发明授权
- 专利标题： Piezoelectric ceramic
- 专利标题（中）： 压电陶瓷
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申请号： US10541022申请日： 2004-03-19
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公开(公告)号： US07390426B2公开(公告)日： 2008-06-24
- 发明人: Takeo Tsukada , Tomohisa Azuma , Masakazu Hirose
- 申请人： Takeo Tsukada , Tomohisa Azuma , Masakazu Hirose
- 申请人地址： JP Tokyo
- 专利权人： TDK Corporation
- 当前专利权人： TDK Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- 优先权： JP2003-089762 20030328
- 国际申请： PCT/JP2004/003769 WO 20040319
- 国际公布： WO2004/087611 WO 20041014
- 主分类号： C04B35/46
- IPC分类号： C04B35/46 ; H01L41/187
摘要：
The present invention has an object to provide piezoelectric ceramics containing no lead, having a high Curie point, and further, having excellent piezoelectric properties, particularly large Qmax. The piezoelectric ceramics contain, as a main component, a bismuth layer-structured compound having (MII1-xLnx)Bi4Ti4O15 crystals (MII is an element selected from Sr, Ba, and Ca, Ln is an element selected from lanthanoids, and x is within a range of 0
公开/授权文献
- US20060169946A1 Piezoelectric ceramic 公开/授权日：2006-08-03
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