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:
Mar. 31, 2009
Filed:
Apr. 09, 2003
Applicants:
Mitsuo Hamada, Aichi, JP;
Hidehiko Ohashi, Aichi, JP;
Kazushige Mihara, Aichi, JP;
Tomoyoshi Chiba, Aichi, JP;
Makoto Nakamura, Hiroshima, JP;
Inventors:
Mitsuo Hamada, Aichi, JP;
Hidehiko Ohashi, Aichi, JP;
Kazushige Mihara, Aichi, JP;
Tomoyoshi Chiba, Aichi, JP;
Makoto Nakamura, Hiroshima, JP;
Assignee:
Mitsubishi Rayon Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 13/50 (2006.01); H01M 4/96 (2006.01);
U.S. Cl.
CPC ...
Abstract
A carbon fiber paper including carbon fibers having a surface area ratio of 1.05 or more, and a porous carbon electrode substrate for a fuel cell having this carbon fiber paper as a constituent. The electrode substrate for a fuel cell has carbon fibers uniformly dispersed therein and is flexible. The carbon fiber paper is suitable for production of the electrode substrate.