Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2006-01-10
2006-01-10
Schuberg, Darren (Department: 2834)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
C310S31300R, C310S31300R
Reexamination Certificate
active
06984918
ABSTRACT:
The present invention provides a surface acoustic wave device comprising a diamond, having operating frequencies in the range of several hundreds of MHz to several tens of GHz, and being capable of operating at high frequencies.The surface acoustic wave device of the present invention comprises a diamond layer or a substrate layer and a diamond layer, a ZnO piezoelectric layer, interdigital transducers and a short-circuit electrode layer, being characterized in that (2π·H/λM) is in the range of 3.0 to 10.0 where the thickness of the ZnO layer is H and the wavelength of the surface acoustic wave is λM.
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Fujii Satoshi
Hachigo Akihiro
Itakura Katsuhiro
Nakahata Hideaki
Shikata Shin-ichi
Aguirrechea J.
McDermott Will & Emery LLP
Seiko Epson Corporation
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