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Isao Takasu

Isao Takasu, Komae-Shi JP

Patent application numberDescriptionPublished
20100123389LIGHT-EMITTING COMPOUND AND ORGANIC ELECTROLUMINESCENCE DEVICE - A light-emitting compound includes two or more carbazole skeletons each having two or more fluorine atoms at 2-, 4-, 5- and 7-positions, the carbazole skeleton represented by the formula (1):05-20-2010
20100244002ORGANIC LIGHT-EMITTING DIODE - An organic light-emitting diode includes an anode and a cathode separately arranged from each other, and an emission layer between the anode and the cathode, the emission layer including a single host material and a light-emitting material, the emission layer including, when the host material has a hole transport property, a doped region on a cathode side to which an electron transport material is doped and an undoped region on an anode side to which an electron transport material is not doped, or the emission layer including, when the host material has an electron transport property, a doped region on an anode side to which a hole transport material is doped and an undoped region on a cathode side to which a hole transport material is not doped.09-30-2010
20110057180ORGANIC LIGHT-EMITTING DIODE - According to one embodiment, an organic light-emitting diode includes an anode and a cathode arranged apart from each other, an emission layer, arranged between the anode and cathode, containing a host material of polyvinyl(2,7-difluorocarbazole), a blue-emitting phosphorescent material, and an electron transport material, and a hole transport layer of polyvinylcarbazole arranged adjacent to the emission layer on an anode side.03-10-2011
20110057558ORGANIC LIGHT-EMITTING DIODE - An organic light-emitting diode includes an anode and a cathode arranged apart from each other, and an emissive layer arranged between the anode and the cathode and containing a host material and an emitting dopant, the host material containing a plurality of indole skeletons represented by the general formula (1):03-10-2011

Isao Takasu, Tokyo JP

Patent application numberDescriptionPublished
20090020773SEMICONDUCTOR LIGHT EMITTING DEVICE AND METHOD OF MANUFACTURING THE SAME - A method of manufacturing a semiconductor light emitting device. The method includes: mounting a semiconductor light emitting element on a flat substrate; covering the semiconductor light emitting element on the flat substrate by a cover layer in a domed shape to form a light emitting device, the cover layer including at least a phosphor layer and a coating resin layer that are laminated in order, so as to fill around the semiconductor light emitting element; measuring an emission condition of the light emitting device; and forming a convex lens unit on the outermost of the coating resin layer using a liquid droplet discharging apparatus to adjust an emission distribution of the light emitting device based on the measured emission condition.01-22-2009
20090021140LIGHT EMITTING DEVICE AND METHOD OF MANUFACTURING THE SAME - A method of manufacturing a light emitting device. The method includes: mounting a light emitting chip on a substrate; forming a transparent resin portion and a phosphor layer by using a liquid droplet discharging apparatus, the transparent resin portion being formed in a shape of a dome and covering the light emitting chip to fill an exterior thereof on the substrate, a phosphor layer containing phosphor and being formed on an exterior of the transparent resin portion close to at least a top side thereof; and forming a reflecting layer at a position exterior of the transparent resin portion and the phosphor layer close to the substrate.01-22-2009
20110039359Light emitting device and method of manufacturing the same - A method of manufacturing a light emitting device. The method includes: mounting a light emitting chip on a substrate; forming a transparent resin portion and a phosphor layer by using a liquid droplet discharging apparatus, the transparent resin portion being formed in a shape of a dome and covering the light emitting chip to fill an exterior thereof on the substrate, a phosphor layer containing phosphor and being formed on an exterior of the transparent resin portion close to at least a top side thereof; and forming a reflecting layer at a position exterior of the transparent resin portion and the phosphor layer close to the substrate.02-17-2011
20110175067ORGANIC LIGHT-EMITTING DIODE - According to one embodiment, there is provided an organic light-emitting diode including an anode and a cathode arranged apart from each other, an emissive layer arranged between the anode and the cathode, a hole injection layer arranged between the anode and the emissive layer and including a polyethylenedioxythiophene, and a hole-transport layer arranged between the hole injection layer and the emissive layer and including a hole-transport material. The emissive layer includes a cathode side first area including a hole transport host material, an electron transport host material and an emitting dopant, and an anode side second area including the hole transport host material and no electron transport host material.07-21-2011

Patent applications by Isao Takasu, Tokyo JP

Isao Takasu, Kawasaki-Shi JP

Patent application numberDescriptionPublished
20080230771THIN FILM TRANSISTOR AND METHOD FOR MANUFACTURING THE SAME - It is made possible to provide a thin film transistor having transistor characteristics that do not widely vary. A thin film transistor includes: a substrate; a pair of insulating layers formed at a distance from each other on the substrate; a source electrode formed on one of the insulating layers, and a drain electrode formed on the other one of the insulating layers; a semiconductor layer formed to cover the source electrode, the drain electrode, and the substrate; a gate insulating film formed on the semiconductor layer; and a gate electrode formed on the gate insulating film.09-25-2008
20090101944ELECTRONIC DEVICE AND METHOD FOR MANUFACTURING THE SAME - It is made possible to form an interelectrode gap with high precision, without a decrease in the simplicity and convenience of the process to be carried out by an ink jet technique. A method for manufacturing an electronic device, includes: applying a water repellent agent onto a substrate by an ink jet technique to form a water repellent region on the substrate; dropping a solution containing a conductive ink material along edges of the water repellent region on the substrate by the ink jet technique to form a source electrode and a drain electrode; and forming a semiconductor layer to cover the water repellent region, the source electrode, and the drain electrode.04-23-2009

Patent applications by Isao Takasu, Kawasaki-Shi JP

Isao Takasu, Minato-Ku JP

Patent application numberDescriptionPublished
20110180835ORGANIC ELECTROLUMINESCENCE DEVICE AND METHOD FOR MANUFACTURING THE ORGANIC ELECTROLUMINESCENCE DEVICE - According to one embodiment, in an organic electroluminescence device, a first substrate has a first refractive index n07-28-2011