04456849 is referenced by 6 patents and cites 11 patents.

An ultrasonic transducer comprises a lamination structured piezo-electric element (1) to which center shaft (2) of a diaphragm (3) is connected, a housing (7) mounted integral with a horn (11), a buffer member (10) disposed between said housing (7) and said diaphragm (3) for holding said diaphragm (3) in vibratable manner; thereby a sharp rise up and fall down characteristics of ultrasonic wave and sharp directivity are attained.

Title
Piezoelectric ultrasonic transducer with damped suspension
Application Number
6/418839
Publication Number
4456849
Application Date
September 16, 1982
Publication Date
June 26, 1984
Inventor
Yukihiko Ise
Toyonaka
JP
Nozomu Ueshiba
Neyagawa
JP
Akira Tokushima
Kyoto
JP
Ryoichi Takayama
Suita
JP
Agent
Cushman Darby & Cushman
Assignee
Matsushita Electric Industrial
JP
IPC
H01L 41/08
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