ULTRASONIC VIBRATOR AND BODY CAVITY ULTRASONOGRAPH HAVING THE ULTRASONIC VIBRATOR

WIPO Patent Application WO/2007/099696

A1

An ultrasonic vibrator comprises a plurality of ultrasonic vibrator cells each composed of a substrate having a lower electrode formed thereon and a membrane installed apart from the substrate and having an upper electrode. When a voltage is applied between the lower and upper electrodes of each cell, the membranes are vibrated to generate ultrasonic wave. The ultrasonic vibrator manufactured by using a micro machine process further comprises a vibration transmission suppressing means suppressing the transmission of the vibration of the ultrasonic vibrator cells to the adjacent ultrasonic vibrator cells.

ADACHI HIDEO (JP)
WAKABAYASHI KATSUHIRO (JP)
MIZUNUMA AKIKO (JP)
SAWADA YUKIHIKO (JP)
IMAHASHI TAKUYA (JP)
FUJIMURA TAKANAO (JP)
DOH KI (JP)

PCT/JP2007/000063

September 07, 2007

February 07, 2007

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OLYMPUS MEDICAL SYSTEMS CORP (JP)
ADACHI HIDEO (JP)
WAKABAYASHI KATSUHIRO (JP)
MIZUNUMA AKIKO (JP)
SAWADA YUKIHIKO (JP)
IMAHASHI TAKUYA (JP)
FUJIMURA TAKANAO (JP)
DOH KI (JP)

H04R1/40; A61B8/12; H04R19/00; H04R31/00

WO2001097562A2

2001-12-20

JP2004350703A	2004-12-16
JP2004350704A	2004-12-16
JP2004503313A	2004-02-05
JP2004350705A	2004-12-16
JP2004350704A	2004-12-16

YONGRAE R. ET AL.: "Finite element modeling of capacitor micromachined ultrasonic transducers", PROC. IEEE ULTRASON. SYMP., vol. 1, October 2000 (2000-10-01), pages 905 - 908, XP010541732
TSUYOSHI ITOH: "Onkyo Kogaku Genron", vol. 1, 10 December 1980, CORONA PUBLISHING CO., LTD, pages: 149 - 152

OSUGA, Yoshiyuki (Nibancho Bldg. 8-20, Nibancho, Chiyoda-k, Tokyo 84, JP)

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