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.

Patent No.:

US 8137856 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 20, 2012

Filed:

Feb. 13, 2009
Applicants:

Kenji Yamaga, Hitachi, JP;

Tsutomu Okusawa, Hitachi, JP;

Masaya Kozakai, Hitachi, JP;

Inventors:

Kenji Yamaga, Hitachi, JP;

Tsutomu Okusawa, Hitachi, JP;

Masaya Kozakai, Hitachi, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/10 (2006.01);
U.S. Cl.
CPC ...
Abstract

Excellent gas sealing properties were difficult to achieve with a structure that uses a meal material to control material cost and does not increase the number of components. A cell is configured by using a metal separator having at least one protruding structure between a manifold and an electrode channel, and having a communicating channel structure that forms a fluid circulating space by being folded back at the side containing a connection so that the tip of the protruding structure is in contact with a surface of the separator. Accordingly, a gas channel from the manifold to an electrode surface can be easily formed integrally. This can be applied to a metal material easily. Further, the present invention can provide excellent gas sealing properties.


Find Patent Forward Citations

Yamaga, Kenji. (2012). Fuel cell (U.S. Patent No. 8137856). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8137856

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