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.

Date of Patent:
Jul. 08, 2008

Filed:

Mar. 25, 2005
Applicants:

Narutoshi Sugita, Utsunomiya, JP;

Daisuke Okonogi, Shioya-gun, JP;

Mikihiko Kimura, Gyoda, JP;

Shuhei Goto, Utsunomiya, JP;

Inventors:

Narutoshi Sugita, Utsunomiya, JP;

Daisuke Okonogi, Shioya-gun, JP;

Mikihiko Kimura, Gyoda, JP;

Shuhei Goto, Utsunomiya, JP;

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 2/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A power generation cell includes a membrane electrode assembly and first and second metal separators sandwiching the membrane electrode assembly. The first metal separator is a thin metal plate. A first seal member is formed integrally around the outer end of the first metal separator. A portion defining an orifice is provided in an outer marginal region of the first metal separator. The thickness Hof the first seal member in the area covering the portion defining the orifice is larger than the thickness of the Hof the first seal member in the area covering other portions.


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