| 发明名称 |
ELECTROKINETIC TYPE ELECTROACOUSTIC TRANSDUCER WITH METALLIC VIBR ATING PLATE |
| 摘要 |
PURPOSE:To provide an electrokinetic type electroacoustic transducer having a metallic vibrating plate, in which there is used a composite structure in which a part of pores in a specific porous metal having connected pores is made airinpermeable to broden the width of frequency characteristic of a dynamic speaker. |
| 申请公布号 |
JPS52111714(A) |
申请公布日期 |
1977.09.19 |
| 申请号 |
JP19760028880 |
申请日期 |
1976.03.16 |
| 申请人 |
SUMITOMO ELECTRIC INDUSTRIES |
发明人 |
KAMIJIYOU EIJI;NISHIMOTO TATSUYA |
| 分类号 |
H04R9/00;H04R7/02 |
主分类号 |
H04R9/00 |
| 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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