first weight loss during the first given time, the first weight loss corresponding to the amount of volatile matter in the coal sample, burning the coal sample under an oxygen atmosphere having a higher than normal oxygen concentration for a second given time at a temperature sufficient to burn carbon containing materials in the coal sample, and weighing the coal sample to determine a second weight loss during the first given time and the second given time, the second weight loss corresponding to the amount of volatile matter and the amount of ash content in the coal sample.

Abstract translation: 一种用于连续热重分析煤或其他富含碳的材料用于挥发物和灰分含量的方法，包括将煤样暴露于基本上由约1至5体积％氧气组成的气氛的步骤，其余为 氮和不可避免的杂质在第一规定温度下进行第一给定时间，称量煤样以确定在第一给定时间内的第一重量损失，第一重量损失对应于煤样品中的挥发物质量，燃烧煤 在足够燃烧煤样品中的含碳材料的温度下，在具有高于正常氧浓度的氧气气氛下进行第二给定时间的样品，并称量煤样品以确定在第一给定时间内的第二重量损失，而第二给定时间 给定时间，第二次减肥对应于挥发物质量和煤样中灰分含量。

公开(公告)号：US4728078A

公开(公告)日：1988-03-01

申请号：US80068

申请日：1987-07-31

Applicant: Isao Oda ,  Yoshihiko Ishida

Inventor： Isao Oda ,  Yoshihiko Ishida

IPC: F01L3/02 ,  F01L3/22 ,  G01N3/02 ,  G01N19/04 ,  F16K31/00

CPC classification number: F01L3/22 ,  G01N19/04 ,  G01N2203/0274

Abstract: A ceramic valve seat is disclosed herein. A face portion of the valve seat at which the valve seat is to contact with a valve is made of a ceramic material. At least edge portions of the valve-contacting face portion of the valve seat are rounded. By so constructing, impact force due to contact between the valve and the valve seat and stress concentration can be mitigated.

公开(公告)号：US06547989B1

公开(公告)日：2003-04-15

申请号：US09639240

申请日：2000-08-15

Applicant: Yoshihiko Ishida

Inventor： Yoshihiko Ishida

IPC: H01B100

CPC classification number: H01C7/021

Abstract: An inorganic-metal composite body exhibiting PTC behavior at a trip point temperature ranging from 40° C.-300° C., including an electrically insulating inorganic matrix having a room temperature resistivity of at least 1×106 &OHgr;·cm, and electrically conductive particles uniformly dispersed in the matrix and forming a three-dimensional conductive network extending from a first surface of said body to an opposed second surface thereof, wherein the composite body has a room temperature resistivity of no more than 10 &OHgr;·cm and a high temperature resistivity of at least 100 &OHgr;·cm. Preferably, the electrically conductive particles are made of a Bi-based alloy containing at least 50 wt % Bi, and have an average diameter, &phgr;ave, of 5-50 &mgr;m and a 3&sgr; particle size distribution of 0.5 &phgr;ave-2.0 &phgr;ave. Also disclosed is an inorganic PTC device including an intermediate electrode layer to insure adhesion of outer termination electrodes to the PTC composite body, and a method of forming the composite body, which method effectively deals with the volatility of the electrically conductive particles.

公开(公告)号：US06358436B2

公开(公告)日：2002-03-19

申请号：US09360465

申请日：1999-07-23

Applicant: Yoshihiko Ishida

Inventor： Yoshihiko Ishida

IPC: H01B100

CPC classification number: H01C7/021

Abstract: An inorganic-metal composite body exhibiting PTC behavior at a trip point temperature ranging from 40° C.-300° C., including an electrically insulating inorganic matrix having a room temperature resistivity of at least 1×106 &OHgr;·cm, and electrically conductive particles uniformly dispersed in the matrix and forming a three-dimensional conductive network extending from a first surface of said body to an opposed second surface thereof, wherein the composite body has a room temperature resistivity of no more than 10 &OHgr;·cm and a high temperature resistivity of at least 100 &OHgr;·cm. Preferably, the electrically conductive particles are made of a Bi-based alloy containing at least 50 wt % Bi, and have an average diameter, &phgr;ave, of 5-50 &mgr;m and a 3&sgr; particle size distribution of 0.5 &phgr;ave−2.0 &phgr;ave. Also disclosed is an inorganic PTC device including an intermediate electrode layer to insure adhesion of outer termination electrodes to the PTC composite body, and a method of forming the composite body, which method effectively deals with the volatility of the electrically conductive particles.

Abstract translation: 在-40℃-300℃的跳变点温度下显示出PTC行为的无机金属复合体，包括室温电阻率为至少1×10 6欧姆·厘米的电绝缘性无机基体，导电粒子均匀 分散在基质中并形成从所述本体的第一表面延伸到其相对的第二表面的三维导电网络，其中所述复合体的室温电阻率不大于10欧米亚·厘米，并且高温电阻率 至少100欧米伽。 优选地，导电颗粒由含有至少50重量％Bi的Bi基合金制成，并且具有5-50μm的平均直径，phiave和0.5phiave-2.0 phiave的3sigma粒度分布。 还公开了一种无机PTC装置，其包括用于确保外部终端电极与PTC复合体的粘附的中间电极层，以及形成复合体的方法，该方法有效地处理了导电颗粒的挥​​发性。