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. 08, 2021
Filed:
Jan. 24, 2017
Applicant:
Jfe Steel Corporation, Tokyo, JP;
Inventors:
Assignee:
JFE Steel Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 1/18 (2006.01); C21D 8/12 (2006.01); H01F 1/147 (2006.01); C22C 38/00 (2006.01); C21D 9/46 (2006.01); H01F 41/22 (2006.01);
U.S. Cl.
CPC ...
H01F 1/18 (2013.01); C21D 8/1222 (2013.01); C21D 8/1233 (2013.01); C21D 8/1294 (2013.01); C21D 9/46 (2013.01); C22C 38/00 (2013.01); H01F 1/147 (2013.01); H01F 41/22 (2013.01); C21D 8/1255 (2013.01); C21D 2201/05 (2013.01);
Abstract
An excellent low noise property and excellent low iron loss property are obtained. A grain-oriented electrical steel sheet includes refined magnetic domains formed by electron beam irradiation. When the maximum magnetic flux density is 1.7 T, the grain-oriented electrical steel sheet has a residual magnetic flux density of 0.1 to 0.7 times the residual magnetic flux density before the electron beam irradiation and a maximum magnetizing force of 1.1 to 2.0 times the maximum magnetizing force before the electron beam irradiation.