Liquid ejection head, liquid ejection apparatus, and manufacturing method of liquid ejection head
US7581809B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2006 |
| Grant date | Sep 1, 2009 |
| Priority date | — |
| Expiry date | Jun 4, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J29/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A liquid ejection head includes an energy-generating element arranged on a semiconductor substrate, a barrier layer deposited on the semiconductor substrate for forming a liquid chamber in the periphery of the energy-generating element, and a nozzle sheet bonded on the barrier layer and having a nozzle formed at a position opposing the energy-generating element, in which the liquid ejection head ejects liquid contained in the liquid chamber from the nozzle as liquid droplets by the energy-generating element, and the barrier layer is provided with a plurality of depressions, each having an independent contour, arranged within a range, which is separated from the border of the barrier layer, on an adhesive region adhering to the nozzle sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.