Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2007-10-02
2007-10-02
Tugbang, A. Dexter (Department: 3729)
Metal working
Method of mechanical manufacture
Electrical device making
C029S890100, C347S047000, C347S056000, C347S061000
Reexamination Certificate
active
11014596
ABSTRACT:
A method for manufacturing an ink-jet recording head. The method includes forming a photosensitive resin layer on a support component and forming through holes in the resin layer. Since the diameters of the through hole on both sides of the photosensitive resin layer are made equal, the bonding area of a filter to a substrate is ensured, and the aperture area of the through hole per unit area is increased. A maximum aperture diameter is made to be smaller than or equal to a maximum linear distance between intersection points of a straight line passing through the geometric center of the ejection nozzle and an edge of the ejection nozzle. The head substrate and the filter are press-contacted. The support component is removed. The resulting recording head can prevent a reduction of the yield due to non-ejection of ink.
REFERENCES:
patent: 5141596 (1992-08-01), Hawkins
patent: 5458254 (1995-10-01), Miyagawa et al.
patent: 04-52050 (1992-05-01), None
patent: 05-254120 (1993-05-01), None
patent: 5-318742 (1993-12-01), None
patent: 2000-094700 (2000-04-01), None
patent: 2003-311966 (2003-11-01), None
Canon Kabushiki Kaisha
Canon U.S.A. Inc I. R. Div
Tugbang A. Dexter
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