Metal working – Method of mechanical manufacture – Fluid pattern dispersing device making – e.g. – ink jet
Reexamination Certificate
2011-03-29
2011-03-29
Tugbang, A. Dexter (Department: 3729)
Metal working
Method of mechanical manufacture
Fluid pattern dispersing device making, e.g., ink jet
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.
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Angwin David P
Brother Kogyo Kabushiki Kaisha
Frommer & Lawrence & Haug LLP
Tugbang A. Dexter
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