Piezoelectric type ink-jet printing head having a pressure chamber plate which is less flexible than piezoelectric elements
US6007189A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Aug 21, 1995 |
| Grant date | Dec 28, 1999 |
| Priority date | — |
| Expiry date | Aug 21, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/14201
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A piezoelectric type ink-jet printing head including a pressure chamber plate having a plurality of pressure chambers and a plurality of ink supply ports for supplying ink into the respective pressure chambers, a nozzle plate having a plurality of nozzles and a piezoelectric element having a surface, at least parts thereof defining a plurality of displacement portion. The nozzle plate is attached to one of the surfaces of the pressure chamber plate, in such a manner that the respective nozzles are connected to the respective pressure chambers. The other surface of the pressure chamber plate is attached to the piezoelectric element, in such a manner that each of the displacement portions of the piezoelectric element defines at least one of walls of each of the pressure chambers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.