The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 03, 2008
Filed:
Sep. 30, 2004
Hideto Ishikawa, Shizuoka, JP;
Atsushi Omura, Shizuoka, JP;
Tsuyoshi Inagaki, Shizuoka, JP;
Kouji Nagai, Shizuoka, JP;
Tetsuo Ohinata, Shizuoka, JP;
Hideto Ishikawa, Shizuoka, JP;
Atsushi Omura, Shizuoka, JP;
Tsuyoshi Inagaki, Shizuoka, JP;
Kouji Nagai, Shizuoka, JP;
Tetsuo Ohinata, Shizuoka, JP;
Nichias Corporation, Tokyo, JP;
Abstract
The present invention provides a separator for fuel cell containing: a flat plate member; a gas passage-side member provided on one side of the flat plate member and having passages for passing a reactant gas therethrough; and a cooling water passage-side member provided on the other side of the flat plate member and having passages for passing cooling water therethrough, wherein the gas passage-side member and the cooling water passage-side member are formed from first and second conductive resin compositions which are different from each other, respectively, and the difference between the thermal expansion coefficient of the gas passage-side member in its thickness direction and the thermal expansion coefficient of the cooling water passage-side member in a direction perpendicular to its thickness direction is 25×10/K or smaller, and wherein the flat plate member contains at least one of the first and second conductive resin compositions.