| 发明名称 |
DYNAMIC LOUDSPEAKER |
| 摘要 |
<p>A dynamic loudspeaker including a dome-type diaphragm having at least one convex surface and another concave surface, contiguous with the convex surface. Specifically, the concave surface is an annular portion surrounding the convex surface.</p> |
| 申请公布号 |
CA1025549(A) |
申请公布日期 |
1978.01.31 |
| 申请号 |
CA19750219054 |
申请日期 |
1975.01.30 |
| 申请人 |
SONY CORPORATION |
发明人 |
KAWAKAMI, HIROTAKE;KOIZUMI, HIROSHI |
| 分类号 |
H04R7/12;H04R9/06;(IPC1-7):04R7/12 |
主分类号 |
H04R7/12 |
| 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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