Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1986-03-24
1987-02-03
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310312, H01L 4108
Patent
active
046410554
ABSTRACT:
A piezoelectric resonator including a piezoelectric substrate of a quadrilateral or rectangular configuration, and electrode layers provided over opposite main faces of the piezoelectric substrate for vibration of the piezoelectric substrate on the whole, and characterized in that the piezoelectric substrate is formed, in its four side edges, with notched portions having dimensions and shapes different from each other.
REFERENCES:
patent: 2870521 (1959-01-01), Rudnick
patent: 3074034 (1963-01-01), Crownover
Budd Mark O.
Murata Manufacturing Co. Ltd.
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