发明授权
- 专利标题： Tuning fork type quartz crystal resonator with variable width base
- 专利标题（中）： 调节叉式石英晶体谐振器，可变宽度底座
-
申请号： US594536申请日： 1984-03-29
-
公开(公告)号： US4540909A公开(公告)日： 1985-09-10
- 发明人: Kunihiro Takahashi , Nobuyoshi Matsuyama
- 申请人： Kunihiro Takahashi , Nobuyoshi Matsuyama
- 申请人地址： JPX Tokyo
- 专利权人： Seiko Instruments & Electronics Ltd.
- 当前专利权人： Seiko Instruments & Electronics Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX58-59018 19830404; JPX58-92059 19830525
- 主分类号： H03H9/215
- IPC分类号： H03H9/215 ; H01L41/08
摘要：
A tuning fork type quartz crystal resonator using a coupling between the fundamental flexural and fundamental torsional modes of vibration. The resonator has a base and two tuning fork arms extending from the base. The length of the base is larger than that of the tuning fork arms. The base has a narrow width portion effective to lower the vibrating displacements of the base end according to the torsional mode.
公开/授权文献
- US5748673A Data receiving apparatus 公开/授权日：1998-05-05
信息查询
IPC分类:
