Ink jet printing head for improving resolution and decreasing crosstalk
US6126279A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1998 |
| Grant date | Oct 3, 2000 |
| Priority date | — |
| Expiry date | Jun 30, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14387
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink-jet printing head comprises: a pressurizing chamber substrate having first and second sides opposing each other; a plurality of pressurizing chambers formed on the first side of the pressurizing chamber substrate; channels formed on the second side of the pressuring chamber substrate to be opposite to the pressuring chambers, respectively; oscillating plate films for pressurizing ink within the respective pressurizing chambers; and piezoelectric thin-film elements, each having upper and lower electrodes and a piezoelectric film sandwiched between the upper and lower electrodes, the piezoelectric thin-film being formed in the channel, wherein at least the upper electrode is formed to have a narrower width than that of the pressurizing chamber. And a method for producing the ink-jet head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.