发明名称 |
PIEZOELECTRIC MATERIAL, PIEZOELECTRIC ELEMENT, LIQUID DISCHARGE HEAD, ULTRASONIC MOTOR, AND DUST CLEANING DEVICE |
摘要 |
A piezoelectric material including a barium bismuth niobate-based tungsten bronze structure metal oxide having a high degree of orientation is provided. A piezoelectric element, a liquid discharge head, an ultrasonic motor, and a dust cleaning device including the piezoelectric material are also provided. A piezoelectric material includes a tungsten bronze structure metal oxide that includes metal elements which are barium, bismuth, and niobium, and tungsten. The metal elements satisfy following conditions on a molar basis: when Ba/Nb=a, 0.30≦̸a≦̸0.40, and when Bi/Nb=b, 0.012≦̸b≦̸0.084. The tungsten content on a metal basis is 0.40 to 3.00 parts by weight relative to 100 parts by weight of the tungsten bronze structure metal oxide. The tungsten bronze structure metal oxide has a c-axis orientation. |
申请公布号 |
EP2537193(B1) |
申请公布日期 |
2014.05.14 |
申请号 |
EP20110729778 |
申请日期 |
2011.06.07 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
HAYASHI, JUMPEI;MATSUDA, TAKANORI;WATANABE, TAKAYUKI |
分类号 |
C01F11/00;B08B7/02;B08B13/00;B41J2/14;B41J2/16;C01G33/00;C04B35/00;C04B35/495;H01L21/8246;H01L27/105;H01L41/08;H01L41/083;H01L41/09;H01L41/187;H01L41/22;H01L41/257;H01L41/39;H01L41/43;H02N2/10;H02N2/16 |
主分类号 |
C01F11/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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