Inkjet head which arranges protective layer at surface to which nozzle plate is connected and method for manufacturing the inkjet head
US6450623B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1999 |
| Grant date | Sep 17, 2002 |
| Priority date | — |
| Expiry date | Feb 24, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/14209
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention has an object to provide an inkjet head and a method for manufacturing the inkjet head which not only protects a member at and/or near a surface onto which the nozzle plate is connected (nozzle connection surface), but also shortens the manufacturing time. A protective layer is provided between the nozzle plate and the piezo-electric element, enabling only the protective layer to be polished, protecting the piezo-electric element from being damaged by the polishing when the nozzle connection surface is formed. After the inkjet head is completed, the protective layer prevents ink leakage to the piezo-electric element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.