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. 23, 2017
Filed:
Aug. 15, 2013
Applicant:
Sanyo Denki Co., Ltd., Tokyo, JP;
Inventors:
Toshihito Miyashita, Tokyo, JP;
Manabu Horiuchi, Tokyo, JP;
Assignee:
SANYO DENKI CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 15/03 (2006.01); H02K 1/27 (2006.01); H02K 1/02 (2006.01);
U.S. Cl.
CPC ...
H02K 1/2706 (2013.01); H02K 1/02 (2013.01); H02K 1/276 (2013.01); H02K 15/03 (2013.01); Y10T 29/49012 (2015.01);
Abstract
Provided is a permanent magnet type motor capable of improving a demagnetization proof stress almost without lowering a generated torque, and reducing a torque ripple and a cogging torque by improving a gap magnetic flux density distribution. Portions having a low demagnetization proof stress of a plurality of permanent magnets incorporated into a rotor core are partially and equally demagnetized.