Ink jet print head and manufacturing method thereof

Metal working – Method of mechanical manufacture – Fluid pattern dispersing device making – e.g. – ink jet

Reexamination Certificate

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Details

C029S025350, C347S040000, C347S044000

Reexamination Certificate

active

07913388

ABSTRACT:
A nozzle unit having a nozzle, a flow channel unit having a pressure chamber and a through hole to be communicated with the pressure chamber and an actuator for causing the pressure chamber to discharge ink are respectively formed. The nozzle unit and the actuator have substantially the same planar dimensions. In the nozzle unit, a spacer plate having a communicating hole penetrating in the plate thickness direction corresponding to the nozzle is preliminarily bonded with the first plate, which is to be the nozzle plate, and the nozzle is formed at the first plate material through the communicating hole with laser. The nozzle unit and the actuator which have been respectively formed are bonded with the flow channel unit at positions facing each other simultaneously.

REFERENCES:
patent: 6955418 (2005-10-01), Ito
patent: 7047643 (2006-05-01), Maeda et al.
patent: 7540084 (2009-06-01), Kobayashi
patent: 2005/0068380 (2005-03-01), Ito
patent: 2005/0185025 (2005-08-01), Shimada et al.
patent: 2005/0195249 (2005-09-01), Nakamura et al.
patent: 2005/0253488 (2005-11-01), Ito
patent: 2006/0021223 (2006-02-01), Wakayama et al.
patent: 2004-25636 (2004-01-01), None
patent: 2005-246779 (2005-09-01), None
patent: 2005-322850 (2005-11-01), None

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