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:
Oct. 29, 2013
Filed:
Aug. 05, 2011
Applicants:
Minoru Takashima, Tokyo, JP;
Hirotaka Inoue, Tokyo, JP;
Seiji Okabe, Tokyo, JP;
Inventors:
Assignee:
JFE Steel Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 3/30 (2006.01);
U.S. Cl.
CPC ...
Abstract
A grain oriented electrical steel sheet has grooves on one surface of the steel sheet formed for magnetic domain refining, the steel sheet including a forsterite film and a tension coating on front and back surfaces of the steel sheet, wherein the tension coating is applied on a surface with the grooves in a coating amount A (g/m) and is applied on a surface with no grooves in a coating amount B (g/m), the coating amounts A and B satisfying (1) and (2):3≦≦8  (1);and1.0<≦1.8  (2).