Ink-jet recording head and method for producing same

Details Ink-jet recording head and method for producing same Ink-jet recording head and method for producing same

2007-09-10

2009-06-23

McPherson, John A. (Department: 1795)

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Making named article

Reexamination Certificate

active

07550252

ABSTRACT:
A method for producing an ink-jet recording head having a discharge port configured to discharge ink, a passage-forming member configured to form an ink passage communicating with the discharge port, and a substrate provided with an energy-generating element configured to generate energy utilized for discharging ink includes the steps of forming a pattern for the passage on the substrate, the pattern being composed of a positive photosensitive resin that is insensitive to light having a wavelength of 300 nm to 470 nm, forming a coating resin layer to be the passage-forming member on the substrate having the pattern, exposing the coating resin layer to only light having a wavelength of 300 nm or more to form the discharge port, and removing the pattern to form the passage.

REFERENCES:
patent: 4657631 (1987-04-01), Noguchi
patent: 6390606 (2002-05-01), Terui et al.
patent: 2004/0072107 (2004-04-01), Kubota et al.
patent: 2006/0014107 (2006-01-01), Park et al.

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