发明名称 LIQUID EJECTING HEAD, PIEZOELECTRIC ELEMENT, AND LIQUID EJECTING APPARATUS
摘要 A liquid ejecting head includes a piezoelectric element in which a lower electrode, a piezoelectric layer, and an upper electrode are laminated in this order, and a flow path forming substrate in which the piezoelectric element is formed above one surface thereof and a pressure generating chamber being communicated with a nozzle opening is provided, in which the upper electrode is formed so as to extend over an upper surface of the piezoelectric layer and an upper portion of side faces of the piezoelectric layer, and a protective film is formed above portions of the piezoelectric layer, which are not covered by the upper electrode.
申请公布号 US2009244214(A1) 申请公布日期 2009.10.01
申请号 US20090413422 申请日期 2009.03.27
申请人 SEIKO EPSON CORPORATION 发明人 FUJITA SEIICHI
分类号 B41J2/045 主分类号 B41J2/045
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