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:
Apr. 10, 2012

Filed:

Mar. 24, 2005
Applicants:

Narutoshi Sugita, Utsunomiya, JP;

Teruyuki Ohtani, Haga-gun, JP;

Shuhei Goto, Utsunomiya, JP;

Yosuke Fujii, Kawachi-gun, JP;

Inventors:

Narutoshi Sugita, Utsunomiya, JP;

Teruyuki Ohtani, Haga-gun, JP;

Shuhei Goto, Utsunomiya, JP;

Yosuke Fujii, Kawachi-gun, JP;

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/02 (2006.01); H01M 4/86 (2006.01);
U.S. Cl.
CPC ...
Abstract

A fuel cell is formed by stacking a membrane electrode assembly and separators alternately. Each of the separators includes first and second metal plates. A coolant flow field is formed between the first metal plate of the fuel cell and the second metal plate of the adjacent fuel cell. A folded section is provided around a coolant supply passage by folding the second metal plate. The folded section forms an inlet which enlarges the sectional area of an opening as a fluid passage between the coolant supply passage and the coolant flow field.


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