Piezoelectric Element
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United States of America Patent
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Issued Date -
Dec 18, 2008
app pub date -
Feb 24, 2006
filing date -
Mar 1, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A piezoelectric element includes an electrode disposed on at least one of the front and back surfaces of a piezoelectric material prepared by molding a mixture containing a Pb component, a Zr component, a Ti component, a Sr component, a Nb component, and a Zn component and then firing the molded product. When the piezoelectric material is represented by the general formula Pb(ZraTi.sub.1-a)O.sub.3+bSrO+cNbO.sub.2.5+dZnO, the relative amounts of the respective components, for example, satisfy the relationships, a=0.51, b=2.0.times.10.sup.-2, c=1.50.times.10.sup.-2, d=0.5.times.10.sup.-2, and c/d=3.0.
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