Hodogaya Chemical Co., Ltd. Patent applications |
Patent application number | Title | Published |
20160126468 | INDENOINDOLE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT ELEMENT - According to the present invention, there are provided an indenoindole derivative represented by the following general formula (1); and an organic electroluminescent element including a pair of electrodes and at least one organic layer sandwiched therebetween, wherein the above compound is used as a constituent material for the at least one organic layer. The indenoindole derivative of the present invention provides an organic compound, which is excellent in hole injection/transport performance, has electron blocking capability, is highly stable in a thin film state, and excels in heat resistance, as a material for a high efficiency, high durability organic electroluminescent element. An organic electroluminescent element formed using this compound is highly efficient and highly durable. | 05-05-2016 |
20160087215 | NOVEL PYRIMIDINE DERIVATIVES AND ORGANIC ELECTROLUMINESCENT DEVICES - Pyrimidine derivatives of the present invention are represented by the following general formula (1), | 03-24-2016 |
20160005982 | NOVEL NAPHTHOTRIAZOLE DERIVATIVES AND ORGANIC ELECTROLUMINESCENCE DEVICES - Naphthotriazole derivatives represented by the following general formula (1), | 01-07-2016 |
20150287920 | ORGANIC ELECTROLUMINESCENT DEVICE - An organic electroluminescent device having a capping layer composed of material having a high refractive index that involves only small differences in refractive indices measured in the blue, green, and red wavelength regions, excelling in thin film stability and durability and having no absorption in the respective wavelength ranges of blue, green, and red is provided to improve device characteristics of the organic electroluminescent device, particularly to greatly improve the coupling-out efficiency. | 10-08-2015 |
20150249218 | COMPOUND HAVING INDENOACRIDAN RING STRUCTURE, AND ORGANIC ELECTROLUMINESCENT DEVICE - An organic compound with excellent characteristics excelling in hole injecting and transporting performance and having an electron-blocking ability, high stability in a thin film state and excellent heat resistance is provided as a material for an organic electroluminescent device of high efficiency and high durability, and the organic electroluminescent device of high luminous efficiency and high durability is provided using this compound. The compound of a general formula (1) having an indenoacridan ring structure is used as a constituent material of at least one organic layer in the organic electroluminescent device that includes a pair of electrodes and one or more organic layers sandwiched between the pair of electrodes. | 09-03-2015 |
20150034924 | NOVEL TRIPHENYLENE DERIVATIVES AND ORGANIC ELECTROLUMINESCENT DEVICES USING SAID DERIVATIVES - Triphenylene derivatives represented by the following general formula ( | 02-05-2015 |
20140374721 | NOVEL BENZOTRIAZOLE DERIVATIVES AND ORGANIC ELECTROLUMINESCENT DEVICES USING THE DERIVATIVES - Benzotriazole derivatives represented by the following general formula (1), | 12-25-2014 |
20140339518 | PHOSPHORESCENT ORGANIC LIGHT EMITTING DEVICES COMBINED WITH HOLE TRANSPORT MATERIAL HAVING HIGH OPERATING STABILITY - An improved OLED includes an emitter layer disposed between a cathode and an anode where the emitter layer includes a host material and a phosphorescent emitter material. A first hole transport layer is disposed between the emitter layer and the anode and a second hole transport layer is disposed between the first hole transport layer and the anode. The first hole transport layer includes a first hole transport material that is a carbazole type compound and the second hole transport layer includes a second hole transport material that is different from the first hole transport material. The phosphorescent emitter material includes a phosphorescent organometallic compound that is a heteroleptic compound represented by the formula L | 11-20-2014 |
20140205945 | CHARGE CONTROLLING AGENT AND TONER USING SAME - To provide a charge controlling agent for electrophotography, which presents sufficient triboelectric chargeability to a toner, is useful particularly for a color toner and further for a polymerized toner, increases a charge rising rate, has a high electric charge amount, is excellent in charging characteristics, stability over time and environmental stability and yet is safe without posing any problem regarding waste regulations, and a negatively chargeable toner for developing an electrostatic image, which uses such a charge controlling agent and which has a high charging performance. A charge controlling agent comprising, as an effective component, at least one type of cyclic phenol sulfide represented by the following formula (1), and a toner comprising such a charge controlling agent: | 07-24-2014 |
