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:
Jun. 09, 2015
Filed:
Mar. 07, 2013
Canon Kabushiki Kaisha, Tokyo, JP;
Kaishi Ohashi, Tokyo, JP;
Toshifumi Urakami, Yokohama, JP;
Toshihiro Ifuku, Yokohama, JP;
Yasushi Shimizu, Fujisawa, JP;
Tatsuo Furuta, Machida, JP;
Takanori Matsuda, Chofu, JP;
Makoto Kubota, Yokohama, JP;
Jumpei Hayashi, Chofu, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A vibration apparatus includes a vibrating body that includes a piezoelectric material having a lead content of less than 1000 ppm, and has an electromechanical energy converting element having an electrode; and a control unit that applies at least two driving voltages to the electromechanical energy converting element, and generates a combined vibration by providing a time phase difference to the vibrating body and generating multiple stable waves having mutually different orders; wherein the control unit changes at least one of the voltage amplitude ratio and time phase difference of at least two driving voltages, so as to change the amplitude distribution of the combined vibration.