Invention Grant
- Patent Title: Liquid ejection head and liquid ejection apparatus
- Patent Title (中): 液体喷射头和液体喷射装置
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Application No.: US13755342Application Date: 2013-01-31
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Publication No.: US08727510B2Publication Date: 2014-05-20
- Inventor: Eiju Hirai , Shiro Yazaki , Koji Sumi , Motoki Takabe , Jiro Kato , Hiroshi Ito , Toshihiro Shimizu , Takahiro Kamijo , Tatsuro Torimoto , Chikara Kojima
- Applicant: Seiko Epson Corporation
- Applicant Address: JP
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: JP2012-019569 20120201
- Main IPC: B41J2/045
- IPC: B41J2/045

Abstract:
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.
Public/Granted literature
- US20130194353A1 LIQUID EJECTION HEAD AND LIQUID EJECTION APPARATUS Public/Granted day:2013-08-01
Information query
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