Piezoelectric drive device and electronic device

Details Piezoelectric drive device and electronic device Piezoelectric drive device and electronic device

2011-04-12

2011-04-12

Luebke, Renee (Department: 2833)

Horology: time measuring systems or devices

Escapements

With oscillating or reciprocating means

C368S125000, C368S255000, C310S311000, C310S323060, C310S329000

Reexamination Certificate

active

07922385

ABSTRACT:
A piezoelectric drive device has a piezoelectric actuator that has a vibrator with a piezoelectric element, and a rotor that is rotated by the vibrator, an elastic device that can store the rotational energy of the rotor as elastic energy, and a driven body that is rotated by the elastic energy stored by the elastic device.

REFERENCES:
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patent: 6885615 (2005-04-01), Miyazawa et al.
patent: 2007/0008829 (2007-01-01), Kitahara et al.
patent: 2605937 (2006-08-01), None
patent: 102004056989 (2006-06-01), None
patent: 1612922 (2006-01-01), None
patent: 1962310 (2008-08-01), None
patent: H10-290579 (1998-10-01), None

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