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:
Oct. 24, 2006
Filed:
Jul. 03, 2003
Applicant:
Fumio Tanno, Chiba, JP;
Inventor:
Fumio Tanno, Chiba, JP;
Assignee:
Nisshinbo Industries, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/02 (2006.01); H01B 1/24 (2006.01); B29C 45/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A fuel cell separator is molded from a resin composition containing specific amounts of graphite, thermosetting resin and internal release agent. The graphite is a synthetic graphite powder prepared by graphitizing lump coke. The thermosetting resin is a mixture of phenolic novolac, benzoxazine and polycarbodiimide resins. The molded separator does not need to be machined, has a significantly improved electrical conductivity, heat resistance and mechanical strength, and even when very thin is resistant to breakage during molding and fuel cell assembly.