发明名称 |
ELECTRODE FILM STRUCTURE OF TUNING FORK TYPE CRYSTAL VIBRATOR |
摘要 |
PURPOSE:To lower CI value, increase Q value and suppress the generation of overtone by beforehand removing or making fine the electrode film near the root of arms of the tuning fork type crystal vibrator formed with electrode films on the surface. |
申请公布号 |
JPS5357994(A) |
申请公布日期 |
1978.05.25 |
申请号 |
JP19760132992 |
申请日期 |
1976.11.05 |
申请人 |
CITIZEN WATCH CO LTD |
发明人 |
KATOU FUMICHIKA;NOGUCHI KAZUO |
分类号 |
H03H9/19;H03H9/13;H03H9/215 |
主分类号 |
H03H9/19 |
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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