Piezoelectric inkjet printhead and method of manufacturing the same
US7703895B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2006 |
| Grant date | Apr 27, 2010 |
| Priority date | — |
| Expiry date | Jul 1, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14419
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A piezoelectric inkjet printhead including an upper substrate, having an ink inlet, a manifold connected with the ink inlet, and a plurality of pressure chambers arranged along at least one side of the manifold, wherein the ink inlet passes through the upper substrate, and the manifold and the pressure chambers are formed in a lower surface of the upper substrate, a lower substrate disposed directly adjacent the upper substrate, the lower substrate having a plurality of restrictors each connecting the manifold with one end of each of the pressure chambers, and a plurality of nozzles each being formed in a position of the lower substrate that corresponds to the other end of each of the pressure chambers to vertically pass through the lower substrate, wherein the plurality of restrictors are formed in an upper surface of the lower substrate, and a plurality of piezoelectric actuators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.