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:
Mar. 11, 2025
Filed:
Sep. 09, 2022
Nidec Corporation, Kyoto, JP;
Atsushi Yawata, Kyoto, JP;
Yasuhiro Utsunomiya, Kyoto, JP;
NIDEC CORPORATION, Kyoto, JP;
Abstract
A motor includes a stator, a rotor, and a magnetic sensor. The stator includes an annular stator core. The stator core surrounds a central axis extending in an axial direction. The rotor is rotatable about the central axis. The rotor includes a first magnet, a second magnet, and a spacer. The first magnet is outward in a radial direction with respect to the stator core. The second magnet extends in one axial direction with respect to the first magnet and the stator core. The spacer is between the first magnet and the second magnet in the axial direction. The magnetic sensor detects a magnetic force of the second magnet. The spacer is made of a non-magnetic material.