Idemitsu Kosan Co., Ltd.
|Idemitsu Kosan Co., Ltd. Patent applications|
|Patent application number||Title||Published|
|20150255729||AROMATIC AMINE DERIVATIVE, AND ORGANIC ELECTROLUMINESCENT ELEMENT - Provided are an organic electroluminescence device that not only provides high efficiency but also has a long lifetime, and an aromatic amine derivative that realizes the device. The organic electroluminescence device includes an aromatic amine derivative, including at least one substituent A having dibenzofuran and at least one substituent B selected from groups each having dibenzofuran or carbazole, in a molecule thereof, in which the substituent A and the substituent B include groups different from each other, and the substituent A and the substituent B are bonded to the same nitrogen atom, or different nitrogen atoms, in the molecule. The molecules of the aromatic amine derivative hardly crystallize, which improves a yield in the production of the organic electroluminescence device. In the organic electroluminescence device, including an organic thin film layer formed of one or more layers including at least a light emitting layer, the organic thin film layer being interposed between a cathode and an anode, the aromatic amine derivative is contained in at least one layer, particularly a hole transport layer, in the organic thin film layer.||09-10-2015|
|20150255726||NITROGEN-CONTAINING HETEROCYCLIC DERIVATIVE, ORGANIC ELECTROLUMINESCENCE ELEMENT MATERIAL USING SAME, AND ORGANIC ELECTROLUMINESCENCE ELEMENT AND ELECTRONIC DEVICE USING SAME - A nitrogen-containing heterocyclic derivative in which an indole structure is fused to a benzophenanthrene ring is a novel material useful as a material for organic electroluminescence devices for the production of organic electroluminescence devices and electronic equipment.||09-10-2015|
|20150252283||GREASE COMPOSITION - A grease composition contains a calcium sulfonate complex grease and an additive. The additive includes an overbased metal sulfonate and an antioxidant. The overbased metal sulfonate is preferably an overbased calcium sulfonate. The antioxidant is preferably an aminic antioxidant.||09-10-2015|
|20150252226||FUNCTIONALIZED ALPHA-OLEFIN POLYMER, AS WELL AS CURED COMPOSITION AND CURED ARTICLE USING SAME - A functionalized α-olefin polymer having an α-olefin polymer main chain and an alkoxysilyl group and satisfying the following (a) to (d): (a) The meso-pentad fraction [mmmm] is less than 20 mol %, or the meso-diad fraction [m] is less than 95 mol %. (b) The weight-average molecular weight (Mw) is from 1,000 to 500,000. (c) The alkoxysilyl group concentration in all the monomer units is from 0.01 to 50 mol %. (d) The α-olefin polymer is a propylene homopolymer, a 1-butene homopolymer or a propylene-1-butene copolymer.||09-10-2015|
|20150249219||BISCARBAZOLE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT ELEMENT USING SAME - A biscarbazole derivative having a specific group, which is represented by formula (1);||09-03-2015|
|20150249215||POLYMER COMPOUND, MATERIAL FOR ELECTRONIC ELEMENTS, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENTS, AND ORGANIC ELECTROLUMINESCENT ELEMENT - Provided are a polymer compound, which comprises a copolymer containing at least a unit B, and a unit A and/or a unit C referring to repeating units A, B and C, and which has a weight-average molecular weight of from 50,000 to 1,500,000; a material for electronic devices and a material for organic electroluminescent devices comprising the compound; an organic electroluminescent device having an anode, a cathode and an organic thin film layer, wherein at least one organic thin film layer contains the polymer compound; a coating liquid containing the polymer compound and a solvent; and a method for producing an organic electroluminescent device using the coating liquid. Also provided is a polymer compound suitable to a coating method; a material for electronic devices and a material for organic electroluminescent devices comprising the compound; and an organic EL device, a coating liquid and a method for producing an organic EL device using the compound.||09-03-2015|
|20150243905||BISCARBAZOLE DERIVATIVE HOST MATERIALS AND GREEN EMITTER FOR OLED EMISSIVE REGION - An organic electroluminescence device utilizes a novel combination comprising one or more biscarbazole derivative compounds as the phosphorescent host material in combination with a green phosphorescent dopant material in the light emitting region of the device, where the biscarbazole derivative compounds are represented by a formula (1A) or (1B) below; where A||08-27-2015|
|20150243891||AROMATIC AMINE DERIVATIVE, AND ORGANIC ELECTROLUMINESCENT ELEMENT USING SAME - An aromatic amine derivative represented by formula (1):||08-27-2015|
|20150240182||LUBRICATING OIL COMPOSITION - A lubricating oil composition includes: a base oil; a component (A) that is a dialkyl hydrogen phosphite; a component (B) that is a sulfur antioxidant; and a component (C) that is a polyalkenyl succinimide.||08-27-2015|
|20150239204||MULTILAYER NONWOVEN FABRIC AND METHOD FOR PRODUCING SAME - Provided are a multilayer nonwoven fabric having a meltblown nonwoven fabric layer and a spunbonded nonwoven fabric layer, the multilayer nonwoven fabric having high strength and high water pressure resistance, and a method for producing the same. The multilayer nonwoven fabric includes three or more layers, wherein two outermost layers are spunbonded nonwoven fabric layers, at least one inner layer is a meltblown nonwoven fabric layer, and a resin that forms the spunbonded nonwoven fabric layer has a melting endotherm ΔH, as measured from a melting endothermic curve which is obtained by holding the resin at −10° C. for 5 minutes under a nitrogen atmosphere and then increasing the temperature at a rate of 10° C./min with a differential scanning calorimeter (DSC), of 90 J/g or less.||08-27-2015|
Patent applications by Idemitsu Kosan Co., Ltd.