Ultrasonic actuator which acts on a rotor to rotate the rotor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 10, 2010
Grant Date -
Mar 19, 2009
app pub date -
Feb 28, 2007
filing date -
Mar 13, 2006
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
It is an object to provide a small ultrasonic actuator whose voltage control is easy. The ultrasonic actuator acts on a rotatable rotor to rotate the rotor, the ultrasonic actuator includes: a plate vibrator having one end which contacts the rotor, a corner portion bent at a midpoint in the vibrator, and the other end which is fixed; and a piezoelectric device which contacts a part of the vibrator between the one end and the corner portion, and transmits a vibration to the vibrator by vibrating in response to application of an alternating voltage between one of electrodes provided respectively on both surfaces or the plate vibrator serving as the one of the electrodes and the other of the electrodes.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully