Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2007-04-10
2007-04-10
Schuberg, Darren (Department: 2834)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
C310S31300R, C310S31300R, C333S198000, C333S195000
Reexamination Certificate
active
10840632
ABSTRACT:
A surface acoustic wave device includes: a piezoelectric substrate that has two or more resonators formed on a surface; and a supporting substrate that is joined to another surface of the piezoelectric substrate. In this surface acoustic wave device, at least two of the resonators have exciting portions that overlap each other in the direction of propagating surface acoustic waves, and at least a part of the piezoelectric substrate is removed or modified to have different properties between at least one pair of overlapping resonators among the resonators having the overlapping portions.
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Matsuda Takashi
Miura Michio
Satoh Yoshio
Ueda Masanori
Aguirrechea J.
Arent & Fox LLP
Fujitsu Limited
Fujitsu Media Devices Limited
Schuberg Darren
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