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. 29, 2009
Filed:
Aug. 03, 2006
Byung Woo Kang, Seoul, KR;
Burhanettin Koc, Kyungki-do, KR;
Jung Ho Ryu, Kyungki-do, KR;
Sang Min on, Seoul, KR;
Dong Kyun Lee, Seoul, KR;
Byung Woo Kang, Seoul, KR;
Burhanettin Koc, Kyungki-do, KR;
Jung Ho Ryu, Kyungki-do, KR;
Sang Min On, Seoul, KR;
Dong Kyun Lee, Seoul, KR;
Samsung Electro-Mechanics Co., Ltd., Suwon, KR;
Abstract
A piezoelectric ultrasonic motor includes a piezoelectric stator including a metal tube with an inner space and piezoelectric elements mounted on the outer circumference of the metal tube, a rotary shaft including a rotation bar inserted into the inner space of the metal tube, and a rotation member provided around the rotation bar in contact with the piezoelectric stator. The piezoelectric stator strains with an electric field applied thereto, and the rotation member rotates in response to the strain of the piezoelectric stator. A power transmission member is provided at one portion of the rotation bar to transmit the rotation of the rotation member to an object to be transported. With face contact the motor achieves stable actuation together with enhanced force and sufficient strain, and a flexibility to be applied to various apparatuses such as a camera module.