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:
Feb. 21, 2023
Filed:
Mar. 26, 2021
Applicant:
Honda Motor Co., Ltd., Tokyo, JP;
Inventors:
Yuichi Hori, Tochigi, JP;
Tomotsugu Takahashi, Tochigi, JP;
Kei Matsumoto, Tochigi, JP;
Seitaro Nakamura, Tochigi, JP;
Assignee:
HONDA MOTOR CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21B 13/02 (2006.01); H01M 8/0276 (2016.01); H01M 8/0247 (2016.01); H01M 8/0258 (2016.01);
U.S. Cl.
CPC ...
B21B 13/02 (2013.01); H01M 8/0247 (2013.01); H01M 8/0258 (2013.01); H01M 8/0276 (2013.01);
Abstract
In a manufacturing method for fuel cell separators having a seal part of convex shape that is pushed when superimposed with another separator, the method includes: a first pressing step of imparting work hardening to an entire region to become a convex shape configuring the seal part; and a second pressing step of press molding the region work hardened in the first pressing step so as to become a convex shape.