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US 6,285,116 B1Granted
Piezoelectric element
AssigneeDenso Corporation
InventorsAtsushi Murai, Masayuki Kobayashi
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AssigneeDenso Corporation
InventorsAtsushi Murai, Masayuki Kobayashi
Estimating the term…
In a piezoelectric element having a laminated body 11 of piezoelectric layers, wherein an electric voltage is applied across internal electrodes 121 and 122 of positive and negative polarities formed between the layers from external electrodes 131 and 132 so as to form an electric field within the piezoelectric layers to thereby displace the piezoelectric layers, an inductor is provided at an intermediate position along a line connecting the external electrode of one polarity and the internal electrode 121 of the one polarity, whereby no inductor is needed in a driving circuit 7 even when there are provided numerous piezoelectric elements or a common piezoelectric element only has to be provided in the driving circuit which is common to the respective piezoelectric elements, thus making it possible to drive the piezoelectric elements with a simple driving circuit.
A piezoelectric element having a laminated body of piezoelectric layers, wherein a voltage is applied across internal electrodes of positive and negative polarities from external electrodes so as to displace said laminated body, said piezoelectric element comprising an inductor provided at an intermediate position along a line connecting one of said external electrodes of one polarity with one of said internal electrodes of said one polarity.
Dependencies are inferred from the claim text.