Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1985-09-18
1987-10-20
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310364, 310366, 310800, H01E 4108
Patent
active
047016590
ABSTRACT:
An ultrasonic transducer includes a piezoelectric member consisting of either a unpolarized piezoelectric polymer material or the like, or an in-advance polarized piezoelectric polymer material or the like, a first flexible substrate on which a first electrode set and their connecting leads are formed, these being bonded to one surface of the piezoelectric member, and a second flexible substrate on which a second electrode and its connecting lead are formed, these being bonded to the other surface of the piezoelectric member, wherein the piezoelectric member is sandwiched between the first electrode set and second electrode. The electrodes can apply a voltage to polarize the unpolarized piezoelectric polymer material in a manufacturing process of the piezoelectric member, or apply a drive voltage to the finished ultrasonic transducer. Also disclosed is a method of manufacturing the ultrasonic transducer.
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Fujii Tadashi
Sasaki Masahiro
Seo Iwao
Yagami Hiroyuki
Budd Mark O.
Mitsubishi Petro. Co.
Terumo Corp.
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