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:
Mar. 06, 2012
Filed:
Sep. 23, 2008
Applicants:
Hiroto Inoue, Kyoto, JP;
Tamotsu Yamamoto, Hyogo, JP;
Inventors:
Hiroto Inoue, Kyoto, JP;
Tamotsu Yamamoto, Hyogo, JP;
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 17/94 (2006.01); H03M 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A rotary actuator includes a roller having a center shaft protruding along a center axis, a bearing for supporting the center shaft of the roller to allow the roller to rotate about the center axis, a ring magnet fixed to the center shaft of the roller, an elastic member having a ring shape provided between the center shaft of the roller and the bearing, and a fixed magnet facing the ring magnet. The ring magnet is alternately magnetized to an S-pole and an N-pole with predetermined angular intervals. This rotary actuator has a simple structure and operates with a preferable operation feeling.