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:
Jun. 02, 2026
Filed:
May. 10, 2022
Nidec Corporation, Kyoto, JP;
Yosuke Tanaka, Kyoto, JP;
Takeshi Honda, Kyoto, JP;
Hirofumi Muto, Kyoto, JP;
Hideki Tsuji, Kyoto, JP;
Yuya Danjo, Kyoto, JP;
NIDEC CORPORATION, Kyoto, JP;
Abstract
A rotor includes a columnar rotor core, having multiple core plates laminated in a thickness direction and a magnet insertion hole extending in an axial direction; and a magnet inserted in the magnet insertion hole. The core plates have multiple first core plates. The first core plates are continuously laminated in the axial direction. Each of the first core plates includes a contact portion and a deformation permitting portion. The contact portion defines a portion of an inner surface of the magnet insertion hole and contacts with the magnet. The deformation permitting portion is located on an opposite side of the magnet with the contact portion in between when the first core plates are viewed in the thickness direction, and permits deformation of the contact portion. Multiple contact portions in the first core plates overlap at least partially when the rotor core is viewed in the axial direction.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile