Ink jet recording head equipped with a discharging opening forming member including a protruding portion and a recessed portion
US4994825A · kind A · utility
89Cited by
5References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1989 |
| Grant date | Feb 19, 1991 |
| Priority date | — |
| Expiry date | Jun 30, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/21
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink jet recording head is disclosed. The recording head includes a plate member provided with discharge openings for discharging ink and a head main body having an ink channel communicating with the discharging openings. The head main body is bonded to the plate member at a bonding surface and an uneven portion including a protruding portion and a recessed portion is formed at the bonding surface between the plate member and the head main body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.