Ngk Spark Plug Company, Limited

Morimura Sofc Technology Co., Ltd.

Japan As Represented by Director General Agency of Industrial Science

Hiroshi Sumi

Manabu Sato

Nobuyuki Hotta

Hidetoshi Mizutani

Masahiro Shibata

Hideki Uematsu

Hiroya Ishikawa

Masahiko Okuyama

Takeshi Ohno

Toshifumi Kojima

Kazuhiro Urashima

Yoshiyuki Yokogawa

Keizo Furusaki

Tetsuya Kameyama

Tetsuya Morikawa

Yukari Kawamoto

Fukue Nagata

Kaori Nishizawa

Ryoji Tanimura

Kohji Okada

Hayato Katsuda

Mitsuo Shiraishi

Masashi Suzumura

Tsutomu Sakai

Tatsuharu Ikawa

Norihiko Ikai

Toshihumi Kojima

Tetsuo Suehiro

Hideki Nishiwaki

Satoru Ishida

Hidetoshi Mitzutani

A composite including an electrolyte layer containing solid oxide, and at least one electrode selected from a cathode disposed on one side of the electrolyte layer in a first direction and an anode disposed on the other side of the electrolyte layer in the first direction. Either one of two surfaces of the composite located on opposite sides in the first direction satisfies a first requirement that, as viewed in the first direction, a curvature determined on the basis of any three points juxtaposed at intervals of 5 mm is less than 0.0013 (l/mm) and that, as viewed in a second direction perpendicular to the first direction, the curvature is the reciprocal of the radius of an imaginary circle passing through the any three points.

Composite, and electrochemical reaction cell stack

Provided is a fuel cell cassette capable of assuredly suppressing separator deformation and maintaining good battery characteristics. A fuel cell cassette () includes a flat plate-shaped single cell (), a separator (), a fuel electrode frame, an interconnector and an air electrode insulating frame () stacked together. In the fuel cell cassette (), the separator () and the fuel electrode frame () are joined by welding. The air electrode insulating frame () has gas channels () defined therein for flow of oxidant gas. The fuel cell cassette has a welding mark () formed on an exposed region of the separator () inside the gas channel () such that the exposed region of the separator () is fixed to the fuel electrode frame by the welding mark ().

Fuel cell cassette and fuel cell stack

A flat-plate-type fuel cell stack including a plurality of plate-shaped stacked fuel cells each including an electrolyte layer, an anode, and a cathode. The fuel cell stack includes at least one of a fuel manifold communicating with a space adjacent to the anode and an oxidant manifold communicating with a space adjacent to the cathode. A compression seal member and a glass seal member are disposed around the at least one manifold.

Fuel cell stack and method of producing the same

A solid oxide fuel cell includes a fuel cell main body which includes a cathode layer, a solid electrolyte layer, and an anode layer and which has a power generation function; a connector disposed to face one electrode layer of the cathode layer and the anode layer; a current collector which is disposed between the one electrode layer and the connector and which is in contact with a surface of the one electrode layer and a surface of the connector, the surfaces facing each other, to thereby electrically connect the one electrode layer and the connector; and a groove provided in a portion of a surface of the one electrode layer, which surface is located on the side where the one electrode layer is in contact with the current collector, the portion of the surface being not in contact with the current collector.

Solid oxide fuel cell

A solid electrolyte fuel cell comprises a solid electrolyte body having a fuel electrode contacting a fuel gas and an air electrode contacting air. A plurality of the solid electrolyte fuel cells are stacked to form a solid electrolyte fuel cell stack, in which the stacked body of the solid electrolyte fuel cells is pressed in the stacked direction and fixed by a fixing member inserted into a through-hole passing through the stacked body in the stacked direction. Inside the through-hole, there is equipped an inner gas channel for supplying the gas to the solid electrolyte fuel cell side or evacuating the gas from the solid electrolyte fuel cell side.

Solid electrolyte fuel cell stack

A solid state electrolyte fuel cell stack includes: layered solid state electrolyte fuel cells, each formed by a solid state electrolyte body having a fuel pole in contact with a fuel gas and an air pole in contact with an oxidant gas; and inter-connectors arranged between the solid state electrolyte fuel cells so as to separate a gas flow path between the solid state electrolyte fuel cells and assure electric conduction between the solid state electrolyte fuel cells. The solid state electrolyte fuel cell stack has two or more air vents for supplying a fuel gas or two or more air vents for supplying the oxidant gas which vents penetrate a part or the whole of the fuel cell stack in the stack layering direction. The different air vents communicate with the different solid state electrolyte fuel cells.

