专利检索 ap:("KABUSHIKI KAISHA TOSHIBA") AND inv:"Morishita, Shigefumi c/o Patent Division" 第 1 页

1.

发明授权
Surface acoustic wave resonator device 失效
标题翻译：表面声波谐振器装置

公开(公告)号：EP0056690B1

公开(公告)日：1984-05-16

申请号：EP82300077.3

申请日：1982-01-07

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Morishita, Shigefumi c/o Patent Division , Ebata, Yasuo c/o Patent Division

IPC分类号： H03H9/25 , H03H9/64

CPC分类号： H03H9/25 , H03H9/1452 , H03H9/14591 , H03H9/645 , H03H9/6463 , H03H9/6469

2.

发明公开
Surface acoustic wave resonator device 失效
标题翻译：表面声波谐振器。

公开(公告)号：EP0056690A2

公开(公告)日：1982-07-28

申请号：EP82300077.3

申请日：1982-01-07

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Morishita, Shigefumi c/o Patent Division , Ebata, Yasuo c/o Patent Division

IPC分类号： H03H9/25 , H03H9/64

CPC分类号： H03H9/25 , H03H9/1452 , H03H9/14591 , H03H9/645 , H03H9/6463 , H03H9/6469

摘要： A surface acoustic wave resonator has a transducer (12) and grating reflectors (18, 20) mounted on a piezoelectric substrate (10). The transducer comprises a number of interdigitated transducers (14, 16) which are series connected and aligned with one another. The grating reflectors (18, 20) are located on opposite sides of the composite transducer (12) and have aperture lengths extending at least over the width of the paths of the surface acoustic waves from the transducer.