Tdk Corporation

Tohoku University

Sae Magnetics (h.k.) Limited

Atsushi Hitomi

Kensaku Asakura

Yasuhiro Hirobe

Kei Sugiura

Yukio Kawaguchi

Takeshi Urano

Tomokazu Ito

Masahiro Itoh

Takeshi Nomura

Yukie Nakano

Kazuhiko Itoh

Yuji Terada

Masao Asakawa

Minoru Sakurabayashi

Hiroyuki Ono

Takashi Ota

Makoto Morita

Akira Satoh

Katsuyuki Kurachi

Tsuneo Kuwahara

Tomohiro Arashi

Akira Sato

Teiichi Tanaka

Hitoshi Takamura

Akira Kakinuma

Kazumitsu Tanaka

Tsutomu Koyanagi

Takashi Kajino

Takao Matsumoto

Sho Nakagomi

Cheng Yih Liu

Keiko Kubo

Kenichi Jinguji

Described herein are solid oxide fuel cells and manufacturing methods thereof. In certain aspects, the solid oxide fuel cells described herein include a plurality of anodes and a plurality of cathodes in which the anodes and cathodes are alternately stacked on each other and have non-overlapping sections in which the anodes and cathodes do not overlap partially. In certain aspects, the plurality of anodes are electrically connected to a first electrode, and the plurality of cathodes are electrically connected to a second electrode. In certain aspects, a solid electrolyte can be included, for example, between the anode and the cathode. In certain aspects, partitioning sections are disposed between each of the cathodes and the first electrode and between each of the anodes and the second electrode.

Arrangement of components in a solid oxide fuel cell and manufacturing method thereof

The present invention is provided with a composite electronic device comprising an inductor element and an ESD protection element formed between two magnetic substrates, wherein the inductor element includes insulation layers made of a resin, and spiral conductors formed on the insulation layers, the ESD protection element includes a base insulation layer, a pair of gap electrodes arranged via gap formed therebetween on the base insulation layer, and an ESD absorbing layer arranged at least between the gap electrodes, and a gap protection layer provided on at least one of the upper side and lower side of the gap, the ESD absorbing layer includes a composite material having an insulation inorganic material and a conductive inorganic material discontinuously dispersed in a matrix of the insulation inorganic material. The gap protection layer is made of resin including magnetic powder and carbon.

Composite electronic device

The present invention is provided with a composite electronic device comprising an inductor element and an ESD protection element formed between two magnetic substrates, wherein the inductor element includes insulation layers made of a resin, and conductor patterns formed on the insulation layers, the ESD protection element includes a base insulation layer, a pair of electrodes arranged via gap formed therebetween on the base insulation layer, and an ESD absorbing layer arranged at least between the electrodes, and the ESD absorbing layer includes a composite material having an insulation inorganic material and a conductive inorganic material discontinuously dispersed in a matrix of the insulation inorganic material.

Composite electronic device, manufacturing method thereof, and connection structure of composite electronic device

An ESD protection device that has low capacitance, excellent discharge characteristics, and improved heat resistance and weather resistance is provided. A functional layer, which is a composite having a conductive inorganic materialdiscretely dispersed in a matrix of an insulating inorganic material, is disposed between electrodesanddisposed on an insulating substrateand facing but spaced apart from each other.

ESD protection device

A composite electronic device includes first and second magnetic substrates, and a functional layer sandwiched between these magnetic substrates, and the functional layer is configured by a common-mode filter layer and a ESD protection element layer. An electrostatic capacitance of the ESD protection elements is equal to or lower than 0.35 pF. The common-mode filter layer includes a first spiral conductor formed on an insulation layer, and a second spiral conductor formed on an insulation layer. DC resistance of a common mode filter is equal to or higher than 0.5&#x3a9; and equal to or lower than 5&#x3a9;, and an electrostatic capacitance of the ESD protection elements is equal to or lower than 0.35 pF. A width W and a length L of the first and second spiral conductors satisfy a relational equation expressed by &#x221a;(L/W)&#x3c;(7.6651&#x2212;fc)/0.1385.

Composite electronic device and digital transmission circuit using thereof

A multilayer PTC thermistorincludes a ceramic bodyhaving a plurality of ceramic layersand internal electrodesbetween adjacent ceramic layers, external electrodeson the end facesof the ceramic body, and a glass layeron the surfacesof the ceramic body, the glass layercontaining an oxide of at least one element selected from the group consisting of zinc and bismuth as the major component, wherein the alkali oxide content of the glass layer is no greater than 0.8 mass %.

