| 发明名称 |
INK JET HEAD AND INK JET PRINTING APPARATUS HAVING THE SAME |
| 摘要 |
An ink jet head includes a pressure chamber formed to hold ink, a vibrating plate, a driving element, and a protective film covering the driving element. The vibrating plate is provided at one end of the pressure chamber, and has a first opening through which the ink held in the pressure chamber is discharged. The driving element is provided on a surface of the vibrating plate and is configured to cause a volume of the pressure chamber to be changed by deforming the vibrating plate upon application of voltage to the driving element. The protective film has a second opening aligned with the first opening and through which the ink held in the pressure chamber is discharged. |
| 申请公布号 |
US2014267498(A1) |
申请公布日期 |
2014.09.18 |
| 申请号 |
US201414209363 |
申请日期 |
2014.03.13 |
| 申请人 |
TOSHIBA TEC KABUSHIKI KAISHA |
发明人 |
YOKOYAMA Shuhei;KUSUNOKI Ryutaro;ARAI Ryuichi;TANUMA Chiaki |
| 分类号 |
B41J2/14;B41J2/16 |
主分类号 |
B41J2/14 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An ink jet head comprising:
a pressure chamber formed to hold ink; a vibrating plate forming a wall of the pressure chamber and having a first opening through which the ink held in the pressure chamber is discharged; a driving element that is provided on a surface of the vibrating plate and configured to cause a volume of the pressure chamber to be changed by deforming the vibrating plate upon application of voltage to the driving element; and a protective film covering the driving element and having a second opening aligned with the first opening and through which the ink held in the pressure chamber is discharged. |
| 地址 |
Tokyo JP |
