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.

Date of Patent:
Jun. 02, 2026

Filed:

Jun. 17, 2022
Applicant:

Nidec Corporation, Kyoto, JP;

Inventors:

Ryoma Sasaki, Kyoto, JP;

Kentaro Hirose, Kyoto, JP;

Shigeru Maeda, Kyoto, JP;

Assignee:

NIDEC CORPORATION, Kyoto, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 21/02 (2006.01); H02K 7/09 (2006.01);
U.S. Cl.
CPC ...
H02K 21/024 (2013.01); H02K 7/09 (2013.01); H02K 2213/09 (2013.01);
Abstract

A rotary electric machine includes: a rotor having a shaft extending in an axial direction and rotor magnets arranged along a circumferential direction; a stator having a coil and surrounding the rotor; a housing supporting the stator; a pair of magnetic bearings on opposite sides in the axial direction of the rotor magnet; and a position adjusting member held by the housing. The stator holds the rotor rotatably in the axial direction by a field current flowing through the coil. The magnetic bearing includes a cylindrical inner magnet fixed to the rotor and a cylindrical outer magnet fixed to the housing and surrounding the inner magnet, and holds the rotor rotatably in the radial direction. The rotor has a stepped surface facing the axial direction. The position adjusting member has an opposing surface facing the stepped surface, and is movable in the axial direction with respect to the housing.


Find Patent Forward Citations

Sasaki, Ryoma. (2026). Rotary electric machine (U.S. Patent No. 12647008). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12647008

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…