20140171628 | PROCESS FOR PRODUCING A CHARGE CONTROL AGENT - A process for producing a charge control agent comprising an azo-based iron complex salt compound as an effective component, comprises:
| 06-19-2014 |
20140163232 | METHOD OF PRODUCING AROMATIC AMINO COMPOUNDS - A method of producing an aromatic amino compound by using a primary or secondary amine compound having an aromatic ring group and a halogenated aromatic compound as starting materials, reacting the amine compound with the halogenated aromatic compound in the presence of a copper catalyst and a base so as to produce the aromatic amino compound having a structure in which an aromatic ring group derived from the halogenated aromatic compound is coupled to the amino group of the amine compound, wherein the amine compound and the halogenated aromatic compound are reacted together under a condition where an aromatic oxycarboxylic acid having a hydroxyl group and a hydroxycarbonyl group that are bonded to neighboring carbon atoms, is made present together with the copper catalyst and the base. | 06-12-2014 |
20140124756 | COMPOUND HAVING AN INDOLOCARBAZOLE RING STRUCTURE AND ORGANIC ELECTROLUMINESCENT DEVICE - A compound having an indolocarbazole ring structure is represented by the following general formula (1), and is used as a material for forming a highly efficient and highly durable organic electroluminescent device. The compound features excellent hole injection/transport capability, has electron blocking power and is highly stable in the form of a thin film. | 05-08-2014 |
20140121300 | CARBON FIBROUS CONJUNCT AND COMPOSITE MATERIAL USING THEREOF - The disclosed is a carbon fibrous conjunct in a granule form which comprises carbon fibrous structures and a binder by which the carbon fibrous structures are bound together,
| 05-01-2014 |
20140048787 | COMPOUND HAVING TRIAZOLE RING STRUCTURE SUBSTITUTED WITH PYRIDYL GROUP AND ORGANIC ELECTROLUMINESCENT DEVICE - An organic compound having excellent electron transport property and hole blocking property as a material for a highly efficient organic EL device, and also provide a highly efficient organic EL device using the compound. This invention relates to a compound having a triazole ring structure to which a substituted pyridyl group is bonded, represented by the following general formula (1), and to an organic electroluminescence device comprising the compound: | 02-20-2014 |
20140042425 | COMPOUND HAVING ACRIDAN RING STRUCTURE, AND ORGANIC ELECTROLUMINESCENT DEVICE - An organic compound with characteristics excelling in hole-injecting/transporting performance and having an electron blocking ability, a highly stable thin-film state, and excellent heat resistance is provided as material for an organic electroluminescent device of high efficiency and high durability, and the organic electroluminescent device of high efficiency and high durability is provided using this compound. The compound of a general formula (Chemical Formula 1) having a substituted acridan ring structure is used as a constituent material of at least one organic layer in the organic electroluminescent device that includes a pair of electrodes and one or more organic layers sandwiched between the pair of electrodes. | 02-13-2014 |
20140039221 | ARYLAMINE COMPOUND USEFUL IN AN ORGANIC ELECTROLUMINESCENT DEVICE - A problem of the invention is to provide an organic EL device having a high efficiency, a low driving voltage and a long life, by combining various materials for organic EL device, which are excellent in an injection or transportation performance of holes or electrons, and in stability and durability in a thin film, so as to enable the respective materials to effectively reveal their characteristics. The invention relates to an organic electroluminescent device including at least an anode electrode, a hole-injecting layer, a hole-transporting layer, an emitting layer, an electron-transporting layer and a cathode electrode in this order, in which the hole-injecting layer contains an arylamine compound having, in its molecule, a structure in which three or more triphenylamine structures are connected through a single bond or a hetero atom-free divalent group; and the hole-transporting layer contains an arylamine compound having two triphenylamine structures in its molecule. | 02-06-2014 |
20140034936 | COMPOUND HAVING SUBSTITUTED TRIPHENYLENE RING STRUCTURE, AND ORGANIC ELECTROLUMINESCENT DEVICE - An organic compound having an excellent electron injection and transport performance is provided as a material for a low-power-consumption organic electroluminescent device. A low-power-consumption organic electroluminescent device is also provided by using the compound. The compound is a compound of general formula (1) or (2) having a substituted bipyridyl and triphenylene ring structure. The organic electroluminescent device includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes, and uses the compound as constituent material of at least one of the organic layers. | 02-06-2014 |
