发明名称 |
Piezoelectric electro-acoustic transducer |
摘要 |
An electro-acoustic transducer with a piezoelectric diaphragm supported by a support member having a curved portion for imparting a suitable resiliency and/or tension to said diaphragm to improve acoustic characteristics without reducing efficiency of the electro-mechanical conversion effected by the transducer.
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申请公布号 |
US4008408(A) |
申请公布日期 |
1977.02.15 |
申请号 |
US19750552140 |
申请日期 |
1975.02.24 |
申请人 |
PIONEER ELECTRONIC CORPORATION |
发明人 |
KODAMA, AKIHIKO |
分类号 |
H04R1/28;H04R17/00;(IPC1-7):H01L41/08 |
主分类号 |
H04R1/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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