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:
Dec. 07, 2010

Filed:

Oct. 25, 2005
Applicants:

Masaaki Sakano, Utsunomiya, JP;

Masaru Oda, Utsunomiya, JP;

Kentaro Nagoshi, Utsunomiya, JP;

Inventors:

Masaaki Sakano, Utsunomiya, JP;

Masaru Oda, Utsunomiya, JP;

Kentaro Nagoshi, Utsunomiya, JP;

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/00 (2006.01); H01M 8/04 (2006.01); H01M 8/24 (2006.01);
U.S. Cl.
CPC ...
Abstract

A fuel cell stack includes unit cells. At one side of the unit cells, an oxygen-containing gas supply passage and a fuel gas discharge passage having different opening areas are provided. At the one side of the unit cells, a recess is provided near the fuel gas discharge passage having a relatively small opening area. A cell voltage terminal is provided in the recess such that the cell voltage terminal does not protrude outwardly from the side of the unit cells.


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