Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2007-01-09
2007-01-09
Dougherty, Thomas M. (Department: 2834)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
C310S322000
Reexamination Certificate
active
10678849
ABSTRACT:
There is disclosed a piezoelectric/electrostrictive device being less-particle-generative and capable of continuously realizing a stable displacement operation over a long period of time or being large in displacement amount and high in generative force and the like. This less-dust-generative piezoelectric/electrostrictive device1comprises a plurality of piezoelectric/electrostrictive elements31including a plurality of piezoelectric/electrostrictive members4and at least one pair of electrodes formed on the side surface of each piezoelectric/electrostrictive member4, and the members are set up on a thick ceramic substrate2. In this less-dust-generative matrix-type piezoelectric/electrostrictive device1, a plurality of piezoelectric/electrostrictive elements31substantially having pillar shapes are set up in a matrix form. The ceramic substrate2is formed integrally with the piezoelectric/electrostrictive elements31. The side surface of each piezoelectric/electrostrictive member4on which the electrodes18, 19are formed are formed as a fired, but unprocessed face.
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Kawaguchi Tatsuo
Kimura Koji
Takeuchi Yukihisa
Burr & Brown
Dougherty Thomas M.
NGK Insulators Ltd.
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