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:
Jan. 19, 2021
Filed:
Jun. 18, 2019
Applicants:
Satoshi Takata, Toyota, JP;
Masayuki Itagaki, Tokyo, JP;
Inventors:
Satoshi Takata, Toyota, JP;
Masayuki Itagaki, Tokyo, JP;
Assignees:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
TOKYO UNIVERSITY OF SCIENCE FOUNDATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/00 (2016.01); H01M 8/0228 (2016.01); H01M 8/1039 (2016.01); H01M 8/0215 (2016.01); H01M 8/021 (2016.01); H01M 8/1018 (2016.01);
U.S. Cl.
CPC ...
H01M 8/0228 (2013.01); H01M 8/021 (2013.01); H01M 8/0215 (2013.01); H01M 8/1039 (2013.01); H01M 2008/1095 (2013.01); H01M 2300/0082 (2013.01);
Abstract
An object of the present disclosure is to provide a fuel cell separator having a low contact resistance due to a tin oxide film and having an excellent corrosion resistance. An embodiment is a method for manufacturing a fuel cell separator including a stainless steel substrate. The method includes forming the tin oxide film on a surface of the stainless steel substrate; and attaching phosphoric acid or phosphate to at least a defective portion in the tin oxide film.