Title:
ULTRASONIC VIBRATOR AND BODY CAVITY ULTRASONOGRAPH HAVING THE ULTRASONIC VIBRATOR
Document Type and Number:
WIPO Patent Application WO/2007/099696
Kind Code:
A1
Abstract:
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.
Inventors:
ADACHI HIDEO (JP)
WAKABAYASHI KATSUHIRO (JP)
MIZUNUMA AKIKO (JP)
SAWADA YUKIHIKO (JP)
IMAHASHI TAKUYA (JP)
FUJIMURA TAKANAO (JP)
DOH KI (JP)
WAKABAYASHI KATSUHIRO (JP)
MIZUNUMA AKIKO (JP)
SAWADA YUKIHIKO (JP)
IMAHASHI TAKUYA (JP)
FUJIMURA TAKANAO (JP)
DOH KI (JP)
Application Number:
PCT/JP2007/000063
Publication Date:
September 07, 2007
Filing Date:
February 07, 2007
Export Citation:
Assignee:
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)
ADACHI HIDEO (JP)
WAKABAYASHI KATSUHIRO (JP)
MIZUNUMA AKIKO (JP)
SAWADA YUKIHIKO (JP)
IMAHASHI TAKUYA (JP)
FUJIMURA TAKANAO (JP)
DOH KI (JP)
International Classes:
H04R1/40; A61B8/12; H04R19/00; H04R31/00
Domestic Patent References:
WO2001097562A2 | 2001-12-20 |
Foreign References:
JP2004350703A | 2004-12-16 | |||
JP2004350704A | 2004-12-16 | |||
JP2004503313A | 2004-02-05 | |||
JP2004350705A | 2004-12-16 | |||
JP2004350704A | 2004-12-16 |
Other References:
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
TSUYOSHI ITOH: "Onkyo Kogaku Genron", vol. 1, 10 December 1980, CORONA PUBLISHING CO., LTD, pages: 149 - 152
Attorney, Agent or Firm:
OSUGA, Yoshiyuki (Nibancho Bldg. 8-20, Nibancho, Chiyoda-k, Tokyo 84, JP)
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