发明授权
- 专利标题： Tuning-fork resonator having juxtaposed grooves
- 专利标题（中）： 调谐叉式谐振器具有并置凹槽
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申请号： US13331602申请日： 2011-12-20
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公开(公告)号： US08288926B2公开(公告)日： 2012-10-16
- 发明人: Makoto Furuhata , Takashi Yamazaki
- 申请人： Makoto Furuhata , Takashi Yamazaki
- 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： JP2009-229290 20091001; JP2010-167853 20100727
- 主分类号： H03H9/19
- IPC分类号： H03H9/19
摘要：
A resonator having a base part; and a resonating arm that performs flexing vibration, the resonating arm part has two principal surfaces, a first groove provided on the one principal surface, a second groove provided in juxtaposition with the first groove on the other principal surface, a third groove provided in juxtaposition with the first groove and provided nearer the base part side than the first groove on the other principal surface, and a fourth groove provided in juxtaposition with the second groove and provided nearer the base part side than the second groove on the principal surface. The sum of a depth of the first and second groove part and a sum of a depth of the third and fourth groove part are larger than a distance between the one principal surface and the other principal surface.
公开/授权文献
- US20120092084A1 TUNING-FORK RESONATOR WITH GROOVES ON PRINCIPAL SURFACES 公开/授权日：2012-04-19
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