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:
Jan. 01, 2013
Filed:
Mar. 10, 2010
Yoshihiko Suzuki, Funabashi, JP;
Eiji Matsukawa, Yotsukaido, JP;
Kazuyasu Oone, Saitama, JP;
Masaaki Tanabe, Fujisawa, JP;
Yoshihiko Suzuki, Funabashi, JP;
Eiji Matsukawa, Yotsukaido, JP;
Kazuyasu Oone, Saitama, JP;
Masaaki Tanabe, Fujisawa, JP;
Nikon Corporation, Tokyo, JP;
Abstract
Provided is a vibration actuator comprising an elastic body; an electromechanical transducer that causes the elastic body to vibrate; and a rotating body that rotates in response to a drive force received from contact with the elastic body at a vibrational antinode thereof, wherein the rotating body contacts the elastic body at a prescribed position along a direction in which an axis of the rotation extends. In the vibration actuator, the elastic body includes an elastic body contact member that is arranged in a region that includes the vibrational antinode of the elastic body, the rotating body includes a rotating body contact member that receives a drive force by contacting the elastic body contact member, and one of the elastic body contact member and the rotating body contact member has a contact surface that is oriented diagonally to the axis of rotation and contacts the other of the elastic body contact member and the rotating body contact member.