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:
Jan. 06, 2026

Filed:

Aug. 16, 2023
Applicant:

Sanyo Denki Co., Ltd., Tokyo, JP;

Inventor:

Manabu Horiuchi, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/27 (2022.01); H02K 1/276 (2022.01); H02K 29/03 (2006.01);
U.S. Cl.
CPC ...
H02K 1/276 (2013.01); H02K 29/03 (2013.01);
Abstract

Provided is a rotor of an interior permanent magnet synchronous motor, including a plurality of poles, in which: each of the plurality of poles includes a main magnet; between the adjacent poles, an auxiliary magnet is provided at an end of the main magnet; and letting a d axis be a center of a rotor magnetic pole formed by the main magnet, and letting a q axis be between magnetic poles of the rotor magnetic poles, an angle formed by a magnetization direction of the auxiliary magnet and the q axis ranges from −45° to +45°.


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