Piezoelectric actuator

Details Piezoelectric actuator Piezoelectric actuator

2008-11-26

2010-12-21

Feggins, K. (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

Reexamination Certificate

active

07854498

ABSTRACT:
A piezoelectric actuator includes a vibration plate, a first piezoelectric layer formed on one surface of the vibration plate, a second piezoelectric layer stacked on a surface of the first piezoelectric layer, a plurality of individual electrodes arranged on a surface of the second piezoelectric layer in a predetermined direction, a first common electrode having a plurality of first electrodes formed between the first piezoelectric layer and the second piezoelectric layer, and which are arranged in the predetermined direction to face the individual electrodes respectively, and a first wire electrically connecting all of the first electrodes, and a second common electrode having a plurality of second electrodes formed between the vibration plate and the first piezoelectric layer, and which are arranged in the predetermined direction to face the individual electrodes respectively, and a second wire electrically connecting all of the second electrodes.

REFERENCES:
patent: 7578579 (2009-08-01), Sugahara
patent: 2008/0239018 (2008-10-01), Sekiguchi
patent: 2005-27403 (2005-01-01), None

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