Aisin Seiki Kabushiki Kaisha

Hideo Seko

Masami Ishii

Hikaru Okamoto

Akihito Isomura

A method for manufacturing a carbon sheet, particularly for an electrode of a fuel cell, includes the steps of forming a sheet by mixing carbon fibers and a bonding agent; drying the formed sheet; immersing the dried formed sheet in a water repellent material particle dispersed dilute solution; removing the formed sheet from the water repel material particle dispersed dilute solution; baking the formed sheet for fixing water repel material particles thereon contained in the water repel material particle dispersed dilute solution; and oxidizing the bonding agent for removing the same from the formed sheet during the baking.

Method for manufacturing carbon sheet

A method for producing a composite catalytic molding containing metallic platinum and metallic ruthenium comprising depositing metallic platinum on a surface of a conductive molding containing conductive material and water repellant material by applying a platinum compound solution on said surface and subjecting said platinum compound to deoxidation, followed by depositing metallic ruthenium on a surface of said conductive molding by applying a ruthenium compound solution on said surface and subjecting said ruthenium compound to deoxidation.

Method for producing composite catalytic molding

A valve seat arrangement is provided in which a ceramic valve seat is secured to a valve seat holder. The valve seat holder is directly connected to the cylinder head of the block of the internal combustion engine between the exhaust passage and the combustion chamber of the engine. The cylinder head is made of cast aluminum. Due to the differences in the coefficient of heat of the various metals, the ceramic valve seat will be securely retained in the cylinder head.

Valve seat arrangement

The invention is directed to an arrangement by which harmful or noxious substances such as NOx or SOx may be evaporated from a gas heated pump system. The deletion of the substances is provided by heating a portion of the exhaust system in which the substances would collect. The heating evaporates the substances before they can be emitted to the atmosphere.

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Hashima, Japan

Hideo Seko