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. 13, 2021
Filed:
Jul. 13, 2018
Applicant:
Nippon Steel Corporation, Tokyo, JP;
Inventors:
Seiki Takebayashi, Tokyo, JP;
Shuichi Nakamura, Tokyo, JP;
Hiroyasu Fujii, Tokyo, JP;
Yoshiyuki Ushigami, Tokyo, JP;
Assignee:
NIPPON STEEL CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 22/05 (2006.01); C23C 28/00 (2006.01); C22C 38/02 (2006.01); C22C 38/06 (2006.01); C22C 38/60 (2006.01); C21D 8/12 (2006.01); C21D 9/46 (2006.01); C22C 38/00 (2006.01);
U.S. Cl.
CPC ...
C21D 8/1222 (2013.01); C21D 8/1233 (2013.01); C21D 8/1255 (2013.01); C21D 8/1283 (2013.01); C21D 9/46 (2013.01); C22C 38/001 (2013.01); C22C 38/004 (2013.01); C22C 38/02 (2013.01); C22C 38/06 (2013.01); C22C 38/60 (2013.01); C23C 22/05 (2013.01); C23C 28/00 (2013.01);
Abstract
A grain-oriented electrical steel sheet according to an aspect of the present invention includes: a steel sheet; an intermediate layercontaining Si and O, arranged on the steel sheet; and an insulation coatingarranged on the intermediate layer, in which the intermediate layercontains a metal phosphide, a thickness of the intermediate layeris 4 nm or more, and an abundance of the metal phosphidepresent is 1% to 30% by cross-sectional area fraction in a cross section of the intermediate layer