Ultrasonic motor and microscope stage

Details Ultrasonic motor and microscope stage Ultrasonic motor and microscope stage

2007-11-21

2009-12-22

Benson, Walter (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S316020, C310S323190

Reexamination Certificate

active

07635940

ABSTRACT:
An ultrasonic motor includes a vibrator formed by stacking a plurality of rectangular piezoelectric plates in a thickness direction, a driving circuit for applying a driving signal to a piezoelectric plate, and a detection circuit for detecting an electromotive force generated when the piezoelectric plate deforms, and this ultrasonic motor is configured in such a manner that there are a first piezoelectric plate and a second piezoelectric plate among the plurality of rectangular piezoelectric plates, the first and the second piezoelectric plate each is a piezoelectric plate in which a longitudinal vibration polarization portion that can excite longitudinal vibrations and a bending vibration polarization portion that can excite bending vibrations are polarized in a thickness direction, and the first piezoelectric plate is connected to the driving circuit and the detection circuit, and the second piezoelectric plate is connected to the driving circuit and is not connected to the detection circuit.

REFERENCES:
patent: 5936328 (1999-08-01), Takano et al.
patent: 6218769 (2001-04-01), Iino et al.
patent: 6806620 (2004-10-01), Wischnewskiy
patent: 7061159 (2006-06-01), Funakubo
patent: 2004/0256956 (2004-12-01), Miyazawa
patent: 2006/0238072 (2006-10-01), Funakubo
patent: 2007/0052329 (2007-03-01), Koc et al.
patent: 2008/0030101 (2008-02-01), Funakubo
patent: 2722211 (1997-11-01), None
patent: 2004-201380 (2004-07-01), None
patent: 2005-065358 (2005-03-01), None
patent: 2005-091866 (2005-04-01), None
patent: 2005-237102 (2005-09-01), None
patent: 2005-295656 (2005-10-01), None
patent: 2006-060899 (2006-03-01), None
patent: WO 2004/088830 (2004-10-01), None
Japanese Office Action dated Jan. 6, 2009 (7 pages), and English translation thereof (8 pages), issued in a counterpart Japanese Application No. 2006-321356.
Extended European Search Report dated Sep. 11, 2009 (8 pages), issued in counterpart European Application Serial No. 07022508.1.

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