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. 29, 2020
Filed:
Aug. 15, 2016
Applicant:
Mitsui High-tec, Inc., Kitakyushu, JP;
Inventor:
Kiyohisa Maki, Kitakyushu, JP;
Assignee:
MITSUI HIGH-TEC, INC., Kitakyushi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22F 1/18 (2006.01); B21D 13/02 (2006.01); B30B 15/30 (2006.01); H01M 8/0206 (2016.01); C21D 9/46 (2006.01); H01M 8/021 (2016.01);
U.S. Cl.
CPC ...
C22F 1/183 (2013.01); B21D 13/02 (2013.01); B30B 15/30 (2013.01); C21D 9/46 (2013.01); H01M 8/021 (2013.01); H01M 8/0206 (2013.01); C21D 2241/00 (2013.01);
Abstract
A method of manufacturing a separator includes subjecting a metal thin sheet material to be transported to stepwise forming working at an identical location by a plurality of press machines having different working shapes and arranged sequentially from an upstream side to a downstream side in a transport direction of the metal thin sheet material to form a flow passage groove. The thin sheet material is subjected to annealing treatment in at least one space of spaces between the press machines arranged adjacent to each other in the transport direction of the thin sheet material.