Laminar multi-layer piezoelectric roll component
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United States of America Patent
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Jan 30, 2007
Grant Date -
Oct 5, 2006
app pub date -
Apr 4, 2005
filing date -
Apr 4, 2005
priority date (Note) -
Expired
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Abstract
A multi-layer piezoelectric component includes a plurality of piezoelectric layers, a first inner electrode sheet, a second inner electrode sheet, a first outer electrode, and a second outer electrode. The piezoelectric layers are wound around an axis to form a laminar roll having first and second end faces transverse to the axis. The piezoelectric layers include at least one first layer and at least one second layer. Each of the first and second layers has opposite first and second edges respectively at the first and second end faces, and opposite inner and outer circumferential surfaces. The first and second inner electrode sheets respectively overlie the inner circumferential surfaces of the first and second layers. The first and second outer electrodes are respectively and electrically connected to the first and second inner electrode sheets.
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