Method of producing nozzle plate and said nozzle plate

Details Method of producing nozzle plate and said nozzle plate Method of producing nozzle plate and said nozzle plate

2007-08-15

2010-11-02

Luu, Matthew (Department: 2861)

Metal working

Method of mechanical manufacture

Fluid pattern dispersing device making, e.g., ink jet

C347S047000

Reexamination Certificate

active

07823288

ABSTRACT:
A nozzle plate includes a nozzle surface and a nozzle hole. The nozzle surface defines an ink ejection port. The nozzle hole includes a taper hole portion and a curved-surface hole portion. The taper hole portion has an inner surface of a truncated conical shape and has the smallest diameter at one end thereof. The curved-surface hole portion has an inner surface of a curved-surface shape. The inner diameter of the curved-surface hole portion gradually decreases as approaching from the one end of the taper hole portion to the ink ejection port.

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