Stack-type piezoelectric device

Details Stack-type piezoelectric device Stack-type piezoelectric device

2006-09-05

2006-09-05

Dougherty, Thomas M. (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S365000

Reexamination Certificate

active

07102275

ABSTRACT:
Provided is a stack-type piezoelectric device capable of preventing variations in a response time of an active part corresponding to each individual electrode from occurring depending upon locations of individual electrodes.In a stack-type piezoelectric device1, a voltage is almost simultaneously applied through electroconductive members in a plurality of through holes formed in each of piezoelectric layers3, 5and along an extending direction of relay electrodes6, to portions opposed to individual electrodes2arrayed in each row direction, in each of common electrodes4, 4adjacent in the thickness direction. Therefore, it is feasible to prevent the variations in the response time of the active part corresponding to each individual electrode2from occurring depending upon the locations of the individual electrodes2arranged in a matrix, whereby the stack-type piezoelectric device1can be appropriately driven.

REFERENCES:
patent: 2006/0061241 (2006-03-01), Sasaki
patent: A-2001-076952 (2001-03-01), None
patent: A-2001-260349 (2001-09-01), None
patent: A-2002-019102 (2002-01-01), None
patent: A-2002-254634 (2002-09-01), None

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