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:
Dec. 16, 2025

Filed:

Feb. 25, 2022
Applicant:

Aisin Corporation, Aichi, JP;

Inventors:

Masayuki Ikemoto, Kariya, JP;

Takahiro Tsukamoto, Kariya, JP;

Takahiro Odagi, Kariya, JP;

Assignee:

AISIN CORPORATION, Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/32 (2006.01); H02K 1/276 (2022.01); H02K 9/19 (2006.01);
U.S. Cl.
CPC ...
H02K 1/32 (2013.01); H02K 1/276 (2013.01); H02K 9/19 (2013.01);
Abstract

A rotor and a shaft hole is located at a position in a rotor shaft within a range in an axial direction in which a rotor core is located, and a weir portion, the shaft hole, and a cooling medium discharge hole are located in this order from one side in the axial direction.


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