20140034935 | COMPOUND HAVING SUBSTITUTED ORTHO-TERPHENYL STRUCTURE, AND ORGANIC ELECTROLUMINESCENT DEVICE - A light-emitting-layer host material is provided as material for high-efficiency organic electroluminescent devices. The light-emitting-layer host material has a high excitation triplet level, and is capable of completely confining the triplet excitons of phosphorescent material. A high-efficiency and high-luminance organic electroluminescent device is provided by using the compound. The compound is a compound of general formula (1) having a bipyridyl group and an ortho-terphenyl structure. The organic electroluminescent device includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes, and uses the compound as constituent material of at least one of the organic layers. | 02-06-2014 |
20140021451 | ORGANIC ELECTROLUMINESCENT DEVICE - An organic electroluminescent device comprises, between an anode and a cathode, a hole injection layer, a hole-transporting layer, a luminous layer and an electron-transporting layer, wherein the hole injection layer contains an arylamine compound (α) having three or more triphenylamine skeletons, the hole-transporting layer contains an arylamine compound (β) having two triphenylamine skeletons, and the electron-transporting layer contains an electron-transporting compound having an anthracene ring skeleton and a pyridoindole ring skeleton. The organic EL device emits light highly efficiently, drives on a low voltage, and features excellent durability and long life. | 01-23-2014 |
20140004459 | TONER FOR DEVELOPING ELECTROSTATIC CHARGE IMAGE | 01-02-2014 |
20130340182 | DYE COMPOSITION FOR HAIR DYEING AND METHOD FOR PRODUCING THE SAME - The present invention relates to an azo dye composition for hair dyeing that has an excellent performance as a dye for hair dyeing and proves negative in the Ames test, and also relates to a method for producing the composition. An object of the present invention is to develop a purification method for a dye composition for hair dyeing mainly containing an azo dye and proving negative in the Ames test, and to provide the dye composition for hair dyeing that is produced by applying the purification method and indicates negative in the Ames test. The dye composition for hair dyeing contains, as a main component, the azo dye having trimethylammonio, and the dye composition for hair dyeing is characterized in that the result of the Ames test is negative. | 12-26-2013 |
20130328041 | COMPOUNDS HAVING BIPYRIDYL GROUP AND CARBAZOLE RING, AND ORGANIC ELECTROLUMINESCENT ELEMENT - The present invention relates to a compound having a bipyridyl group and a carbazole ring, which is represented by the following general formula (1); and an organic electroluminescent element containing a pair of electrodes and at least one organic layer interposed therebetween, in which the compound is used as a constituent material of the at least one organic layer: | 12-12-2013 |
20130328040 | ORGANIC ELECTROLUMINESCENT DEVICE - An organic electroluminescent device comprising, between an anode and a cathode, a hole-transporting layer, a luminous layer and an electron-transporting layer, wherein the hole-transporting layer contains an arylamine compound (X) having a molecular structure to which three or more triphenylamine skeletons are singly bonded or bonded through a divalent hydrocarbon group and an arylamine compound (Y) having a molecular structure to which two triphenylamine skeletons are singly bonded or bonded through the divalent hydrocarbon group. The device excels in hole and electron injection/transport property, stability and durability in the form of thin films, and is highly efficient, becomes luminous on a low driving voltage, and has a long life. | 12-12-2013 |
20130309926 | THERMOSETTING RESIN-CONTAINING SOLUTION IN WHICH FINE CARBON FIBERS ARE DISPERSED AND THERMOSETTING RESIN FORMED ARTICLES THEREOF - In dispersing a fine carbon fiber in a thermosetting resin, the invention disperses and disentangles the fine carbon fiber being aggregates form in the thermosetting resin solution, maintains the stable dispersed state, lowers the viscosity of the thermosetting resin solution in which the fine carbon fiber is dispersed, and provides a thermosetting resin formed article containing the fine carbon fiber by curing the fine carbon fiber dispersion solution and a production method thereof. | 11-21-2013 |
