Circular cylinder type piezoelectric actuator and...

Details Circular cylinder type piezoelectric actuator and... Circular cylinder type piezoelectric actuator and...

2009-02-11

2011-11-15

San Martin, Jaydi (Department: 2837)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

Reexamination Certificate

active

08058780

ABSTRACT:
The cylindrical piezoelectric actuator which comprised a piezoelectric element which provided electrode in each of an inner peripheral face and an outer peripheral face which was cylindrical at least, and drive power supply to drive it. And the outer side electrode of the piezoelectric element covered the substantially circumferential outer face entirety and it was connected to a ground potential, and the electrode in the internal perimeter surface connected to drive power supply.

REFERENCES:
patent: 7170048 (2007-01-01), Kakemizu
patent: 07249392 (1995-09-01), None
patent: 11259133 (1999-09-01), None

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