ULTRASONIC TRANSDUCER AND MANUFACTURING METHOD THEREFOR

WIPO Patent Application WO/2019/234854

A1

An ultrasonic transducer according to the present invention is provided with: an elastic plate which includes a first surface and a second surface respectively facing one side and the other side of the elastic plate in a thickness direction thereof, and which can vibrate in the thickness direction; a plurality of piezoelectric elements fixed to the first surface of the elastic plate in such a way that the piezoelectric elements are parallel to each other; and a sealing member provided on the first surface of the elastic plate so as to form a plurality of accommodating spaces covering the plurality of piezoelectric elements, respectively. The elastic plate includes a plurality of vibration areas on which the respective piezoelectric elements are mounted, a plurality of restraining areas respectively surrounding the plurality of vibration areas, and a boundary area delimiting each of the restraining areas from an outer area located radially outward relative to the restraining area. The boundary area includes a slit portion separating the restraining area and the outer area from each other, and a bridge portion mechanically coupling the restraining area to the outer area.

JP2023164832

DISPLAY DEVICE AND VIBRATION DEVICE

TAKASUGI SATORU (JP)

PCT/JP2018/021717

December 12, 2019

June 06, 2018

Click for automatic bibliography generation  

SUNCALL CORP (JP)

H04R17/00; G01S7/521; H04R31/00

WO2007099696A1

2007-09-07

JP2017099566A	2017-06-08
US20130336095A1	2013-12-19

ARAWORE INTERNATIONAL IP LAW FIRM (JP)

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