Piezoelectric vibrator unit

Details Piezoelectric vibrator unit Piezoelectric vibrator unit

2006-09-26

2006-09-26

Meier, Stephen D. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S068000, C347S069000, C347S070000, C347S071000, C347S072000

Reexamination Certificate

active

07111927

ABSTRACT:
A piezoelectric vibrator unit comprises: at least one piezoelectric vibrator including: common internal electrode layers and segment internal electrode layers arranged alternately; piezoelectric layers, each interposed between adjacent pair of the common and segment internal electrode layers; and external electrodes formed on an exterior of the piezoelectric vibrator and electrically connected respectively to the common internal electrode layers and the segment internal electrode layers; and a fixing member to which a surface of the piezoelectric vibrator is fixed. The piezoelectric vibrator is displaceable in a direction perpendicular to a lamination direction in which the internal electrode layers and piezoelectric layers are laminated. The magnitude of electric fields applied to the piezoelectric layers is non-uniform.

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Communication from European Patent Office, Sep. 09, 2003.

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