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.:
Date of Patent:
Mar. 23, 2004
Filed:
Jul. 06, 2001
Applicant:
Inventors:
Noriyuki Suzuki, Futtsu, JP;
Yuichi Yoshida, Futtsu, JP;
Tsutomu Haeno, Futtsu, JP;
Hiroshi Kihira, Futtsu, JP;
Assignee:
Nippon Steel Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/00 ;
U.S. Cl.
CPC ...
H01M 2/00 ;
Abstract
A highly durable separator for solid polymer fuel cells that can be produced at low cost and that is characterized by the separator having a flat portion in the peripheral portion and channels in the central portion composed of protruded portions and recessed portions which provide flow paths for gases on the front surface and the back surface, and the shape of each channel end portion being tilted.