Ultrasonic motor and electronic apparatus having ultrasonic moto

Details Ultrasonic motor and electronic apparatus having ultrasonic moto Ultrasonic motor and electronic apparatus having ultrasonic moto

1998-05-14

2000-06-27

Ramirez, Nestor

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

31032312, 31032316, H01L 4108

Patent

active

060810637

ABSTRACT:
An ultrasonic motor has at least one piezoelectric flexing vibration member driven by application of a voltage thereto to undergo flexing vibration. A piezoelectric stretching vibration member is integrally laminated in a lamination direction on the piezoelectric flexing vibration member and is driven by application of a voltage thereto to undergo stretching vibration in a direction generally perpendicular to the lamination direction. A movable body is vibrationally driven by a combination of the flexing vibration of the piezoelectric flexing vibration member and the stretching vibration of the piezoelectric stretching vibration member.

REFERENCES:
patent: 5345137 (1994-09-01), Funakubo et al.
patent: 5453653 (1995-09-01), Zumeris
patent: 5616980 (1997-04-01), Zumeris
patent: 5682076 (1997-10-01), Zumeris
patent: 5877579 (1999-03-01), Zumeris
Patent Abstracts of Japan, vol. 018, No. 137 (E-1518) Mar. 7, 1994.
Patent Abstracts of Japan, vol. 097, No. 009 Sep. 30, 1997.

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