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:
Feb. 04, 2014
Filed:
Apr. 21, 2011
Yuki Oda, Yokohama, JP;
Nobuyuki Kojima, Machida, JP;
Yuki Oda, Yokohama, JP;
Nobuyuki Kojima, Machida, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A vibration wave actuator includes a vibrator having at least an electro-mechanical energy conversion element and an elastic body to which the electro-mechanical energy conversion element is joined, with the elastic body including a contact portion formed therein, and a driven element that is in pressure contact with the contact portion of the vibrator and includes a magnetic substance. In addition, a vibrator holding portion holds the vibrator via a first elastic member having a stiffness lower than that of the vibrator, and a magnet is arranged on the vibrator holding portion such that the vibrator is placed between the driven element and the magnet.