发明授权
- 专利标题: Acoustic matching layer and ultrasonic transducer
- 专利标题(中): 声匹配层和超声波换能器
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申请号: US10475426申请日: 2003-01-28
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公开(公告)号: US06969943B2公开(公告)日: 2005-11-29
- 发明人: Kazuhiko Hashimoto , Takashi Hashida , Masaaki Suzuki , Masahiko Hashimoto , Hidetomo Nagahara , Seigo Shiraishi , Norihisa Takahara
- 申请人: Kazuhiko Hashimoto , Takashi Hashida , Masaaki Suzuki , Masahiko Hashimoto , Hidetomo Nagahara , Seigo Shiraishi , Norihisa Takahara
- 申请人地址: JP Osaka
- 专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址: JP Osaka
- 代理机构: Akin Gump Strauss Hauer & Feld, LLP
- 优先权: JP2002-018047 20020128; JP2002-027834 20020205
- 国际申请: PCT/JP03/00812 WO 20030128
- 国际公布: WO03/064980 WO 20030807
- 主分类号: G01F1/66
- IPC分类号: G01F1/66 ; G10K11/02 ; H01L41/08
摘要:
An acoustic matching layer according to the present invention includes a powder of a dry gel. The dry gel preferably has a density of 500 kg/m3 or less and an average pore diameter of 100 nm or less. By using the dry gel powder, a variation in the property of the acoustic matching layer can be reduced.
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