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.

Date of Patent:
Apr. 06, 2021

Filed:

Jan. 28, 2019
Applicant:

Nidec Sankyo Corporation, Nagano, JP;

Inventors:

Masao Tsuchihashi, Nagano, JP;

Tadashi Takeda, Nagano, JP;

Hiroshi Kitahara, Nagano, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 33/12 (2006.01); B06B 1/04 (2006.01); F16F 9/30 (2006.01);
U.S. Cl.
CPC ...
H02K 33/12 (2013.01); B06B 1/04 (2013.01); F16F 9/30 (2013.01); H02K 2201/18 (2013.01);
Abstract

An actuator may include a supporting body; a movable body; a first magnetic drive circuit; a second magnetic drive circuit. The first magnetic drive circuit may include a first coil and a first magnet. The second magnetic drive circuit may include a second coil and a second magnet. The actuator may further include a first yoke on a side of the first coil remote from the second coil; a second yoke on a side of the second coil remote from the first coil; and a third yoke between the first coil and the second coil. The first magnet may be held on a face of the first yoke or a face of the third yoke. The second magnet may be held on a face of the second yoke or a face of the third yoke. The third yoke may be thicker than the first and second yoke.


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