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:
Feb. 19, 2019
Filed:
Jun. 06, 2014
Applicant:
Komatsu Ltd., Minato-ku, Tokyo, JP;
Inventors:
Assignee:
Komatsu Ltd., Minato-ku, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/32 (2006.01); H02K 1/27 (2006.01); H02K 9/19 (2006.01); H02K 21/04 (2006.01); H02K 5/20 (2006.01);
U.S. Cl.
CPC ...
H02K 1/2706 (2013.01); H02K 1/2766 (2013.01); H02K 1/32 (2013.01); H02K 9/19 (2013.01); H02K 21/046 (2013.01); H02K 5/20 (2013.01);
Abstract
A motor includes: an annular stator attached in a housing; a rotor that is disposed in the stator and is rotatably supported by the housing; and a plurality of permanent magnets embedded in a rotor core of the rotor, in which the rotor core has embedding holes respectively in which the permanent magnets are fitted, and each of the embedding holes is formed with filling holes each continuous in an axial direction of the rotor core at diagonal positions of each of the permanent magnets.