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:
Dec. 11, 2012
Filed:
Aug. 05, 2010
Toshiharu Tsubata, Tokyo, JP;
Yoshihiro Ue, Hidaka, JP;
Toshiharu Tsubata, Tokyo, JP;
Yoshihiro Ue, Hidaka, JP;
Olympus Corporation, Tokyo, JP;
Abstract
An ultrasonic motor includes a vibrator, a mobile unit, a holding mechanism, and a pressing mechanism. The vibrator generates elliptical vibration by degenerating different vibration modes and having a phase difference between the different vibration modes. The mobile unit is configured to be movable relative to the vibrator. The holding mechanism holds and fixes the vibrator in a direction substantially parallel to the direction of the relative movement of the mobile unit. The pressing mechanism presses the vibrator against the mobile unit. The holding mechanism includes an adjustment unit for adjusting the resonant frequencies of the different vibration modes of the vibrator to substantially match each other when the ultrasonic motor is driven.