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. 21, 2025
Filed:
Jan. 16, 2020
Applicant:
Nippon Steel Corporation, Tokyo, JP;
Inventors:
Assignee:
NIPPON STEEL CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 1/02 (2005.12); C22C 38/00 (2005.12); C22C 38/02 (2005.12); C22C 38/04 (2005.12); C22C 38/06 (2005.12); C22C 38/20 (2005.12); C22C 38/28 (2005.12); C22C 38/34 (2005.12); C22C 38/42 (2005.12); C22C 38/50 (2005.12); C22C 38/58 (2005.12); H02K 1/12 (2005.12); H02K 1/22 (2005.12); H02K 5/04 (2005.12);
U.S. Cl.
CPC ...
H02K 1/02 (2012.12); C22C 38/002 (2012.12); C22C 38/005 (2012.12); C22C 38/008 (2012.12); C22C 38/02 (2012.12); C22C 38/04 (2012.12); C22C 38/06 (2012.12); C22C 38/20 (2012.12); C22C 38/28 (2012.12); C22C 38/34 (2012.12); C22C 38/42 (2012.12); C22C 38/50 (2012.12); C22C 38/58 (2012.12); H02K 1/12 (2012.12); H02K 1/22 (2012.12); H02K 5/04 (2012.12); C22C 2202/02 (2012.12);
Abstract
A non-oriented electrical steel sheet has a chemical composition containing, in terms of % by mass, C: 0.0015% or less and Si: 2.5 to 4.0% and having an average crystal grain size of 10 to 40 μm, and an internal oxidation layer having a thickness of 0.5 to 3.0 μm present in a sheet thickness direction of a surface thereof.