发明授权
- 专利标题： Vibrating piece, vibrator, oscillator, and electronic device
- 专利标题（中）： 振动片，振动器，振荡器和电子设备
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申请号： US10047420申请日： 2002-01-14
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公开(公告)号： US06894428B2公开(公告)日： 2005-05-17
- 发明人: Hideo Tanaya , Fumitaka Kitamura , Junichiro Sakata
- 申请人： Hideo Tanaya , Fumitaka Kitamura , Junichiro Sakata
- 申请人地址： JP
- 专利权人： Seiko Epson Corporation
- 当前专利权人： Seiko Epson Corporation
- 当前专利权人地址： JP
- 代理机构： Harness, Dickey & Pierce, P.L.C.
- 优先权： JP2001-006638 20010115
- 主分类号： H02N2/08
- IPC分类号： H02N2/08 ; H03H9/21
摘要：
A vibrating piece in which a CI value ratio is maintained constant while minimizing the CI value of the fundamental wave so that variations of the CI values between the vibrating piece devices are reduced even if the base is made short, and the entire vibrating piece can be made smaller.
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