Liquid ejection head and method of manufacturing the same
US9873255B2 · kind B2 · utility
3Cited by
0References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2016 |
| Grant date | Jan 23, 2018 |
| Priority date | — |
| Expiry date | Mar 24, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/1645
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A liquid ejection head includes a substrate having an energy generating element arranged therein and an ejection port forming member laid as superposed above the substrate. At least one ejection port is formed so as to run through the ejection port forming member. The ejection port forming member has a concave portion including the ejection port formed therein on the surface thereof opposite to the surface thereof facing the substrate, and has a convex portion on the surface of the ejection port forming member facing the substrate so as to correspond to the concave portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.