20130296578 | SURFACE-MODIFIED SILICA POWDER AND METHOD FOR PRODUCING THE SAME, AS WELL AS TONER COMPOSITION FOR ELECTROPHOTOGRAPHY - Provided by the present invention is a surface-modified silica powder, characterized in that the said powder is obtained by surface treatment of a silica powder with one or two or more of a compound (A) and with an aminosilane (B), wherein the fixing rate of the compound (A) and the aminosilane (B) is a total of 50% or more, the hydrophobic rate is 80% or more, and the triboelectrostatic charge amount is 200 μC/g or less in its absolute value. The surface-modified silica powder of the present invention can stabilize many properties including fluidity and electrostatic properties while can significantly reduce problems such as fogging and decrease in image quality without significantly deteriorating characteristics of a developing agent and so forth when this is used as an external additive. | 11-07-2013 |
20130292663 | COMPOUND HAVING SUBSTITUTED BIPYRIDYL GROUP AND PYRIDOINODOLE RING STRUCTURE, AND ORGANIC ELECTROLUMINESCENT DEVICE - To provide an organic compound of excellent characteristics that exhibits excellent electron-injecting/transporting performance with hole blocking ability, and has high stability in the thin-film state, as material for an organic electroluminescent device having high efficiency and high durability, and to provide the organic electroluminescent device having high efficiency and high durability using the compound. An organic electroluminescent device includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes, wherein the compound of general formula (1) in which a substituted bipyridyl group and a pyridoindole ring structure are bonded via a phenylene group, is used as a constituent material of at least one organic layer. | 11-07-2013 |
20130285025 | COMPOUND HAVING TRIAZOLE RING STRUCTURE SUBSTITUTED WITH PYRIDYL GROUP AND ORGANIC ELECTROLUMINESCENT DEVICE - An organic compound having excellent electron transport property and hole blocking property as a material for a highly efficient organic EL device, and also provide a highly efficient organic EL device using the compound. This invention relates to a compound having a triazole ring structure to which a substituted pyridyl group is bonded, represented by the following general formula (1), and to an organic electroluminescence device comprising the compound: | 10-31-2013 |
20130266895 | CHARGE CONTROL AGENT AND TONER USING SAME - The present invention provides a charge control agent containing, as an active substance(s), one or two or more hydantoin derivatives represented by the following formula (1): | 10-10-2013 |
20130177844 | CHARGE CONTROL AGENT AND TONER USING SAME - The present invention provides a positive-charge control agent containing, as an active substance(s), one or two or more rhodanine compounds represented by the following formula (1). | 07-11-2013 |
20130177843 | CHARGE CONTROL AGENT AND TONER USING SAME - The present invention provides a charge control agent containing, as an active substance(s), one or two or more thiazolidinedione derivatives represented by the following formula (1), | 07-11-2013 |
20130157190 | CHARGE CONTROL AGENT AND TONER USING THE SAME | 06-20-2013 |
20130149641 | CHARGE CONTROLLING AGENT AND TONER USING SAME - To provide a charge controlling agent for electrophotography, which presents sufficient triboelectric chargeability to a toner, is useful particularly for a color toner and further for a polymerized toner, increases a charge rising rate, has a high electric charge amount, is excellent in charging characteristics, stability over time and environmental stability and yet is safe without posing any problem regarding waste regulations, and a negatively chargeable toner for developing an electrostatic image, which uses such a charge controlling agent and which has a high charging performance. A charge controlling agent comprising, as an effective component, at least one type of cyclic phenol sulfide represented by the following formula (1), and a toner comprising such a charge controlling agent: | 06-13-2013 |
20130126856 | COMPOUND HAVING INDENOCARBAZOLE RING STRUCTURE, AND ORGANIC ELECTROLUMINESCENT DEVICE - An organic compound with excellent characteristics excelling in hole-injecting/transporting performance and having electron blocking ability, high stability in a thin-film state and high luminous efficiency is provided as material for an organic electroluminescent device. The compound of a general formula (1) having an indenocarbazole ring structure is used as a constituent material of at least one organic layer in the organic electroluminescent device that includes a pair of electrodes and one or more organic layers sandwiched between the pair of electrodes. | 05-23-2013 |
