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. 11, 2011

Filed:

Mar. 01, 2007
Applicants:

Hideaki Kikuchi, Kawachi-gun, JP;

Narutoshi Sugita, Utsunomiya, JP;

Norimasa Kawagoe, Utsunomiya, JP;

Masaru Oda, Utsunomiya, JP;

Takashi Kosaka, Utsunomiya, JP;

Takeshi Banba, Shioya-gun, JP;

Yasuhiro Watanabe, Kawaguchi, JP;

Inventors:

Hideaki Kikuchi, Kawachi-gun, JP;

Narutoshi Sugita, Utsunomiya, JP;

Norimasa Kawagoe, Utsunomiya, JP;

Masaru Oda, Utsunomiya, JP;

Takashi Kosaka, Utsunomiya, JP;

Takeshi Banba, Shioya-gun, JP;

Yasuhiro Watanabe, Kawaguchi, JP;

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 2/38 (2006.01);
U.S. Cl.
CPC ...
Abstract

A fuel gas flow field is formed on a surface of a rectangular first metal separator. The fuel gas flow field includes flow grooves extending in the direction of gravity. An outlet buffer is provided at a lower end of the fuel gas flow field. The outlet buffer includes an inclined surface inclined toward a fuel gas discharge passage. The fuel gas discharge passage is positioned below the outlet buffer. Outlet channel grooves are formed by ridges provided between the fuel gas discharge passage and the outlet buffer. Lower ends of the ridges are arranged in a zigzag pattern.


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