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.:

US 6855407 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 15, 2005

Filed:

Sep. 06, 2002
Applicants:

Katsutoshi Ishioka, Fukushima, JP;

Shigeru Watanabe, Fukushima, JP;

Takaaki Yasudomi, Fukushima, JP;

Inventors:

Katsutoshi Ishioka, Fukushima, JP;

Shigeru Watanabe, Fukushima, JP;

Takaaki Yasudomi, Fukushima, JP;

Assignee:

NOK Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D04H005/00 ;
U.S. Cl.
CPC ...
Abstract

An electroconductive resin composition, which comprises a thermosetting resin as a matrix and 40 to 90% by weight, on the basis of the composition, of carbon fibers and graphite as fillers, has a high electroconductivity and is suitable for use as a molding material for fuel cell separators. By using a molding material comprising phenol resin as a matrix and at least one kind of carbon fibers and graphite being coated by an electroconductive metal and molding fuel cell separators from the molding material, followed by post-curing at 130 to 300° C., fuel cell separators with a stable power generation capacity can be obtained.


Find Patent Forward Citations

Ishioka, Katsutoshi. (2005). Electrically conductive resin composition (U.S. Patent No. 6855407). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6855407

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