Multilayer PTC thermistor

The present invention is provided with a composite electronic device comprising an inductor element and an ESD protection element formed between two magnetic substrates, wherein the inductor element includes insulation layers made of a resin, and spiral conductors formed on the insulation layers, the ESD protection element includes a base insulation layer, a pair of gap electrodes arranged via gap formed therebetween on the base insulation layer, and an ESD absorbing layer arranged at least between the gap electrodes, and the ESD absorbing layer includes a composite material having an insulation inorganic material and a conductive inorganic material discontinuously dispersed in a matrix of the insulation inorganic material. The gap of the ESD protection element is provided at exterior of the spiral conductor so as not to be overlapped with the spiral conductor in view of a laminating direction.

The present invention provides an ESD protection device and the like having improved durability against repeated use. An ESD protection device includes a base having an insulating surface, electrodes disposed on the insulating surface and facing but spaced apart from each other, and a functional layer disposed on at least between the electrodes. The electrodes have a multistage structure in which a gap between the electrodes is narrower toward the base.

ESD protection device and composite electronic component of the same

An object of the present invention is to provide an ESD protection device and the like which offer a reduced discharge starting voltage and improved durability against repeated use. The present invention provides an ESD protection device including a basehaving an insulating surface, electrodesanddisposed on the insulating surfaceand facing but spaced apart from each other, and a functional layerdisposed on at least between the electrodesand, wherein the gap distance &#x394;G between the electrodesandranges from 0.5 &#x3bc;m to 10 &#x3bc;m, and the thickness &#x394;T of each of the electrodesandmeets a relationship of &#x394;G/&#x394;T=1 to 30.

An object is to provide a sintered body having a sufficiently higher polishing rate than a conventional AlTiC sintered body and providing a sufficiently smooth air bearing surface. The sintered body according to the present invention consists of AlOand a compound represented by the chemical formula (1) below:TiCO&#x2003;&#x2003;(1)wherein x+y&#x2266;1, x&#x3e;0 and 0.3&#x3c;y&#x2266;0.6.

Sintered body and production method thereof

A stacked PTC thermistorcomprises a bodyobtained by alternating lamination of a semiconductor ceramic layerand an internal electrode, and a pair of external electrodesprovided at the edge facesof the bodyand electrically connected with the internal electrode. The semiconductor ceramic layeris composed of a porous sintered compact containing crystal grains of a barium titanate-based compound, and an alkali metal element is preferentially distributed in at least one of the grain boundaries and voids of the sintered compact.

Stacked PTC thermistor and process for its production

A sintered body for a magnetic head slider, which can reduce differences in level of an air bearing surface while yielding a high strength, a magnetic head slider using the same, and a method of manufacturing a sintered body for a magnetic head slider are provided. The sintered body of the present invention is a sintered body comprising alumina crystal grains and a thin film containing carbon provided at a grain boundary between the alumina crystal grains, whereas the alumina crystal grains have an average particle size of 0.05 to 0.5 &#x3bc;m.

Sintered body, magnetic head slider, and method of manufacturing sintered body

The magnetic head slider material of the present invention is a magnetic head slider material made of a sintered body containing alumina, titanium carbide, and carbon; wherein a titanium carbide crystal grain has an average crystal grain size greater than that of an alumina crystal grain in the sintered body.

Magnetic head slider material, magnetic head slider, and method of manufacturing magnetic head slider material

The magnetic head slider material of the present invention is constituted by a sintered body containing 100 parts by weight of alumina, 20 to 120 parts by weight of titanium carbide, and 0.2 to 9 parts by weight of carbon.

Magnetic slider and method of manufacturing magnetic head slider

A material for a magnetic head slider according to the present invention is a magnetic head slider material comprised of a sintered body containing alumina and titanium carbide, in which an area percentage of an area of alumina crystal grains and titanium carbide crystal grains having a crystal grain size of not less than 200 nm nor more than 350 nm to an area of alumina crystal grains and titanium carbide crystal grains in a cut surface of the sintered body is not less than 80%.

Growing community of inventors

Tokyo, Japan

Atsushi Hitomi