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:
Nov. 11, 2025
Filed:
Sep. 18, 2020
Nippon Steel Corporation, Tokyo, JP;
Kazutoshi Takeda, Tokyo, JP;
Shuichi Yamazaki, Tokyo, JP;
Takuya Matsumoto, Tokyo, JP;
Hiroyasu Fujii, Tokyo, JP;
Masaru Takahashi, Tokyo, JP;
NIPPON STEEL CORPORATION, Tokyo, JP;
Abstract
There is provided a non-oriented electrical steel sheet that includes a base metal steel sheet and an insulating coating film that is formed on a surface of the base metal steel sheet, wherein the insulating coating film mainly contains metal phosphate, organic resin, and water-soluble organic compound, the metal phosphate contains at least aluminum as a metallic element, the organic resin has an SP value being within a range of 18.0 (MPa)or more to less than 24.0 (MPa), the water-soluble organic compound has an SP value being within a range of 19.0 (MPa)or more to less than 35.0 (MPa), and when measurement by X-ray diffractometry is performed on the insulating coating film, a degree of crystallinity of aluminum phosphate calculated from a peak from the metal phosphate is within a range of 0.5 to 5.0%.