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:
Sep. 03, 2019
Filed:
Jul. 19, 2016
Applicant:
Nidec Sankyo Corporation, Suwa-gun, Nagano, JP;
Inventors:
Masaaki Ando, Nagano, JP;
Tadashi Takeda, Nagano, JP;
Shinichi Yoshikawa, Nagano, JP;
Toshifumi Tsuruta, Nagano, JP;
Assignee:
NIDEC SANKYO CORPORATION, Nagano, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 49/10 (2006.01); H02K 7/116 (2006.01); H02K 7/118 (2006.01);
U.S. Cl.
CPC ...
H02K 49/102 (2013.01); H02K 7/116 (2013.01); H02K 7/1185 (2013.01);
Abstract
A planetary gear speed reduction device may include a magnetic sun gear; a plurality of magnetic planetary gears which each revolve around the magnetic sun gear while rotating; and a magnetic internal gear arranged surrounding the multiple magnetic planetary gears from an outer circumferential side. An outside diameter of the magnetic sun gear and an outside diameter of the magnetic planetary gears may be equal.