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:
Sep. 05, 2023
Filed:
Jun. 17, 2021
Nippon Steel Corporation, Tokyo, JP;
Ichiro Tanaka, Tokyo, JP;
Kazutoshi Takeda, Tokyo, JP;
Minako Fukuchi, Tokyo, JP;
Shinsuke Takatani, Tokyo, JP;
Shuichi Yamazaki, Tokyo, JP;
NIPPON STEEL CORPORATION, Tokyo, JP;
Abstract
This electrical steel sheet includes a base steel sheet, a first insulation coating formed on a first surface of the base steel sheet and having adhesiveness, and a second insulation coating formed on a second surface of the base steel sheet which is a back surface to the first surface and having adhesiveness, in which an average pencil hardness of the first insulation coating is HB or higher and 3 H or lower, and an average pencil hardness of the second insulation coating is higher than the average pencil hardness of the first insulation coating.