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:
Jun. 17, 2025
Filed:
Nov. 20, 2020
Applicant:
Nippon Steel Corporation, Tokyo, JP;
Inventors:
Hiroyasu Fujii, Tokyo, JP;
Jun Maki, Tokyo, JP;
Kazutoshi Takeda, Tokyo, JP;
Akira Akagi, Tokyo, JP;
Hiroyuki Mimura, Tokyo, JP;
Assignee:
NIPPON STEEL CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 1/147 (2006.01); B05D 3/02 (2006.01); B05D 7/14 (2006.01); C08K 3/32 (2006.01); H01F 41/02 (2006.01);
U.S. Cl.
CPC ...
H01F 1/147 (2013.01); B05D 3/0254 (2013.01); B05D 7/14 (2013.01); C08K 3/32 (2013.01); H01F 41/02 (2013.01); C08K 2003/327 (2013.01); C08K 2003/328 (2013.01);
Abstract
A non-oriented electrical steel sheet according to one embodiment of the present invention includes a base metal steel sheet, and a composite coating film composed of a Zn-containing phosphate and an organic resin, the composite coating film being formed on a surface of the base metal steel sheet, wherein: a content of Zn in the composite coating film is 10 mg/mor more per side; and the product of an amount of oxygen in the base metal steel sheet and a sheet thickness of the base metal steel sheet is 50 ppm·mm or less.