A wiring substrate comprised of a substrate main body made of glass-ceramic, a pad formed on a surface of the substrate main body and a conductor pin provided in an upright position on the pad. The pad is comprised of a ceramic that is the same as the ceramic constituting the glass-ceramic, Fe converted into FeOand Cu. The FeOcomprises 1 to 28 parts by weight with respect to 100 parts by weight of the Cu.

Wiring substrate and bonding pad composition

A dielectric material comprising: a glass powder constituted of a glass comprising Si, B and an alkali metal element, the glass being amorphous in sintering at a temperature of 1,050&#xb0; C. or lower; and a ceramic filler comprising at least one member of SiO, AlOand 3AlO.2SiO, and an alkali metal element, wherein when a total sum of Si converted into SiO, B converted into BOand the alkali metal element converted into AO, wherein A represents an alkali metal element, all of which are contained in the glass, is 100 mole %, the content of the alkali metal element converted into AO, which is contained in the glass, is 0.5 mole % or less; and when a total sum of at least one member of SiO, AlOand 3AlO.2SiO, and the alkali metal element converted into AO, all of which are contained in the ceramic filler, is 100 mole %, a content of the alkali metal element converted into AO, which is contained in the ceramic filler, is 0.5 mole % or less.

Dielectric material and dielectric sintered body, and wiring board using the same

A wiring board comprising: a conductor layer comprising Fe and Cu; and at least one of a radiator, a connection terminal, a cover and a circuit component, connected to the conductor layer through a joining member, which is obtained by coating a copper paste comprising a copper powder, an organic vehicle and an FeOparticle as a conductor layer on a ceramic green sheet and firing it.

Copper paste and wiring board using the same

A wiring board obtained by filling a copper paste in a via hole formed on a ceramic green sheet and firing it to form an insulating layer and a via conductor, the copper paste comprising a copper powder, an organic vehicle and at least one selected from the group consisting of: a ceramic particle having an average particle size of 100 nm or less; and an FeOparticle, wherein the copper paste comprises from 6 to 20 parts by mass of the organic vehicle per 100 parts by mass of the copper powder.

Paste for filling throughhole and printed wiring board using same

A paste for filling through-holes of a printed wiring board contains 100 parts by weight of an epoxy resin composition containing 90 to 99.5 parts by weight of an epoxy resin and 0.5 to 10 parts by weight of a curing agent; and (B) 500 to 1000 parts by weight of a metallic filler having an average particle size of 0.5 to 20 &mgr;m. The paste has a viscosity of not higher than 20,000 poise at 25&deg; C. and a volatile content of not more than 1.0% when heated in a filling step. The paste exhibits such shrink-resistance properties that when a first cured resin obtained by heating in a filling step is re-heated and cooled in a solder reflow step to obtain a second cured resin, the shrinkage percentage of the first cured resin to the second cured resin in the longitudinal direction of the through-hole is not greater than 0.1%.

Paste for through-hole filling and printed wiring board using the same

The present invention provides a method for producing a calcium phosphate coating film on the surface of a substrate, even a substrate which has poor heat resistance. The method comprises the steps of soaking a substrate in a first solution containing phosphate ions, inter alia, aqueous solutions of a basic phosphate salt such as Na.sub.3 PO.sub.4 or Na.sub.2 HPO.sub.4 ; removing the substrate and drying it; and soaking the substrate in a second solution (aqueous solution) containing calcium ions, to thereby obtain a coating film comprising hydroxyapatite or a mixture containing hydroxyapatite and a hydroxyapatite precursor. The substrate removed from the second solution may be soaked in a third solution (aqueous solution) containing an apatite component at a substantially saturated or supersaturated concentration, to thereby form a hydroxyapatite coating film. There may be used substrates formed of metals, ceramics, organic polymer materials, etc. The method is applicable to a substrate having poor heat resistance, such as synthetic resin fabric, due to omission of high-temperature treatment.

Growing community of inventors

Ichinomiya, Japan

Hiroshi Sumi