发明名称 |
GLASS SEALING COVER FOR CRYSTAL VIBRATOR, AND CRYSTAL VIBRATOR FOR SURFACE MOUNTING USING IT |
摘要 |
PROBLEM TO BE SOLVED: To provide a glass sealing cover capable of securing a joint to a container body to improve productivity, and to provide a surface mounted crystal vibrator capable of preventing deposition of sealing glass using the cover and maintaining oscillation characteristic in a proper condition. SOLUTION: The glass sealing cover 3 for a crystal vibrator comprises a revolving sealing glass 9 on the perimeter of a cover parent body 3a. The sealing glass 9 comprises a low height area 11 with small thickness for forming a vent hole 10. The glass sealing cover 3 seals the aperture end side of a concave container body where a crystal piece is held. Wherein, at least the low height area 11 of the sealing glass 9 is configured to be projected into inside of the cover parent 3a. COPYRIGHT: (C)2008,JPO&INPIT
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申请公布号 |
JP2008066885(A) |
申请公布日期 |
2008.03.21 |
申请号 |
JP20060240716 |
申请日期 |
2006.09.05 |
申请人 |
NIPPON DEMPA KOGYO CO LTD |
发明人 |
AKANE KATSUNORI;YAGISHITA HIROAKI |
分类号 |
H03H9/02 |
主分类号 |
H03H9/02 |
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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