| 发明名称 |
Vibrating piece, vibrator, oscillator, and electronic equipment |
| 摘要 |
<p>A vibrating piece comprises a base and vibrating arms formed protruding from the base, wherein a groove is formed on at least one of the front side and rear side of the vibrating arms, and wherein notches are formed in the base.
</p> |
| 申请公布号 |
EP1788702(A3) |
申请公布日期 |
2008.01.16 |
| 申请号 |
EP20070002621 |
申请日期 |
2001.12.21 |
| 申请人 |
SEIKO EPSON CORPORATION |
发明人 |
KITAMURA, FUMITAKA;SAKATA, JUNICHIRO;TANAYA, HIDEO |
| 分类号 |
H03H9/00;H03H9/21;H03B5/30;H03B5/32;H03H9/19;H03H9/215 |
主分类号 |
H03H9/00 |
| 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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