发明名称 |
Electromechanical conversion element, manufacturing method thereof, piezoelectric type actuator, liquid droplet jetting head, and inkjet recording apparatus |
摘要 |
An electromechanical conversion element for converting an electric signal into mechanical displacement or converting mechanical displacement into an electric signal, includes a bottom electrode in which an alumina film, a metal film, and a conductive oxide film are sequentially laminated; an electromechanical conversion film disposed on the conductive oxide film of the bottom electrode; and a top electrode disposed on the electromechanical conversion film, wherein the metal film is solid. |
申请公布号 |
US8960867(B2) |
申请公布日期 |
2015.02.24 |
申请号 |
US201313848243 |
申请日期 |
2013.03.21 |
申请人 |
Ricoh Company, Ltd. |
发明人 |
Ishimori Masahiro;Shinkai Masaru;Mizukami Satoshi;Kuroda Takahiko |
分类号 |
B41J2/045;H01L41/00;H02N2/00;H01L41/08;H01L41/09;H01L41/047;H01L41/29;H01L41/318;B41J2/14;B41J2/16 |
主分类号 |
B41J2/045 |
代理机构 |
Cooper & Dunham LLP |
代理人 |
Cooper & Dunham LLP |
主权项 |
1. An electromechanical conversion element for converting an electric signal into mechanical displacement or converting mechanical displacement into an electric signal, the electromechanical conversion element comprising:
a bottom electrode in which an alumina film, a metal film, and a conductive oxide film are sequentially laminated; an electromechanical conversion film disposed on the conductive oxide film of the bottom electrode; and a top electrode disposed on the electromechanical conversion film. |
地址 |
Tokyo JP |