Method of producing a liquid ejection head

Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Making named article

Reexamination Certificate

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Details

C347S055000

Reexamination Certificate

active

06919169

ABSTRACT:
The present invention provides a method of producing a liquid ejection head having a solution guide member protruding on a head substrate. The solution guide member has a sharp-pointed portion protruding from a liquid surface of a flowing solution in which charged particles are dispersed. The solution guide member guides the solution to the sharp-pointed portion such that the solution is ejected from the sharp-pointed portion by an electrostatic force. The method comprises the steps of forming a photosensitive resin layer on the head substrate; molding a convex portion having the sharp-pointed portion on a surface of the formed photosensitive resin layer by pressing a mold member against the surface of the photosensitive resin layer; and exposing a region of the molded convex portion; and developing the exposed photosensitive resin layer to produce the solution guide member provided on the head substrate.

REFERENCES:
patent: 5915763 (1999-06-01), Masuda
patent: 6076918 (2000-06-01), Shima et al.
patent: 6092889 (2000-07-01), Nakamoto et al.
patent: 6158844 (2000-12-01), Murakami et al.
patent: 0 822 075 (1998-02-01), None
patent: 9-76505 (1997-03-01), None
patent: 10-230607 (1998-09-01), None
patent: 2000-025237 (2000-01-01), None

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