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:
Sep. 18, 2012

Filed:

May. 20, 2011
Applicants:

Hiroyuki Tanaka, Utsunomiya, JP;

Narutoshi Sugita, Utsunomiya, JP;

Tadashi Nishiyama, Tochigi-ken, JP;

Takaki Nakagawa, Tochigi, JP;

Inventors:

Hiroyuki Tanaka, Utsunomiya, JP;

Narutoshi Sugita, Utsunomiya, JP;

Tadashi Nishiyama, Tochigi-ken, JP;

Takaki Nakagawa, Tochigi, JP;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/04 (2006.01); H01M 2/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

Flow guides forming an inlet channel are formed on a surface of a metal separator of a fuel cell. The flow guides overlap a section of an outer seal provided on the other surface of the metal separator. When a load is applied to the flow guides and the overlapping section in a stacking direction of the fuel cell, the flow guides and the overlapping section are deformed substantially equally in the stacking direction to the same extent. The line pressure of the flow guides and the line pressure of the overlapping section are substantially the same. The seal length Lof the flow guides and the seal length Lof the overlapping section are substantially the same.


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