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. 22, 2012
Filed:
May. 20, 2009
Kenichi Honjo, Osaka, JP;
Hideaki Mukae, Hyogo, JP;
Yusuke Adachi, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
In driving a target body only by one of actuators, the target body is smoothly driven. A drive unit () includes a stage (), a first ultrasonic actuator (A) for driving the stage () in an X direction and a second ultrasonic actuator (B) for driving the stage () in a Y direction. When the stage () is driven only in one of the X direction and the Y direction, one of the first and second ultrasonic actuators (A andB) which corresponds to the direction generates composite vibration of longitudinal direction parallel to a contact surface of the stage () and bending vibration perpendicular to the contact surface of the stage (). On the other hand, the other one of the first and second ultrasonic actuators (A andB) generates only longitudinal vibration parallel to the contact surface of the stage ().