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:
Mar. 10, 2026
Filed:
Jul. 27, 2023
Meidensha Corporation, Tokyo, JP;
Takuya Kurasawa, Tokyo, JP;
MEIDENSHA CORPORATION, Tokyo, JP;
Abstract
Each magnetic pole of an embedded magnet rotor includes an iron core in which a magnet is arranged, and has a first flux barrier and a second flux barrier at end portions of the magnet, respectively, across a magnetic pole center. The first flux barrier includes a first extending portion communicating with a first base portion and extending circumferentially from the first base portion toward the magnetic pole center. The second flux barrier includes a second extending portion arranged away from a second base portion with the iron core in between and extending in a circumferential direction from the second base portion side toward the magnetic pole center. Between the second base portion and the second extending portion, a magnetic flux bypass portion connecting an outer periphery and an inner periphery of a rotor in a radial direction by the iron core is formed.