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Hirokazu Kyota

Hirokazu Kyota, Kanagawa JP

Patent application numberDescriptionPublished
20080226244Compound, Polymerizable Composition, Optical Device, and Method for Producing Refractive Index Profile Optical Device - Using a compound of the following formula (1) makes it possible to provide an optical device having a reduced transmission loss.09-18-2008
20090116808COPOLYMER AND POLYMERIZABLE COMPOSITION - A copolymer containing a repeating unit of formula (1) and a repeating unit of formula (2-1) or (2-2):05-07-2009
20100015360AQUEOUS INK COMPOSITION, AQUEOUS INK COMPOSITION FOR INKJET RECORDING, AND INKJET RECORDING METHOD - The present invention provides an aqueous ink composition including at least a sensitizing dye represented by the following Formula (i), an ethylenically unsaturated bond-containing water-soluble polymerizable compound, a polymerization initiator and water:01-21-2010
20100063203COATING COMPOSITION - A coating composition containing a build-up organic pigment fine-particle.03-11-2010
20100247796ACTIVE ENERGY RAY-CURABLE COMPOSITION, ACTIVE ENERGY RAY-CURABLE INK COMPOSITION AND INKJET RECORDING METHOD - The present invention provides an active energy ray-curable composition containing: a compound configured to generate an acid upon irradiation with active energy rays; and a cationic polymerizable monomer, the cationic polymerizable monomer containing a polyfunctional oxirane compound having, in a molecule, one bicyclo ring skeleton or tricyclo ring skeleton having at least one oxygen atom in the ring, provided that 3-membered rings and 4-membered rings containing oxygen atoms are not included in the ring structure of the bicyclo ring skeleton or tricyclo ring skeleton, and the polyfunctional oxirane compound carrying two or more oxirane rings.09-30-2010
20110052831NOVEL OXETANE COMPOUND, ACTIVE ENERGY RAY-CURABLE COMPOSITION, ACTIVE ENERGY RAY-CURABLE INK COMPOSITION AND INKJET RECORDING METHOD - The present invention provides an oxetane compound represented by the following formula (1), and a active energy ray-curable composition including the oxetane compound as a polymerizable monomer. In formula (1), R03-03-2011

Patent applications by Hirokazu Kyota, Kanagawa JP

Hirokazu Kyota, Ashigarakami-Gun JP

Patent application numberDescriptionPublished
20080264300Organic-pigment aqueous dispersion, method of producing the same, and colored coating composition and coated article using the same - An organic-pigment aqueous dispersion, containing a pigment at a concentration of 6 to 30 mass %, and having a haze of 0.3 to 10%, as determined by enclosing the dispersion in a transparent glass cell of optical distance 0.2 mm and analyzing with integrating-sphere photoelectric photometry; and a colored coating composition using the same.10-30-2008
20090120325METHOD OF PRODUCING AN ORGANIC FINE PARTICLE DISPERSION, ORGANIC FINE PARTICLE DISPERSION OBTAINED BY THE SAME, AND INK-JET RECORDING INK AND PAINT USING THE DISPERSION - A method of producing a dispersion of organic fine particles having a volume average particle diameter (Mv) of 10 nm to 100 nm, which has the step of: subjecting an organic fine particle dispersion liquid containing a high molecular compound to heating treatment under flowing through a channel.05-14-2009
20090241800METHOD OF PRODUCING AN ORGANIC PIGMENT FINE PARTICLE DISPERSION, AND INK-JET RECORDING INK AND PAINT USING THE ORGANIC PIGMENT FINE PARTICLE OBTAINED BY THE SAME - A method of producing an organic pigment fine particle dispersion, including feeding at least three liquids, which are a solution containing an organic pigment dissolved in an organic solvent in the presence of an alkali, a solution containing a dispersant, and an aqueous medium, into separate channels and bringing the at least three liquids into junction with each other in a channel simultaneously to produce fine particles of the organic pigment.10-01-2009
20090247730METHOD OF PRODUCING A POLYMER-PROCESSED ORGANIC FINE PARTICLE DISPERSION - A method of producing a polymer-processed organic fine particle dispersion, having a step of: feeding an organic fine particle dispersion containing a polymerizable compound in a channel and polymerizing the polymerizable compound during the flow of the dispersion in the channel.10-01-2009