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:
May. 05, 2026
Filed:
Nov. 18, 2021
Mitsubishi Electric Corporation, Tokyo, JP;
Osaka University, Osaka, JP;
Haruyuki Kometani, Tokyo, JP;
Ryoji Miyatake, Tokyo, JP;
Atsushi Yamamoto, Tokyo, JP;
Noboru Niguchi, Osaka, JP;
Katsuhiro Hirata, Osaka, JP;
Hironori Suzuki, Osaka, JP;
Takuya Ito, Osaka, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
OSAKA UNIVERSITY, Suita, JP;
Abstract
A permanent magnet-type rotary electric machine comprises: a stator including: a stator core having a plurality of stator teeth formed circumferentially; stator coils arranged in the respective bottoms of a plurality of stator slots formed between the stator teeth and wound on the stator teeth in a concentrated winding manner; and stator magnets arranged near the respective openings of the plurality of stator slots, a first rotor having a plurality of pole pieces and disposed coaxially with the stator to face the stator magnets; and a second rotor having a plurality of permanent magnets and disposed coaxially with the first rotor to face the first rotor, wherein the circumferential width of stator teeth positioned between the adjacent two of the stator magnets is narrower than the circumferential width of the stator slots.