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:
Dec. 04, 2018
Filed:
Dec. 28, 2012
Applicant:
Jfe Steel Corporation, Tokyo, JP;
Inventors:
Shigehiro Takajo, Tokyo, JP;
Seiji Okabe, Tokyo, JP;
Hirotaka Inoue, Tokyo, JP;
Michiro Komatsubara, Tokyo, JP;
Assignee:
JFE Steel Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 1/16 (2006.01); H01F 1/147 (2006.01); C22C 38/00 (2006.01); C22C 38/04 (2006.01); C22C 38/60 (2006.01); C22C 38/02 (2006.01); C22C 38/08 (2006.01); C22C 38/12 (2006.01); C22C 38/16 (2006.01); C22C 38/18 (2006.01); C21D 8/12 (2006.01); B23K 15/00 (2006.01); C22C 38/34 (2006.01); H01F 41/02 (2006.01); B23K 26/00 (2014.01); B23K 26/082 (2014.01); B23K 26/0622 (2014.01); B23K 26/354 (2014.01); B23K 26/352 (2014.01); C21D 6/00 (2006.01); B23K 101/18 (2006.01); B23K 101/36 (2006.01); B23K 103/04 (2006.01); B23K 103/00 (2006.01);
U.S. Cl.
CPC ...
H01F 1/14775 (2013.01); B23K 15/0006 (2013.01); B23K 26/0006 (2013.01); B23K 26/0622 (2015.10); B23K 26/082 (2015.10); B23K 26/352 (2015.10); B23K 26/354 (2015.10); C21D 8/1294 (2013.01); C22C 38/00 (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 38/08 (2013.01); C22C 38/12 (2013.01); C22C 38/16 (2013.01); C22C 38/18 (2013.01); C22C 38/34 (2013.01); C22C 38/60 (2013.01); H01F 1/16 (2013.01); H01F 41/02 (2013.01); B23K 2101/18 (2018.08); B23K 2101/36 (2018.08); B23K 2103/04 (2018.08); B23K 2103/50 (2018.08); C21D 6/008 (2013.01); C21D 2201/05 (2013.01);
Abstract
A grain-oriented electrical steel sheet exhibits reduced iron loss and reduced noise. The electrical steel sheet has magnetic domains refined by regions with a high lattice defect density being locally formed on the surface of or within the steel sheet, in which the regions with a high lattice defect density has a hardness, as measured by a micro Vickers hardness meter, equal to or lower than that of other regions.