Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1985-09-06
1987-03-24
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310366, H01L 4108
Patent
active
046527842
ABSTRACT:
A trapped-energy mode resonator is obtained by forming conductive patterns on sheets of ceramic material and then laminating the ceramic material to obtain a resonator wherein a pair of central electrodes oppose one another through a central portion of the ceramic and peripheral electrodes oppose one another through peripheral portions of the ceramic, with the central and peripheral electrodes not overlapping one another. The distance between the central electrodes is shorter than the distance between the peripheral electrodes, with the central electrodes being embedded within the ceramic and the peripheral electrodes being either embedded within or formed on the surface of the ceramic.
REFERENCES:
patent: 2635199 (1953-04-01), Wolfskill
patent: 3363119 (1968-01-01), Koneval et al.
patent: 3891872 (1975-06-01), Nagata et al.
patent: 4184095 (1980-01-01), Stacchiotti et al.
Inoue Takeshi
Suzuki Masanori
Budd Mark O.
NEC Corporation
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