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:
Jan. 10, 2024
Mazda Motor Corporation, Hiroshima, JP;
Naoki Itasaka, Aki-gun, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
A rotor having a changeable magnetic force is provided, which includes a rotor core and magnetic pole parts disposed therein. The rotor core includes a flange part opposing a stator, a base part located inward of the flange part, and a connecting part coupling the base part to the flange part. Each magnetic pole part includes a fixed magnetic-force magnet and a variable magnetic-force magnet disposed in the flange part, and a cavity part defined by the connecting part, between the flange part and the base part. By bisecting each fixed magnetic-force magnet in line symmetry into a pair of magnet pieces, an inside coupling part is provided in the flange part. A first pillar part is comprised of outside coupling parts that bridge the flange part and the base part, and are disposed circumferentially inward of the center position of the circumferential width of each magnet piece.