Ink jet recording head with ink filter formed of a plurality of stacked films
US7901064B2 · kind B2 · utility
14Cited by
15References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2007 |
| Grant date | Mar 8, 2011 |
| Priority date | — |
| Expiry date | Jan 6, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14403
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink jet recording head includes: a substrate; a plurality of ink discharge ports formed to a front face side of the substrate, and a plurality of ink flow paths communicating with the ink discharge ports; an ink supply opening extending through the substrate and communicating with the plurality of ink flow paths; and a filter formed in an opening portion of the ink supply opening arranged in the front face side of the substrate, the filter being constituted of two or more stacked films having formed therein a plurality of opening portions. In this case, the stacked films are arranged with a spacing therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.