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Koichiro Iida, Kanagawa JP

Koichiro Iida, Kanagawa JP

Patent application numberDescriptionPublished
20090021146ORGANIC COMPOUND, CHARGE TRANSPORT MATERIAL AND ORGANIC ELECTROLUMINESCENT DEVICE - An organic compound is represented by following Formula (I):01-22-2009
20090033208FILM FORMING COMPOSITION AND ORGANIC ELECTROLUMINESCENT DEVICE - A film-forming composition that attains an improvement in the solubility of a hole-injecting/transporting material and/or an electron-accepting compound and has a drying rate appropriate for stable formation of a uniform coating film, being suitable for the formation of a hole-injecting/transporting layer. This composition comprises a hole-injecting/transporting material and/or an electron-accepting compound and a liquid in which the hole-injecting/transporting material and/or the electron-accepting compound are dissolved. This liquid mainly contains a solvent whose molecule has an aromatic ring and/or an aliphatic ring and an oxygen atom and which has either a boiling point of at least 200° C. or a vapor pressure of 1 torr or lower at 25° C.02-05-2009
20090066223ORGANIC ELECTRIC FIELD LIGHT EMITTING ELEMENT AND PRODUCTION THEREFOR - A composition for an organic electroluminescent device is a composition for forming an organic light emitting layer of an organic electroluminescent device by wet coating process. The composition contains a phosphorescent material, a charge transport material, and a solvent, in which the phosphorescent material and the charge transport material are each an unpolymerized organic compound, and the first oxidation potential of the phosphorescent material E03-12-2009
20090230846MONOAMINE COMPOUND, CHARGE-TRANSPORTING MATERIAL, AND ORGANIC ELECTROLUMINESCENT DEVICE - The present invention provides an organic electroluminescent device exhibiting a long life, a high luminance, and a high efficiency.09-17-2009
20090236973ORGANIC COMPOUND, CHARGE-TRANSPORTING MATERIAL, AND ORGANIC ELECTROLUMINESCENT ELEMENT - An organic compound and a charge-transporting material which are excellent in both a hole-transporting property and an electron-transporting property and have excellent electrical oxidation/reduction durability and a high triplet excitation level are provided, and an organic electroluminescent device which uses this organic compound and has high luminous efficiency and high driving stability and long lifetime is provided. One molecule of the organic compound has two or more partial structures represented by the following Formula (I):09-24-2009
20090284134ORGANIC COMPOUND, CHARGE-TRANSPORTING MATERIAL, COMPOSITION FOR CHARGE-TRANSPORTING MATERIAL AND ORGANIC ELECTROLUMINESCENT DEVICE - An organic compound having excellent heat resistance, an excellent amorphous nature, an excellent ability to transport charges, highly excited singlet and triplet states, and excellent solubility in an organic solvent is an organic compound represented by Formula (I):11-19-2009
20100045174COMPOSITION FOR USE IN ORGANIC DEVICE, POLYMER FILM, AND ORGANIC ELECTROLUMINESCENT ELEMENT - A composition for use in an organic device, useful in producing an organic device, such as an organic electroluminescent element, having high operation stability, is a composition for use in an organic device that contains at least two cross-linking compounds, at least two of the cross-linking compounds having different numbers of cross-linking groups. A polymer film produced by forming a film of the composition for use in an organic device and then polymerizing the cross-linking compounds. An organic electroluminescent element that includes an anode and a cathode on a substrate and at least one organic layer disposed between the anode and the cathode, wherein at least one of the at least one organic layer is a layer that is produced by forming a film of the composition for use in an organic device and then polymerizing the cross-linking compounds.02-25-2010
20100090590ORGANIC ELECTROLUMINESCENCE DEVICE AND METHOD OF PRODUCING ORGANIC DEVICE - To provide an organic electroluminescence device that can suppress rise in the driving voltage at the time of constant-current energization and degradation in brightness at the time of energization, and thus excels in its driving lifetime, the organic electroluminescence device comprises: a substrate; an anode and a cathode overlying the substrate; and a plurality of organic layers disposed between the anode and the cathode, and the plurality of organic layers comprise at least: a first layer formed by means of polymerization of a polymerizable compound; and a second layer disposed adjacently to the first layer and containing a polymerization initiator.04-15-2010
20110001134COMPOSITION FOR CHARGE-TRANSPORTING FILM AND ION COMPOUND, CHARGE-TRANSPORTING FILM AND ORGANIC ELECTROLUMINESCENT DEVICE USING SAME, AND METHOD FOR MANUFACTURING ORGANIC ELECTROLUMINESCENT DEVICE AND METHOD FOR PRODUCING CHARGE-TRANSPORTING FILM - An excellent composition for a charge-transport film, which can be used to produce an organic electroluminescence device having excellent heat-resistant property, high hole injection/transport capacity and capable of functioning at a low voltage, is proposed.01-06-2011
20110042661CONJUGATED POLYMER, INSOLUBILIZED POLYMER, ORGANIC ELECTROLUMINESCENCE ELEMENT MATERIAL, COMPOSITION FOR ORGANIC ELECTROLUMINESCENCE ELEMENT, POLYMER PRODUCTION PROCESS, ORGANIC ELECTROLUMINESCENCE ELEMENT, ORGANIC EL DISPLAY AND ORGANIC EL LIGHTING - An object of the present invention is to provide a conjugated polymer which has a high hole transportability and is excellent in solubility and depositability. Another object of the present invention is to provide an organic electroluminescence element which is capable of low voltage driving and has a high luminous efficiency and drive stability. The conjugated polymer of the present invention is a conjugated polymer containing a specific structure as the repeating unit, where the conjugated polymer contains an insolubilizing group as a substituent, the weight average molecular weight (Mw) is 20,000 or more and the dispersity (Mw/Mn) is 2.40 or less.02-24-2011
20110108814POLYMER COMPOUND, NET-LIKE POLYMER COMPOUND PRODUCED BY CROSSLINKING THE POLYMER COMPOUND, COMPOSITION FOR ORGANIC ELECTROLUMINESCENCE ELEMENT, ORGANIC ELECTROLUMINESCENCE ELEMENT, ORGANIC EL DISPLAY, AND ORGANIC EL LIGHTING - An object of the invention is to provide a polymer compound having a high hole transport capacity, excellent in electrochemical stability, and suitable to film formation according to a wet film formation method. Another object of the invention is to provide an organic electroluminescence element having a high current efficiency, a low drive voltage, and a long derive lifetime. The polymer compound has a crosslinking group bonding to the arylamine moiety in the repeating unit via at least one single bond therebetween.05-12-2011

Patent applications by Koichiro Iida, Kanagawa JP