| 发明名称 |
Actuator which drives a driven member by using piezo-electric elements. |
| 摘要 |
<p>A piezo-electric drive unit (1) is disposed in contact with a driven member (4), with an a.c. voltage and a d.c. voltage superimposed thereon being applied to the drive unit (1). The pushing force acting between the drive unit (1) and driven member (4) is controlled by adjusting the d.c. voltage.</p> |
| 申请公布号 |
EP0297574(A2) |
申请公布日期 |
1989.01.04 |
| 申请号 |
EP19880110469 |
申请日期 |
1988.06.30 |
| 申请人 |
HITACHI, LTD. |
发明人 |
MORI, KENJI;HIRAI, HIROMU;KOBAYASHI, ISAO |
| 分类号 |
H01L41/04;H01L41/09 |
主分类号 |
H01L41/04 |
| 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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