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. 02, 2014
Filed:
May. 28, 2012
Tatsuhiko Sakai, Tokyo, JP;
Yoshio Nakamura, Tokyo, JP;
Kazuyuki Tashiro, Tokyo, JP;
Shohji Nagano, Tokyo, JP;
Shuichi Yamazaki, Tokyo, JP;
Koji Hirano, Tokyo, JP;
Tatsuhiko Sakai, Tokyo, JP;
Yoshio Nakamura, Tokyo, JP;
Kazuyuki Tashiro, Tokyo, JP;
Shohji Nagano, Tokyo, JP;
Shuichi Yamazaki, Tokyo, JP;
Koji Hirano, Tokyo, JP;
Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;
Abstract
To provide a grain oriented electrical steel sheet that can securely suppress propagation of lateral strain, and can make a product even from a portion where the lateral strain occurs. A grain oriented electrical steel sheet of the present invention has a linearly altered portiongenerated in a glass coating filmat one of side edges of a steel sheet, in a continuous line or in a discontinuous broken line in a direction parallel with a rolling direction of the steel sheet, and having a composition different from a composition in other portions of the glass coating film. An average value of a deviation angle of a direction of an axis of easy magnetization of crystal grains relative to the rolling direction is 0° or more and 20° or less in a base metal iron portion of the steel sheetat a position along a width direction of the steel sheet, the position corresponding to the linearly altered portion