Piezoelectric device and piezoelectric switch provided with the same
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United States of America Patent
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May 19, 2009
Grant Date -
Nov 1, 2007
app pub date -
Jul 11, 2005
filing date -
Aug 24, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
There are provided a piezoelectric device, in which piezoelectric element surfaces are prevented from cracking and warping by reducing tensile stress generated within the piezoelectric element by an external force, and a piezoelectric switch utilizing the same.The piezoelectric device comprises a piezoelectric element having a plate-like shape including a piezoelectric body having a plate-like shape and polarized in a thickness direction thereof and a pair of electrodes formed on both main surfaces of the piezoelectric body, and a pair of elastic conductive members fixed to the both main surfaces of the piezoelectric element, wherein when an external force is applied, the piezoelectric body is deformed to generate electricity.
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