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:
Oct. 17, 2017

Filed:

Sep. 24, 2010
Applicants:

Masaru Oda, Utsunomiya, JP;

Nagayuki Kanaoka, Utsunomiya, JP;

Shunsuke Itami, Saitama, JP;

Ryohei Ishimaru, Sumida-ku, JP;

Masaaki Sakano, Utsunomiya, JP;

Inventors:

Masaru Oda, Utsunomiya, JP;

Nagayuki Kanaoka, Utsunomiya, JP;

Shunsuke Itami, Saitama, JP;

Ryohei Ishimaru, Sumida-ku, JP;

Masaaki Sakano, Utsunomiya, JP;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/02 (2016.01); H01M 8/241 (2016.01); H01M 8/2457 (2016.01); H01M 8/2483 (2016.01); H01M 8/0267 (2016.01); H01M 8/0258 (2016.01); H01M 8/1007 (2016.01);
U.S. Cl.
CPC ...
H01M 8/241 (2013.01); H01M 8/0258 (2013.01); H01M 8/0267 (2013.01); H01M 8/1007 (2016.02); H01M 8/2457 (2016.02); H01M 8/2483 (2016.02);
Abstract

A fuel cell is formed by sandwiching a membrane electrode assembly between a first separator and a second separator. The membrane electrode assembly includes a cathode, an anode, and a solid polymer electrolyte membrane interposed between the cathode and the anode. In the membrane electrode assembly, a catalyst area of an electrode catalyst layer of the cathode and an electrode catalyst layer of the anode terminates at a position spaced upwardly from lower ends of an oxygen-containing gas flow field and a fuel gas flow field.


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