发明授权
- 专利标题： Piezoelectric oscillation assembly including several individual piezoelectric oscillation devices having a common oscillation plate member
- 专利标题（中）： 压电振荡组件包括具有共同振荡板部件的多个单独的压电振荡器件
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申请号： US940540申请日： 1986-12-10
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公开(公告)号： US4751419A公开(公告)日： 1988-06-14
- 发明人: Daisuke Takahata
- 申请人： Daisuke Takahata
- 申请人地址： JPX Saitama
- 专利权人： Nitto Incorporated
- 当前专利权人： Nitto Incorporated
- 当前专利权人地址： JPX Saitama
- 主分类号： H04R1/22
- IPC分类号： H04R1/22 ; H04R7/04 ; H04R17/00 ; H01L41/08
摘要：
In this piezoelectric oscillation assembly there are included several piezoelectric oscillation devices, each including a first oscillation plate, a piezoelectric oscillation element attached to the first oscillation plate, and a second oscillation plate layered against the first oscillation plate so as to define an acoustically enclosed space between them. At least one of the oscillation plates is common to all of the several piezoelectric oscillation devices. It may be the first oscillation plate which is common to these several piezoelectric oscillation devices, or the second oscillation plate, or both. And the acoustically enclosed spaces of these several piezoelectric oscillation devices may be mutually isolated, or alternatively a one common acoustically enclosed space may be defined between the first oscillation plate and the second oscillation plate for all of these several piezoelectric oscillation devices.
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