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:
Jan. 22, 2008
Filed:
Apr. 14, 2004
Applicants:
Yoichiro Tsuji, Osaka, JP;
Yoshihiro Hori, Nara, JP;
Masaki Yamauchi, Osaka, JP;
Makoto Uchida, Osaka, JP;
Inventors:
Yoichiro Tsuji, Osaka, JP;
Yoshihiro Hori, Nara, JP;
Masaki Yamauchi, Osaka, JP;
Makoto Uchida, Osaka, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 2/00 (2006.01); H01M 2/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A fuel cell is disclosed having a separator that can minimize damage to a membrane electrode assembly. The separator advantageously has a groove therein approximately positioned over an outer edge of an electrode of the fuel cell to reduce any pressure between the separator and the outer edge of the electrode upon assembly and during use thereafter.