发明申请
- 专利标题： PIEZOELECTRIC MATERIAL, PIEZOELECTRIC ELEMENT, LIQUID DISCHARGE HEAD, ULTRASONIC MOTOR, AND DUST REMOVING DEVICE
- 专利标题（中）： 压电材料，压电元件，液体放电头，超声波电机和除尘装置
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申请号： US13993721申请日： 2011-12-22
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公开(公告)号： US20130270965A1公开(公告)日： 2013-10-17
- 发明人: Jumpei Hayashi , Hisato Yabuta , Makoto Kubota , Mikio Shimada , Satoshi Wada , Ichiro Fujii , Ryuta Mitsui , Nobuhiro Kumada
- 申请人： Jumpei Hayashi , Hisato Yabuta , Makoto Kubota , Mikio Shimada , Satoshi Wada , Ichiro Fujii , Ryuta Mitsui , Nobuhiro Kumada
- 申请人地址： JP Kofu-shi JP Tokyo
- 专利权人： UNIVERSITY OF YAMANASHI,CANON KABUSHIKI KAISHA
- 当前专利权人： UNIVERSITY OF YAMANASHI,CANON KABUSHIKI KAISHA
- 当前专利权人地址： JP Kofu-shi JP Tokyo
- 优先权： JP2010-292819 20101228; JP2011-194072 20110906
- 国际申请： PCT/JP2011/080555 WO 20111222
- 主分类号： H01L41/187
- IPC分类号： H01L41/187 ; H01L41/09
摘要：
Provided is a piezoelectric material that achieves both high piezoelectric performance and high Curie temperature. In addition, provided are a piezoelectric element, a liquid discharge head, an ultrasonic motor, and a dust removing device, which use the piezoelectric material. The piezoelectric material includes a perovskite-type metal oxide that is expressed by the following general formula (1): xBaTiO3-yBiFeO3-zBi(M0.5Ti0.5)O3 (1), where M represents at least one type of element selected from the group consisting of Mg and Ni, x satisfies 0.25≦x≦0.75, y satisfies 0.15≦y≦0.70, z satisfies 0.05≦z≦0.60, and x+y+z=1 is satisfied.
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