发明名称 PRODUCTION OF PIEZOELECTRIC MICROPHONE
摘要 PURPOSE:To improve the massproducibility of a piezoelectric microphone by punching out the outer peripheral portion to produce a microphone unit, after a piezoelectric film of high molecular material is adhered to one side of a frame plate, and by forming the unit into a curved shape.
申请公布号 JPS53137127(A) 申请公布日期 1978.11.30
申请号 JP19770052263 申请日期 1977.05.07
申请人 MATSUSHITA ELECTRIC IND CO LTD 发明人 IBARAKI SATORU;YAMAMOTO HIROSHI
分类号 H04R17/02;H04R17/00 主分类号 H04R17/02
代理机构 代理人
主权项
地址