发明授权
EP2623323B1 Liquid ejection head and liquid ejection apparatus
有权
FlüssigkeitsausstoßkopfundFlüssigkeitsausstoßvorrichtung
- 专利标题： Liquid ejection head and liquid ejection apparatus
- 专利标题（中）： FlüssigkeitsausstoßkopfundFlüssigkeitsausstoßvorrichtung
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申请号： EP13153508.0申请日： 2013-01-31
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公开(公告)号： EP2623323B1公开(公告)日： 2015-03-04
- 发明人: Hirai, Eiju , Yazaki, Shiro , Sumi, Koji , Takabe, Motoki , Kato, Jiro , Ito, Hiroshi , Shimizu, Toshihiro , Kamijo, Takahiro , Torimoto, Tatsuro , Kojima, Chikara
- 申请人： Seiko Epson Corporation
- 申请人地址： 4-1, Nishishinjuku 2-chome Shinjuku-ku Tokyo JP
- 专利权人： Seiko Epson Corporation
- 当前专利权人： Seiko Epson Corporation
- 当前专利权人地址： 4-1, Nishishinjuku 2-chome Shinjuku-ku Tokyo JP
- 代理机构： Miller Sturt Kenyon
- 优先权： JP2012019569 20120201
- 主分类号： B41J2/14
- IPC分类号： B41J2/14 ; B41J2/16
摘要：
A liquid ejection head includes a substrate in which a pressure generating chamber that communicates with a nozzle opening is formed; and a piezoelectric element having a piezoelectric layer, a first electrode that is formed on a surface of the piezoelectric layer on a side of the substrate so as to correspond to the pressure generating chamber, and a second electrode that is formed on a surface of the piezoelectric layer opposite to the side on which the first electrode is formed so as to extend over a plurality of the pressure generating chambers, wherein the second electrode is formed to extend to an outside of the pressure generating chamber in a longitudinal direction of the pressure generating chamber.
公开/授权文献
- EP2623323A1 Liquid ejection head and liquid ejection apparatus 公开/授权日：2013-08-07
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