Liquid-jet head and liquid-jet apparatus
US6840601B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 25, 2003 |
| Grant date | Jan 11, 2005 |
| Priority date | — |
| Expiry date | May 13, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14491
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Disclosed are a liquid-jet recording head and a liquid-jet recording apparatus, which are capable of retaining a fine liquid ejecting characteristic and obtaining a stable liquid ejecting characteristic. The liquid-jet recording head, which is provided with a passage-forming substrate formed with pressure generating chambers 12 to communicate with nozzle orifices, and piezoelectric elements provided on one side of the passage-forming substrate through a vibration plate to generate pressure changes inside the pressure generating chambers, includes an insulation layer continuously provided at least in a region opposing to the vicinity of longitudinal end portions of the piezoelectric elements along a direction of arrangement of the piezoelectric elements, the insulation layer also having a penetrated portion in a region opposing to a common electrode provided in common to the plurality of piezoelectric elements, and a connective wiring layer continuously provided on the insulation layer to be electrically connected to the common electrode via the penetrated portion. Accordingly, a resistance value of the common electrode is substantially reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.