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:
Apr. 21, 2009
Filed:
Dec. 22, 2004
Applicants:
Tadashi Iino, Kawasaki, JP;
Zenichiro Izumi, Kawasaki, JP;
Inventors:
Tadashi Iino, Kawasaki, JP;
Zenichiro Izumi, Kawasaki, JP;
Assignee:
Showa Denko K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 2/00 (2006.01); H01M 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A fuel cell separator having a surface layer on one side or both sides thereof. The surface layer includes at least two layers, wherein the surface layer includes a low-elastic modulus layer () having a bending elastic modulus of 1.0×10<sp>1</sp>-6.0×10<sp>3</sp> MPa, and a bending strain of 1% or more; and a high-elastic modulus layer () having a bending elastic modulus exceeding 6.0×10<sp>3</sp> MPa, as at least one layer constituting the surface layer, other than the low-elastic modulus layer ().