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:
Apr. 28, 2026
Filed:
Jun. 20, 2024
Mikuni Corporation, Tokyo, JP;
Shin Suzuki, Kanagawa, JP;
MIKUNI CORPORATION, Tokyo, JP;
Abstract
A permanent magnet embedded motor includes: a stator of an annular shape; a rotor, arranged inside the stator, including a rotor core and a permanent magnet, and rotating about a predetermined axis. The rotor core includes an insertion hole arranged in a circumferential direction and a filling part provided adjacent to the insertion hole for filling with an adhesive. The permanent magnet is inserted into the insertion hole. The insertion hole includes a wall surface to which the permanent magnet adheres. At one opening end of the insertion hole, the filling part is of a shape obtained by cutout in a stepped-down manner in an inner edge area of the insertion hole corresponding to the wall surface.