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:
Jun. 30, 2020
Filed:
Mar. 03, 2015
Applicant:
Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;
Inventors:
Jun Nitta, Futtsu, JP;
Tohru Yoshida, Chiba, JP;
Hiroshi Yoshida, Chiba, JP;
Nobuo Yoshikawa, Kimitsu, JP;
Shigeru Yonemura, Kisarazu, JP;
Assignee:
NIPPON STEEL CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 7/06 (2006.01); B21D 22/22 (2006.01); B21D 35/00 (2006.01); B21D 47/01 (2006.01); B21J 5/08 (2006.01); B21K 23/00 (2006.01); B21D 22/26 (2006.01); B21D 53/88 (2006.01);
U.S. Cl.
CPC ...
B21D 7/06 (2013.01); B21D 22/225 (2013.01); B21D 22/26 (2013.01); B21D 35/006 (2013.01); B21D 47/01 (2013.01); B21J 5/08 (2013.01); B21K 23/00 (2013.01); B21D 53/88 (2013.01);
Abstract
A method for manufacturing a press-formed product includes: a first step of preparing a long material having a bending portion; and a second step of decreasing curvature of the bending portion while restricting both ends of the long material in a longitudinal direction.