| 发明名称 |
ELECTRONIC BUZZER DEVICE |
| 摘要 |
PURPOSE:To obtain an electronic buzzer of high efficiency suitable for small-sized portable apparatus by making the acoustic resonance frequency of a resonator and the mechanical resonance frequency of a diaphragm nearly identical. |
| 申请公布号 |
JPS52142494(A) |
申请公布日期 |
1977.11.28 |
| 申请号 |
JP19760058772 |
申请日期 |
1976.05.21 |
| 申请人 |
SEIKO INSTR & ELECTRONICS |
发明人 |
MURAKAMI FUMIKAZU;MORI SHIGEO;HARA YOSHIAKI;HORIKOSHI ICHIROU;TAKAHASHI MUNEYA |
| 分类号 |
G10K9/22;G04C21/02;G04C21/16;G10K9/12;G10K9/122;G10K9/13 |
主分类号 |
G10K9/22 |
| 代理机构 |
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代理人 |
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| 主权项 |
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