Ultrasonic vibrator and ultrasonic motor using the...

Details Ultrasonic vibrator and ultrasonic motor using the... Ultrasonic vibrator and ultrasonic motor using the...

2007-04-17

2007-04-17

Budd, Mark (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

Reexamination Certificate

active

10941732

ABSTRACT:
In an ultrasonic vibrator in which ultrasonic elliptical vibration is caused at a friction-projection by the simultaneous generation of a first vibration mode and a second vibration mode in a piezoelectric element, the friction-projection is formed by burning so as to be integrated with the piezoelectric element.

REFERENCES:
patent: 5200665 (1993-04-01), Iijima
patent: 6218769 (2001-04-01), Iino et al.
patent: 6909222 (2005-06-01), Sawada
patent: 3311446 (2002-05-01), None
Patent Abstracts of Japan of Japanese Publication No. 07-163162, published Jun. 23, 1995.

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