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:
Jan. 23, 2024
Filed:
Mar. 31, 2020
Denso Corporation, Kariya, JP;
Nippon Steel Corporation, Tokyo, JP;
Tetsuya Aoki, Kariya, JP;
Makoto Taniguchi, Kariya, JP;
Atsuo Ishizuka, Kariya, JP;
Satoshi Doi, Kariya, JP;
Keiichi Okazaki, Kariya, JP;
Hiroshi Fujimura, Tokyo, JP;
Tatsuya Takase, Tokyo, JP;
DENSO CORPORATION, Kariya, JP;
NIPPON STEEL CORPORATION, Tokyo, JP;
Abstract
Disclosed is a method of manufacturing a core sheet. The core sheet has an annular core back portion and a plurality of tooth portions extending from the core back portion toward a radial center thereof. The method includes a blanking step, a rolling step and a removing step. In the removing step, an insulation coating, which is on a region of a grain-oriented magnetic steel sheet for forming a band-shaped core back portion, on a band-shaped core back portion of a sheet piece or on the core back portion of the core sheet, is at least partially removed.