发明申请
- 专利标题： LIQUID EJECTION HEAD AND LIQUID EJECTION APPARATUS
- 专利标题（中）： 液体喷射头和液体喷射装置
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申请号： US15296404申请日： 2016-10-18
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公开(公告)号： US20170036446A1公开(公告)日： 2017-02-09
- 发明人: Eiju HIRAI , Shiro YAZAKI , Koji SUMI , Motoki TAKABE , Jiro KATO , Hiroshi ITO , Toshihiro SHIMIZU , Takahiro KAMIJO , Tatsuro TORIMOTO , Chikara KOJIMA
- 申请人： Seiko Epson Corporation
- 优先权： JP2012-019569 20120201
- 主分类号： B41J2/14
- IPC分类号： B41J2/14 ; H01L41/047 ; B41J2/16 ; H01L41/08
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
- US10059101B2 Liquid ejection head and liquid ejection apparatus 公开/授权日：2018-08-28
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