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. 02, 2021
Filed:
Apr. 05, 2017
Applicant:
Nidec Corporation, Kyoto, JP;
Inventors:
Hideki Nishimura, Kyoto, JP;
Yoichi Sekii, Kyoto, JP;
Assignee:
NIDEC CORPORATION, Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 26/10 (2006.01); G02B 7/18 (2006.01); H02K 1/27 (2006.01); H02K 7/08 (2006.01); H02K 7/14 (2006.01); G02B 7/182 (2006.01);
U.S. Cl.
CPC ...
G02B 26/105 (2013.01); G02B 7/1821 (2013.01); H02K 1/2706 (2013.01); H02K 1/2786 (2013.01); H02K 7/08 (2013.01); H02K 7/083 (2013.01); H02K 7/14 (2013.01);
Abstract
This rotary drive apparatus includes a stationary portion including a stator; and a rotating portion supported through a bearing portion to be rotatable about a central axis extending in a vertical direction with respect to the stationary portion, the rotating portion including a magnet arranged opposite to the stator. The bearing portion includes an upper bearing portion, and a lower bearing portion arranged below the upper bearing portion. A center of gravity of the rotating portion is located below an upper end of the upper bearing portion and above a lower end of the lower bearing portion.