| 发明名称 |
LIQUID EJECTION HEAD AND LIQUID EJECTION APPARATUS |
| 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. |
| 申请公布号 |
US2014210916(A1) |
申请公布日期 |
2014.07.31 |
| 申请号 |
US201414244250 |
申请日期 |
2014.04.03 |
| 申请人 |
Seiko Epson Corporation |
发明人 |
HIRAI Eiju;YAZAKI Shiro;SUMI Koji;TAKABE Motoki;KATO Jiro;ITO Hiroshi;SHIMIZU Toshihiro;KAMIJO Takahiro;TORIMOTO Tatsuro;KOJIMA Chikara |
| 分类号 |
B41J2/14 |
主分类号 |
B41J2/14 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A liquid ejection head comprising:
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. |
| 地址 |
Tokyo JP |
