发明授权
US08047995B2 Ultrasonic transducer, method of manufacturing ultrasonic transducer, ultrasonic diagnostic apparatus, and ultrasonic microscope
有权
超声波换能器，超声波换能器的制造方法，超声波诊断装置和超声波显微镜
- 专利标题： Ultrasonic transducer, method of manufacturing ultrasonic transducer, ultrasonic diagnostic apparatus, and ultrasonic microscope
- 专利标题（中）： 超声波换能器，超声波换能器的制造方法，超声波诊断装置和超声波显微镜
-
申请号： US12197706申请日： 2008-08-25
-
公开(公告)号： US08047995B2公开(公告)日： 2011-11-01
- 发明人: Katsuhiro Wakabayashi , Hideo Adachi , Mamoru Hasegawa , Kazuya Matsumoto , Kazuhisa Karaki , Yoshitaka Kamiya
- 申请人： Katsuhiro Wakabayashi , Hideo Adachi , Mamoru Hasegawa , Kazuya Matsumoto , Kazuhisa Karaki , Yoshitaka Kamiya
- 申请人地址： JP Tokyo JP Tokyo
- 专利权人： Olympus Medical Systems Corp.,Olympus Corporation
- 当前专利权人： Olympus Medical Systems Corp.,Olympus Corporation
- 当前专利权人地址： JP Tokyo JP Tokyo
- 代理机构： Scully, Scott, Murphy & Presser, P.C.
- 优先权： JP2007-221688 20070828; JP2007-221690 20070828; JP2007-221691 20070828
- 主分类号： A61B8/00
- IPC分类号： A61B8/00
摘要：
A ultrasonic transducer of the invention comprises: a transducer cell including a first electrode and a second electrode disposed separated from the first electrode by an air gap portion; and an electret for applying a potential difference between the first electrode and the second electrode. The electret is disposed in a region where at least a part thereof does not overlap with the transducer cell when viewed from a transmitting direction of ultrasonic waves.
公开/授权文献
信息查询
