发明名称 |
Layered-type piezoelectric element and method for producing the layered-type piezoelectric element |
摘要 |
A stacked body is formed from alternating piezoelectric ceramic layers 40 and internal electrode layers 42, 44. At least a central portion of a stacked body is divided into a plurality of actuator portions 46a, 46b, and 46c by elongated holes 52 opened in the stacked direction. The portions are supported at their end portions by a piezoelectric non-active portion 48. Desired actuator portions can be driven independently by selectively applying voltage to the electrodes corresponding to the actuator portions 46a, 46b, and 46c. <IMAGE> |
申请公布号 |
EP0721839(A3) |
申请公布日期 |
1996.11.20 |
申请号 |
EP19950309526 |
申请日期 |
1995.12.29 |
申请人 |
BROTHER KOGYO KABUSHIKI KAISHA |
发明人 |
OKAWA, YASUO;CHIKAOKA, YASUJI;SAKAIDA, ATSUO;SUZUKI, YOSHIHUMI;IKEZAKI, YOSHIYUKI |
分类号 |
B41J2/045;B41J2/055;B41J2/14;B41J2/16 |
主分类号 |
B41J2/045 |
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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