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:
May. 14, 2019
Filed:
May. 25, 2016
Murata Manufacturing Co., Ltd., Nagaokakyo-shi, Kyoto-fu, JP;
Seishiro Goto, Nagaokakyo, JP;
Megumi Otsuka, Nagaokakyo, JP;
Junichi Nomura, Nagaokakyo, JP;
Koichi Hayashi, Nagaokakyo, JP;
MURATA MANUFACTURING CO., LTD., Nagaokakyo-Shi, Kyoto-Fu, JP;
Abstract
A driving device that causes a movable body to move stably with minimal backward movement. The driving device includes a plate-shaped driving unit with an elastic body and a piezoelectric element joined to a main surface of the elastic body. Moreover, the movable body is disposed into a cavity of the elastic body and is moved by being pitch fed when the driving unit is driven. The driving unit vibrates with flexural vibration and one more other vibration modes or with vibration of a coupled mode in which the flexural vibration and the other vibration mode are coupled with each other.