Ink-jet head and ink-jet recording apparatus
US8602530B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2012 |
| Grant date | Dec 10, 2013 |
| Priority date | — |
| Expiry date | Feb 15, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/08
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink-jet head includes a nozzle plate having nozzles, a vibrating plate on the nozzle plate, liquid chambers formed of spaces partitioned by division walls, a piezoelectric element having a common electrode, a piezoelectric body and an individual electrode layered in this order on a surface of the vibrating plate, a first insulator film having a first opening and a second insulator film having a second opening layered in this order on the first surface, a first wire drawn from the individual electrode via the first opening and the second opening, a third insulator film having a third opening on the first wire; and a second wire drawn via the third opening, where the third insulator film is formed in a first region of the second insulator film and is not formed in a second region excluding a region including the first wire formed above the liquid chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.