发明名称 |
STACKED PIEZOELECTRIC ELEMENT, MANUFACTURING METHOD THEREOF AND VIBRATION WAVE DRIVING APPARATUS |
摘要 |
A stacked piezoelectric element comprising that can suppress periodic damping on miniaturization of a vibration wave motor and improve its performance. A stacked piezoelectric element comprises piezoelectric layers and electrode layers alternately stacked to have a shape of a cylinder. The electrode layers are divided into a plurality of electrode layer regions along a circumferential surface of the shape of a cylinder.
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申请公布号 |
US2009199381(A1) |
申请公布日期 |
2009.08.13 |
申请号 |
US20090417220 |
申请日期 |
2009.04.02 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
MARUYAMA YUTAKA;OHASHI KAISHI;TSUKIMOTO TAKAYUKI |
分类号 |
H01L41/24 |
主分类号 |
H01L41/24 |
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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