Ejection device and inkjet head with silicon nozzle plate
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United States of America Patent
Stats
-
Mar 8, 2005
Grant Date -
May 16, 2002
app pub date -
Dec 20, 2001
filing date -
May 14, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A silicon nozzle plate includes nozzles each with a first nozzle portion having a circular cross-section and a second nozzle portion having a circular cross-section wherein the circular cross-section of the first nozzle portion is smaller than the circular cross-section of the second nozzle portion. In one embodiment the nozzle plate is utilized in an inkjet head and includes a recess having a flat bottom surface that commonly communicates with a plurality of first nozzle portions and a through hole that exposes terminal portions that supply control signals to pressure generators.
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