Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2008-01-29
2008-01-29
Budd, Mark (Department: 2834)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
C310S31300R
Reexamination Certificate
active
11470017
ABSTRACT:
A boundary acoustic wave device includes a dielectric body disposed over one surface of a LiTaO3piezoelectric body, and an electrode including an IDT and reflectors at the boundary between the piezoelectric body and the dielectric body. The thickness of the electrode is set so that the acoustic velocity of the SH boundary acoustic waves is less than the acoustic velocities of slow transverse waves propagating in the dielectric body and slow transverse waves propagating in the piezoelectric body.
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Budd Mark
Keating & Bennett LLP
Murata Manufacturing Co. Ltd.
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