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:
Feb. 06, 2024
Filed:
Nov. 17, 2017
Applicant:
Jfe Steel Corporation, Tokyo, JP;
Inventors:
Takashi Terashima, Tokyo, JP;
Makoto Watanabe, Tokyo, JP;
Toshito Takamiya, Tokyo, JP;
Tomoyuki Okubo, Tokyo, JP;
Assignee:
JFE STEEL CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C 22/78 (2006.01); C23G 1/08 (2006.01); H01F 1/147 (2006.01); H01F 27/34 (2006.01); H01F 27/245 (2006.01);
U.S. Cl.
CPC ...
H01F 1/147 (2013.01); C23C 22/78 (2013.01); C23G 1/083 (2013.01); H01F 27/34 (2013.01); H01F 27/245 (2013.01);
Abstract
A grain-oriented electrical steel sheet having an insulating film disposed on a surface thereon. The insulating film having a chemical composition comprising Si, P, O, and at least one selected from the group consisting of Mg, Ca, Ba, Sr, Zn, Al, Mn, and Co. The insulating film has a crystallinity in a range of 20% or more, and a minimum tension provided to the steel sheet by the insulating film at a temperature in a range of 100° C. to 200° C. is 10 MPa or more.