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:
Aug. 04, 2026
Filed:
Jul. 22, 2024
Applicant:
Nidec Powertrain Systems Corporation, Zama, JP;
Inventors:
Hiroshi Shirai, Zama, JP;
Shun Kato, Zama, JP;
Assignee:
NIDEC POWERTRAIN SYSTEMS CORPORATION, Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 11/215 (2016.01); F16H 25/20 (2006.01); H02K 7/06 (2006.01); H02K 21/16 (2006.01);
U.S. Cl.
CPC ...
H02K 11/215 (2016.01); F16H 25/20 (2013.01); H02K 7/06 (2013.01); H02K 21/16 (2013.01); F16H 2025/2075 (2013.01); H02K 2207/03 (2013.01); H02K 2211/03 (2013.01);
Abstract
An actuator device includes a drive assembly that is movable in a first direction, a sensor magnet that extends in the first direction that is a magnetization direction, the sensor magnet being fixed to the drive assembly, and a magnetic sensor that opposes the sensor magnet in a second direction intersecting the first direction to detect a magnetic flux of the sensor magnet. As viewed from the second direction, a width of the sensor magnet at a portion where a barycenter of the sensor magnet is positioned is wider than a width of two ends of the sensor magnet in the first direction.