发明申请
- 专利标题： LAMINATED PIEZOELECTRIC BODY, LAMINATED PIEZOELECTRIC BODY MANUFACTURING METHOD, AND ULTRASOUND TRANSDUCER AND ULTRASOUND DIAGNOSTIC DEVICE USING LAMINATED PIEZOELECTRIC BODY
- 专利标题（中）： 层叠压电体，层叠压电体制造方法，超声波传感器和超声波诊断装置，使用层压压电体
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申请号： US13637850申请日： 2011-02-23
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公开(公告)号： US20130018266A1公开(公告)日： 2013-01-17
- 发明人: Yuichi Nishikubo , Kenji Ohnuma , Kiyokazu Morita , Kenji Suzuki , Hidekazu Kodama , Munehiro Date
- 申请人： Yuichi Nishikubo , Kenji Ohnuma , Kiyokazu Morita , Kenji Suzuki , Hidekazu Kodama , Munehiro Date
- 申请人地址： JP Tokyo
- 专利权人： KONICA MINOLTA MEDICAL & GRAPHIC, INC.
- 当前专利权人： KONICA MINOLTA MEDICAL & GRAPHIC, INC.
- 当前专利权人地址： JP Tokyo
- 优先权： JP2010-084018 20100331; JP2010-084533 20100331
- 国际申请： PCT/JP2011/001033 WO 20110223
- 主分类号： A61B8/14
- IPC分类号： A61B8/14 ; H04R31/00 ; A61B8/00
摘要：
In a laminated piezoelectric body, a laminated piezoelectric body manufacturing method, an ultrasound transducer, and an ultrasound diagnostic device according to the present invention, a plurality of mutually laminated piezoelectric bodies are electrically connected in parallel to each other, and each of the plurality of piezoelectric bodies arranges an orientation of residual polarization or a crystal axis that is related to an electrical displacement or a sign of an electric field due to a direct piezoelectric effect in a direction which reduces sensitivity in a first resonance mode and increases sensitivity in a second resonance mode of a higher order than the first resonance mode with respect to an axis of a first-level piezoelectric body on a fixed end-side.