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:
Aug. 18, 2020
Filed:
Jan. 17, 2019
Denso Corporation, Kariya, Aichi-pref., JP;
Nippon Steel & Sumitomo Metal Corporation, Chiyoda-ku, Tokyo, JP;
Tetsuya Aoki, Kariya, JP;
Takeshi Senoo, Kariya, JP;
Keiichi Okazaki, Kariya, JP;
Satoshi Doi, Kariya, JP;
Hiroshi Fujimura, Chiyoda-ku, JP;
Hiroaki Sato, Chiyoda-ku, JP;
DENSO CORPORATION, Kariya, Aichi-pref., JP;
NIPPON STEEL & SUMITOMO METAL CORPORATION, Chiyoda-ku, Tokyo, JP;
Abstract
A method is for manufacturing a core plate having an annular core back and teeth extending from the core back toward the center. The core plate is obtained by performing a punching step, a winding step, a straining step and an annealing step. At the straining step, compressive strain is applied to the core back or the band-shaped core back that is to be the core back after winding. At the annealing step, the core back or the band-shaped core back is annealed to be recrystallized after the applying of strain.