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:
Aug. 20, 2019
Filed:
Jun. 28, 2016
Applicant:
Toyota Boshoku Kabushiki Kaisha, Aichi-ken, JP;
Inventor:
Kazuyuki Hirata, Toyota, JP;
Assignee:
TOYOTA BOSHOKU KABUSHIKI KAISHA, Aichi-ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 13/02 (2006.01); B21D 53/04 (2006.01); H01M 8/0208 (2016.01); H01M 8/021 (2016.01); H01M 8/0254 (2016.01);
U.S. Cl.
CPC ...
B21D 13/02 (2013.01); B21D 53/04 (2013.01); H01M 8/021 (2013.01); H01M 8/0208 (2013.01); H01M 8/0254 (2013.01);
Abstract
A method for forming bulging portions on a metal plate by performing cold-pressing on the metal plate is provided. The method includes a first step and a second step. In the first step, a pre-formed body including pre-formed bulging portions is formed with a first die. Each pre-formed bulging portion includes sidewalls. Each sidewall includes dents. In the second step, the sidewalls are pressed by a second die so that the dents of the pre-formed body disappear.