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Nobutaka Fukagawa, Kanagawa JP

Nobutaka Fukagawa, Kanagawa JP

Patent application numberDescriptionPublished
20080284957Optical Resin Film, Optical Compensation Sheet, Polarizing Plate and Liquid Crystal Display - An optical resin film is provided, in which a wavelength dispersion of a retardation in planar direction and a wavelength dispersion of a retardation in thickness direction are independently controlled, is provided and has at least an additive having a negative intrinsic birefringence.11-20-2008
20090021671Cellulose Acylate Film, Method for Producing Cellulose Acylate Film, Polarizing Plate and Liquid Crystal Display Device - A method for producing a cellulose acylate film containing an additive comprising an aliphatic compound, the method contains a process of thermal shrinkage treatment at an atmospheric temperature higher than the glass transition temperature (Tg) in the state where at least one of the transverse direction and the machine direction of the film is free, and a cellulose acylate film obtained by the above method.01-22-2009
20090021673Liquid Crystal Display Device - A cellulose acylate film, which has an in-plane retardation (Re) and a retardation in a thickness direction (Rth) satisfying relations of equations (1) to (6) and has a thickness of 30 μm or greater but less than 70 μm:01-22-2009
20090027599Optical film, optical compensation sheet, polarizing plate, and liquid crystal display device - An optical film, which contains a cellulose acylate, at least one compound of formula (I) in an amount of 0.01 to 20 mass parts, and at least one cyclic compound having at least three substituents in an amount of 0.01 to 20 mass parts, to 100 mass parts of the cellulose acylate:01-29-2009
20090033835Optical Compensation Sheet, Polarizing Plate and Liquid Crystal Display - An optical compensation sheet is provided and has a stretched polymer film or stretched cellulose acylate film and at least one optical anisotropic layer containing a liquid crystal compound, and has retardations satisfying the specific relationships defined in the specification.02-05-2009
20090066887Polymer Film, Polarizing Plate Protective Film, Polarizing Plate and Liquid Crystal Display Device - A polymer film satisfying the following formulae (1) to (3):03-12-2009
20090085008Cellulose compound composition and cellulose compound film - A cellulose compound composition, containing at least one compound of formula (1):04-02-2009
20090109379LIQUID CRYSTAL DISPLAY DEVICE - A polymer film satisfying the following formulae (1) to (4):04-30-2009
20090117294CELLULOSE DERIVATIVE FILM, OPTICAL COMPENSATION FILM, POLARIZING PLATE, AND LIQUID CRYSTAL DEVICE - A cellulose derivative film having high optical isotropy over the whole visible region and high durability against high temperature and humidity conditions is provided. The film contains a cellulose derivative having a substituent the polarizability anisotropy Δα (=αx−(αy+αz)/2) of which is 2.5×1005-07-2009
20090122237POLYMER FILM, METHOD FOR PRODUCING POLYMER FILM, OPTICAL FILM AND POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME - A polymer film, which comprises: organic compound fine particles containing a retardation developer and having an average particle size of from 1 nm to 1,000 nm; a method for producing a polymer film, which comprises: casting a dope containing a polymer, a solvent for dissolving the polymer, a retardation developer and an additive other than the retardation developer on a support; peeling off; drying; and stretching, wherein the retardation developer is uniformly dissolved in the dope, and between the casting and the stretching, organic compound fine particles containing the retardation developer are formed within a film; and an optical film, which comprises: at least one compound represented by formula (I) as defined in the specification; and at least one Rth raising agent.05-14-2009
20090153782LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device comprising a liquid crystal cell and two polarizing plates disposed on the both sides thereof, wherein a protective film satisfying the specific conditions of retardation is sandwitched each between the liquid crystal cell and the polarizing plates. The liquid crystal display device can be easily produced at low costs and has a low viewing angle dependency of color.06-18-2009
20090251650Liquid crystal display device - A liquid crystal display device comprising a first polarizer, a first retardation film satisfying (1) to (6) below, a liquid crystal cell, a second retardation film satisfying (7) to (12) below, a second polarizer in this order wherein the absorption axis of the first and second polarizer and the slow axis of the first and second retardation film are substantially in parallel, respectively:10-08-2009
20090290100Cellulose Acylate Film, Method of Producing the Same, Cellulose Derivative Film, Optically Compensatory Film Using the Same, Optically-Compensatory Film Incorporating Polarizing Plate, Polarizing Plate and Liquid Crystal Display Device - A method of producing a cellulose derivative film, the method comprising: forming a film with a solvent cast method from a dope including a cellulose derivative satisfying following conditions (a) and (b): (a) at least one among three hydroxyl groups included in a glucose unit of cellulose is substituted by a substituent of which a polarizability anisotropy Δα represented as following Expression (1) is 2.5×1011-26-2009
20110001908LIQUID-CRYSTAL DISPLAY DEVICE - A liquid-crystal display device comprising a liquid-crystal cell, a first polarizing element and a second polarizing element disposed on either side of the liquid-crystal cell respectively, a first retardation layer between the first polarizing element and the liquid-crystal cell, and a second retardation layer between the second polarizing element and the liquid-crystal cell, wherein a transmission axis of the first polarizing element is perpendicular to the slow axis of the first retardation layer; and a transmission axis of the second polarizing element is parallel to the slow axis of the second retardation layer; and the first retardation layer and the second retardation layer satisfy the formula (1) 0 nm<ΔRe01-06-2011

Patent applications by Nobutaka Fukagawa, Kanagawa JP