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:
Aug. 04, 2026

Filed:

Sep. 24, 2024
Applicant:

Nidec Corporation, Kyoto, JP;

Inventors:

Shunichi Ochitani, Kyoto, JP;

Masahiro Otani, Kyoto, JP;

Takuro Kawano, Kyoto, JP;

Rei Sakai, Kyoto, JP;

Assignee:

NIDEC CORPORATION, Kyoto, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 25/08 (2006.01); F04D 29/056 (2006.01);
U.S. Cl.
CPC ...
F04D 25/08 (2013.01); F04D 29/0563 (2013.01);
Abstract

In a motor, a rotor is supported by a bearing to be rotatable about a central axis extending in an axial direction. The rotor includes a rotor lid portion and a first protruding portion. The rotor lid portion extends in a radial direction. The first protruding portion protrudes in one axial direction from the rotor lid portion, extends along the central axis, and is rotatably supported by a bearing. The bearing has a cylindrical shape extending in the axial direction and surrounds the first protruding portion. A hole extending in another axial direction is located in an end portion in the one axial direction of the first protruding portion. An axial length of the hole is less than about half of an axial length of the first protruding portion.


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