Vibration type actuator apparatus

Details Vibration type actuator apparatus Vibration type actuator apparatus

Filed on

1996-09-16

Date issued

2000-03-14

Examiner

Budd, Mark O.

Patent Class

Electrical generator or motor structure

SubClass

Non-dynamoelectric

SubSubClass

Piezoelectric elements and devices

Other Related Categories

318116, 31031602, H01L 4108

Type

Patent

Status

active

Patent number

060377011

Description

ABSTRACT:
A vibration type actuator apparatus which obtains a driving force by applying a cyclic signal to a piezoelectric member to excite a vibration member, includes an apparatus which obtains driving amount or position information of a target object driven by the apparatus by accumulating the output from the piezoelectric member.

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patent: 5173631 (1992-12-01), Suganuma
patent: 5192889 (1993-03-01), Myohga
patent: 5231325 (1993-07-01), Tamai et al.
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patent: 5438229 (1995-08-01), Ohtsuchi et al.
patent: 5477099 (1995-12-01), Suganuma
patent: 5612598 (1997-03-01), Fukui et al.
patent: 5616979 (1997-04-01), Nishikawa
patent: 5631516 (1997-05-01), Kataoka

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