Ultrasonic wave generating device

Details Ultrasonic wave generating device Ultrasonic wave generating device

2008-07-08

2008-07-08

San Martin, Jaydi A (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S323210

Reexamination Certificate

active

11602258

ABSTRACT:
An ultrasonic wave generating device includes a substrate, a heat insulation layer on the substrate, a membrane heating portion on the heat insulation layer, and a membrane oscillator on the heating portion. The heating portion is electrically driven with a predetermined period, and produces heat for thermally displacing a surface of the oscillator. The oscillator receives a temperature variation with the predetermined period from the heating portion, and oscillates so as to generate ultrasonic waves.

REFERENCES:
patent: A-11-300274 (1999-11-01), None
patent: A-2003-52690 (2003-02-01), None
patent: A-2005-201910 (2005-07-01), None
patent: 2005269745 (2005-09-01), None
patent: 2005291941 (2005-10-01), None
patent: 2007054831 (2007-03-01), None

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