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:
Apr. 05, 2022
Filed:
Aug. 02, 2017
Applicant:
Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;
Inventors:
Yoshiaki Natori, Tokyo, JP;
Hiroyoshi Yashiki, Tokyo, JP;
Masaru Takahashi, Tokyo, JP;
Kazutoshi Takeda, Tokyo, JP;
Takuya Matsumoto, Tokyo, JP;
Assignee:
NIPPON STEEL CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 1/147 (2006.01); C22C 38/00 (2006.01); C21D 8/12 (2006.01); C22C 38/60 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/14 (2006.01); C22C 38/34 (2006.01); C22C 38/42 (2006.01); C22C 38/50 (2006.01);
U.S. Cl.
CPC ...
H01F 1/14783 (2013.01); C21D 8/12 (2013.01); C21D 8/1283 (2013.01); C22C 38/00 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/004 (2013.01); C22C 38/008 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/14 (2013.01); C22C 38/34 (2013.01); C22C 38/42 (2013.01); C22C 38/50 (2013.01); C22C 38/60 (2013.01); H01F 1/147 (2013.01); C21D 8/1222 (2013.01); C21D 8/1233 (2013.01); C21D 8/1272 (2013.01);
Abstract
A non-oriented electrical steel sheet has a predetermined chemical composition, and when an average value of Mn concentrations in a range from a surface of a base iron to a position where a depth from the surface of the base iron is 2 μm is set to [Mn], and an Mn concentration at a position where a depth from the surface of the base iron is 10 μm is set to [Mn], the base iron satisfies the following expression 1.0.1≤[Mn]/[Mn]≤0.9  (Expression 1)