Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2008-09-03
2010-06-01
Benson, Walter (Department: 2837)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
C310S309000, C310S317000, C310S334000
Reexamination Certificate
active
07728487
ABSTRACT:
An ultrasound transducer manufactured by using a micromachining process comprises: a first electrode into which a control signal for transmitting ultrasound is input; a substrate on which the first electrode is formed; a second electrode that is a ground electrode facing the first electrode with a prescribed space between the first and second electrodes; a membrane on which the second electrode is formed and which vibrates and generates the ultrasound when a voltage is applied between the first and second electrodes; a piezoelectric film contacting the membrane; and a third electrode electrically continuous to the piezoelectric film.
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Adachi Hideo
Doh Ki
Fujimura Takanao
Imahashi Takuya
Mizunuma Akiko
Benson Walter
Olympus Medical Systems Corp.
Rosenau Derek J
Scully , Scott, Murphy & Presser, P.C.
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