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. 21, 2017
Filed:
Feb. 06, 2014
Applicant:
Jtekt Corporation, Osaka-shi, Osaka, JP;
Inventors:
Hiroshi Yoshikawa, Kadoma, JP;
Akira Hiramitsu, Okazaki, JP;
Assignee:
JTEKT CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 15/03 (2006.01); H02K 21/12 (2006.01); H02K 1/27 (2006.01); H01F 13/00 (2006.01);
U.S. Cl.
CPC ...
H02K 1/274 (2013.01); H01F 13/003 (2013.01); H02K 1/2773 (2013.01); H02K 15/03 (2013.01); H02K 2201/15 (2013.01);
Abstract
A magnet embedded rotor configured to provide an improved magnetization ratio of the field permanent magnets is provided. The magnet embedded rotor includes a first annular core in which first permanent magnets are embedded, and a second annular core in which second permanent magnets, which are independent from the first permanent magnets, are embedded. The magnet embedded rotor has a structure in which the second annular core is fitted onto the outer periphery of the first annular core. The first permanent magnets and the second permanent magnets constitute field permanent magnets.