发明名称 |
PIEZOELECTRIC CERAMIC, METHOD FOR MAKING THE SAME, PIEZOELECTRIC ELEMENT, LIQUID DISCHARGE HEAD, AND ULTRASONIC MOTOR |
摘要 |
A piezoelectric ceramic that includes barium titanate and 0.04 mass % or more and 0.20 mass % or less manganese relative to barium titanate. The piezoelectric ceramic is composed of crystal grains. The crystal grains include crystal grains A having an equivalent circular diameter of 30μm or more and 300μm or less and crystal grains B having an equivalent circular diameter of 0.5μm or more and 3μm or less. The crystal grains A and the crystal grains B individually form aggregates and the aggregates of the crystal grains A and the aggregates of the crystal grains B form a sea-island structure.
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申请公布号 |
US2011128327(A1) |
申请公布日期 |
2011.06.02 |
申请号 |
US20100952644 |
申请日期 |
2010.11.23 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
KUBOTA MAKOTO;FURUTA TATSUO;SAITO HIROSHI;IFUKU TOSHIHIRO;TAKEDA KENICHI;FUKUI TETSURO |
分类号 |
B41J2/045;H01L41/18;H02N2/00 |
主分类号 |
B41J2/045 |
代理机构 |
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