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. 24, 2024
Filed:
Jan. 16, 2020
Nippon Steel Corporation, Tokyo, JP;
Satoshi Arai, Tokyo, JP;
Yoshiyuki Ushigami, Tokyo, JP;
Hideyuki Hamamura, Tokyo, JP;
Shinji Yamamoto, Tokyo, JP;
Shunsuke Okumura, Tokyo, JP;
NIPPON STEEL CORPORATION, Tokyo, JP;
Abstract
The method for manufacturing a grain-oriented electrical steel sheet is a method for manufacturing a grain-oriented electrical steel sheet including a strain region forming process of irradiating the grain-oriented electrical steel sheet having a base steel sheet (), an intermediate layer () disposed to be in contact with the base steel sheet (), and an insulation coating () disposed to be in contact with the intermediate layer () with an electron beam and forming a strain region (D) which extends in a direction intersecting a rolling direction of the base steel sheet () on a surface of the base steel sheet (), wherein, in the strain region forming process, a temperature of a central portion of the strain region (D) in the rolling direction of the base steel sheet () and an extension direction of the strain region (D) is heated to 800° C. or higher and 2000° C. or lower.