Piezoelectric element, piezoelectric actuator and liquid...

Details Piezoelectric element, piezoelectric actuator and liquid... Piezoelectric element, piezoelectric actuator and liquid...

2006-02-14

2006-02-14

Shah, Manish (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S071000, C310S311000

Reexamination Certificate

active

06997547

ABSTRACT:
A first piezoelectric layer is laminated on a first common electrode and comprised of a first piezoelectric material having a first residual stress. A drive electrode is laminated on the first piezoelectric layer, to which a drive signal is supplied externally. A second piezoelectric layer is laminated on the drive electrode and comprised of a second piezoelectric material having a second residual stress lower than the first residual stress. A second common electrode is laminated on the second piezoelectric layer.

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