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. 15, 2026
Filed:
Dec. 15, 2023
Nidec Corporation, Kyoto, JP;
Hsiu-Ying Lin, Taipei City, TW;
Guo-Jhih Yan, Taipei City, TW;
Keng-Chang Wu, Taipei City, TW;
Kuo-Min Wang, Taipei City, TW;
Sheng-Tse Wu, Taipei City, TW;
NIDEC CORPORATION, Kyoto, JP;
Abstract
A motor includes a rotor rotatable about a central axis, and a stator located on one axial side of the rotor. The rotor includes a plurality of side magnets whose magnetization direction is a circumferential direction and that are arranged in the circumferential direction, and a plurality of core pieces disposed between the side magnets in the circumferential direction. The core piece includes a core piece main body that is in close contact with side surfaces of the side magnets on a pair of side surfaces facing both sides in the circumferential direction, and an extended tooth portion located on one axial side of the core piece main body. The extended tooth portion protrudes to one axial side with respect to a surface facing the one axial side of the side magnet, and has a larger width dimension in the circumferential direction than that of the core piece main body.