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:
Dec. 20, 2011
Filed:
Feb. 21, 2007
Applicants:
Yusuke Watanabe, Toyota, JP;
Kazutaka Iizuka, Nissin, JP;
Osamu Yamazaki, Saitama, JP;
Inventors:
Assignee:
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25D 13/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A separator for use in a fuel cell has an iron-based hydrous oxide film formed on a passive film of a peripheral surface except a gas channel of a separator substrates of SUS by cathodic electrolysis treatment in an alkaline solution and further a resin layer of an electrodeposited water-soluble resin formed on the iron-based hydrous oxide film.