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. 30, 2024
Filed:
Jan. 16, 2020
Nippon Steel Corporation, Tokyo, JP;
Yoshiyuki Ushigami, Tokyo, JP;
Shinji Yamamoto, Tokyo, JP;
Hideyuki Hamamura, Tokyo, JP;
Takashi Kataoka, Tokyo, JP;
Shunsuke Okumura, Tokyo, JP;
NIPPON STEEL CORPORATION, Tokyo, JP;
Abstract
The grain-oriented electrical steel sheet according to the present embodiment is a 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 (). The grain-oriented electrical steel sheet according to the present embodiment includes a surface of the base steel sheet () having a strain region (D) which extends in a direction intersecting a rolling direction of the base steel sheet (), and a crystalline phosphorus oxide MPOpresent in the insulation coating () on the strain region (D) in a cross-sectional view of a surface parallel to the rolling direction and a sheet thickness direction of the base steel sheet (). (M means at least one or both of Fe and Cr.)