发明名称 |
Ink jet recording head and ink jet recording apparatus |
摘要 |
<p>An ink jet recording head comprises a pressure generating chamber communicating with a nozzle opening, and a piezoelectric element a lower electrode provided on an area facing the pressure generating chamber via an insulating layer, a piezoelectric layer provided on the lower electrode, and an upper electrode provided on the piezoelectric layer. At least both ends of the lower electrode in a width direction thereof are positioned within the area facing the pressure generating chamber, and the piezoelectric layer covers sides of both ends of the lower electrode in the width direction thereof. <IMAGE></p> |
申请公布号 |
EP0963846(A2) |
申请公布日期 |
1999.12.15 |
申请号 |
EP19990110876 |
申请日期 |
1999.06.07 |
申请人 |
SEIKO EPSON CORPORATION |
发明人 |
SHIMADA, MASATO;SAKAI, SHINRI;MORIYA SOUICHI;MIYATA YOSHINAO;FURUHATA, YUTAKA |
分类号 |
B41J2/14;B41J2/16;(IPC1-7):B41J2/14 |
主分类号 |
B41J2/14 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|