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:
Jun. 06, 2017
Filed:
Oct. 25, 2012
Applicant:
Nabtesco Corporation, Tokyo, JP;
Inventors:
Takahito Azuma, Tsu, JP;
Hiroki Mizuhashi, Tsu, JP;
Assignee:
NABTESCO CORPORATION, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H02K 16/00 (2006.01); H02K 7/00 (2006.01); H02K 7/116 (2006.01); H02K 21/24 (2006.01);
U.S. Cl.
CPC ...
H02K 7/003 (2013.01); H02K 7/116 (2013.01); H02K 16/00 (2013.01); H02K 21/24 (2013.01);
Abstract
A driving device is provided with a gear unit and a plurality of motors. The gear unit includes a plurality of input shafts supported by a supporting member, and a driven member to which the plurality of input shafts is engaged. Each motor rotor is respectively attached to a corresponding one of the input shafts. Each motor stator is attached to a housing that is detachably attached to the supporting member. When the housing is attached to the supporting member, phase angles of the rotors of all of the motors are equal.