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:
Aug. 30, 2005

Filed:

Oct. 18, 2000
Applicants:

Takashi Komura, Saitama-ken, JP;

Narutoshi Sugita, Utsunomiya, JP;

Shigeru Inai, Tochigi-ken, JP;

Inventors:

Takashi Komura, Saitama-ken, JP;

Narutoshi Sugita, Utsunomiya, JP;

Shigeru Inai, Tochigi-ken, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M008/10 ; H01M008/04 ;
U.S. Cl.
CPC ...
Abstract

A fuel cell stack is provided with an outlet side oxygen-containing gas communication hole. First and second oxygen-containing gas flow passage grooves are provided in the direction of the gravity while meandering in the horizontal direction on a surface of a first separator. The second oxygen-containing gas flow passage grooves communicate with the outlet side oxygen-containing gas communication hole via second oxygen-containing gas connecting flow passages. A porous water-absorbing tube, which is used to discharge water to the outside of the fuel cell stack in accordance with the capillary phenomenon and the difference in pressure of air, is provided for the is outlet side oxygen-containing gas communication hole.


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