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. 23, 2025
Filed:
Feb. 15, 2023
Applicant:
Ihi Corporation, Tokyo, JP;
Inventors:
Kai Iijima, Tokyo, JP;
Naoki Oiwa, Tokyo, JP;
Natsuki Yoneyama, Tokyo, JP;
Yuji Sasaki, Tokyo, JP;
Yoshihito Katsu, Tokyo, JP;
Hikaru Sugiura, Tokyo, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/27 (2022.01); H02K 1/28 (2006.01); H02K 15/03 (2006.01); H02K 15/12 (2006.01);
U.S. Cl.
CPC ...
H02K 15/03 (2013.01); H02K 1/27 (2013.01); H02K 1/28 (2013.01); H02K 15/12 (2013.01);
Abstract
A motor rotor includes a shaft body, a cylindrical magnet covering an outer circumferential surface of the shaft body, a cylindrical protective layer covering an outer circumferential surface of the magnet and an annular end ring having the shaft body inserted therethrough, and in contact with an end surface of the magnet. The end ring is fixed to the shaft body by an inner circumferential resin portion formed between an inner circumferential surface of the end ring and the outer circumferential surface of the shaft body.