| 发明名称 |
Microspeaker |
| 摘要 |
A case comprises an upper case and a lower case. A vibrating plate is secured to the upper case, a voice coil is secured to an underside of the vibrating plate. Each end portion of the voice coil is engaged in a groove formed in the upper case.
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| 申请公布号 |
US2002054688(A1) |
申请公布日期 |
2002.05.09 |
| 申请号 |
US20010977347 |
申请日期 |
2001.10.16 |
| 申请人 |
CITIZEN ELECTRONICS CO., INC. |
发明人 |
MIYAMOTO KAZUMI;OHTA YOSHIZUMI;KOBAYASHI TAKASHI |
| 分类号 |
H04R31/00;H04R9/02;H04R9/04;H04R9/06;(IPC1-7):H04R25/00;H04R1/00 |
主分类号 |
H04R31/00 |
| 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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