| 发明名称 |
ELECTROKINETICCTYPE ELECTRICITY*SOUND CONVERTER |
| 摘要 |
PURPOSE:To increase a high-pass resonant frequency and improve frequency properties by coating the both surfaces of a metal porous body of three-dimensional irregular mesh-type structure with metal foil in an oscillating plate for speaker, etc. |
| 申请公布号 |
JPS52133209(A) |
申请公布日期 |
1977.11.08 |
| 申请号 |
JP19760050222 |
申请日期 |
1976.04.30 |
| 申请人 |
SUMITOMO ELECTRIC INDUSTRIES |
发明人 |
HONDA MASAAKI;KAMIJIYOU EIJI |
| 分类号 |
H04R7/02 |
主分类号 |
H04R7/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
