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:
Jul. 09, 2024
Filed:
Dec. 24, 2019
Nippon Steel Corporation, Tokyo, JP;
Satoshi Arai, Tokyo, JP;
Hideyuki Hamamura, Tokyo, JP;
Kazutoshi Takeda, Tokyo, JP;
Takeo Aramaki, Tokyo, JP;
Hirotoshi Tada, Tokyo, JP;
NIPPON STEEL CORPORATION, Tokyo, JP;
Abstract
This grain-oriented electrical steel sheet includes a base steel sheet, a forsterite-based primary film disposed on a surface of the base steel sheet, and a phosphate-based tension-imparting film containing no chromium, which is disposed on a surface of the primary film. In a case where a Ti content and a S content are respectively expressed as XTi and XS, by mass %, the forsterite-based primary film satisfies Expression (1) and Expression (2). A strain-introduced magnetic domain control is performed on the grain-oriented electrical steel sheet0.10≤XTi/XS≤10.00 Expression (1)XTi+XS≥0.10 mass %. Expression (2)