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. 06, 2019
Filed:
Oct. 05, 2015
Applicant:
Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;
Inventors:
Assignee:
NIPPON STEEL CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21C 37/00 (2006.01); C21D 9/08 (2006.01); B21D 7/16 (2006.01); C21D 1/74 (2006.01); C21D 1/18 (2006.01); C22C 38/00 (2006.01); C22C 38/32 (2006.01); B21B 1/22 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/26 (2006.01); C22C 38/28 (2006.01); C23C 22/12 (2006.01);
U.S. Cl.
CPC ...
C21D 9/085 (2013.01); B21B 1/22 (2013.01); B21D 7/16 (2013.01); C21D 1/18 (2013.01); C21D 1/74 (2013.01); C22C 38/00 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/26 (2013.01); C22C 38/28 (2013.01); C22C 38/32 (2013.01); B21B 2001/225 (2013.01); C21D 2211/008 (2013.01); C21D 2241/00 (2013.01); C23C 22/12 (2013.01);
Abstract
A steel product bent by heating to 600° C. or more, specifically a heat treated steel product having high strength and excellent chemical conversion coating ability which has scale with FeO content of 90% or more, having a thickness of 1 μm or less on the surface.