The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 09, 2016
Filed:
Apr. 01, 2014
Canon Kabushiki Kaisha, Tokyo, JP;
Satoshi Tsutsui, Yokohama, JP;
Etsuko Sawada, Tokyo, JP;
Ken Ikegame, Ebina, JP;
Hiroaki Mihara, Machida, JP;
Yohei Hamade, Tokyo, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A process for producing a liquid ejection head having a substrate and an ejection orifice forming member having an ejection orifice for ejecting liquid, including forming, on the substrate, a photocationically polymerizable resin layer which includes a photocationically polymerizable resin material and becomes the ejection orifice forming member; laminating, on the uncured photocationically polymerizable resin layer, a layer containing a condensation product of a hydrolyzable silane compound having a cationically polymerizable epoxy group and a hydrolyzable silane compound having a fluorine-containing group; laminating a water-repellent layer including a hydrolyzable silane compound having a perfluoropolyether group on the condensation-product-containing layer; subjecting the photocationically polymerizable resin layer, condensation-product-containing layer, and water-repellent layer to pattern exposure; collectively curing exposed portions of the photocationically polymerizable resin layer, condensation-product-containing layer, and water-repellent layer; and removing non-exposed portions of the photocationically polymerizable resin layer, condensation-product-containing layer, and water-repellent layer to form the ejection orifice.