20130126793 | VAPOR-GROWN CARBON FIBER AGGREGATE - [Problems] To provide a vapor-grown carbon fiber aggregate, wherein the carbon fiber has a structure of two or more tubular graphene layers and of which the central portion in cross section of the fiber is hollow, has a little unevenness in the structure and exhibits excellent electric conductivity. | 05-23-2013 |
20130112950 | COMPOUND HAVING CARBAZOLE RING STRUCTURE, AND ORGANIC ELECTROLUMINESCENT DEVICE - There is provided an organic compound of excellent characteristics that exhibits excellent hole-injecting/transporting performance and has high triplet exciton confining capability with an electron blocking ability, and that has high stability in the thin-film state and high luminous efficiency. The compound is used to provide a high-efficiency, high-durability organic electroluminescent device, particularly a phosphorescent organic electroluminescent device. The present invention is a compound of the following general formula having a carbazole ring structure. The compound is used as a constituent material of at least one organic layer in an organic electroluminescent device that includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes. | 05-09-2013 |
20130075715 | COMPOUND HAVING ACRIDAN RING STRUCTURE, AND ORGANIC ELECTROLUMINESCENT DEVICE - An organic compound with characteristics excelling in hole-injecting/transporting performance and having an electron blocking ability, a highly stable thin-film state, and excellent heat resistance is provided as material for an organic electroluminescent device of high efficiency and high durability, and the organic electroluminescent device of high efficiency and high durability is provided using this compound. The compound of a general formula (Chemical Formula 1) having a substituted acridan ring structure is used as a constituent material of at least one organic layer in the organic electroluminescent device that includes a pair of electrodes and one or more organic layers sandwiched between the pair of electrodes. | 03-28-2013 |
20130071780 | TRIPHENYLAMINE DERIVATIVES - [Problems] To provide a novel compound useful as an electric charge transporting agent having a high carrier mobility, and making it possible not only to stably form a photosensitive layer without precipitating crystals or developing pinholes when the photosensitive layer is being formed but also to prepare an organic photosensitive material for electrophotography featuring a high sensitivity and a low residual potential. | 03-21-2013 |
20120319098 | SUBSTITUTED PYRIDYL COMPOUND AND ORGANIC ELECTROLUMINESCENT ELEMENT - The present invention relates to a substituted pyridyl compound represented by the following general formula (1), (2), or (3) and an organic electroluminescent element containing a pair of electrodes and at least one organic layer interposed therebetween, in which the at least one organic layer contains the substituted pyridyl compound represented by the following general formula (1), (2), or (3). | 12-20-2012 |
20120315576 | CHARGE CONTROLLING AGENT AND TONER USING SAME - The present invention provides a charge control agent containing, as an active substance(s), one or two or more rhodanine compounds represented by the following formula (1). | 12-13-2012 |
20120315573 | CHARGE CONTROL AGENT COMPOSITION AND TONER UTILIZING THE SAME - The present invention provides a modified charge control agent composition exhibiting a high charge-imparting effect, and an electrostatic image developing toner containing such a charge control agent composition and having a high electrostatic charge amount and an environmental stability. | 12-13-2012 |
20120298969 | COMPOUND HAVING PYRIDOINDOLE RING STRUCTURE HAVING SUBSTITUTED PYRIDYL GROUP ATTACHED THERETO, AND ORGANIC ELECTROLUMINESCENCE ELEMENT - The invention relates to a compound having a pyridoindole ring structure having a substituted pyridyl group of formula (1); and to an organic electroluminescent device comprising a pair of electrodes and at least one organic layer interposed between the electrodes, wherein at least one of the organic layer(s) contains the compound: | 11-29-2012 |
20120292609 | COMPOUND HAVING TRIPHENYLAMINE STRUCTURE, AND ORGANIC ELECTROLUMINESCENT DEVICE - There is provided an organic compound of excellent characteristics that exhibits excellent hole-injecting/transporting performance and has an electron blocking ability and a highly stable thin-film state with excellent heat resistance. The compound of the present invention is an arylamine compound having a triphenylamine structure. The arylamine compound is used as a constituent material of at least one organic layer in an organic electroluminescent device that includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes. | 11-22-2012 |
20120273767 | ORGANIC ELECTROLUMINESCENT DEVICE - A high-efficiency, high-durability organic electroluminescent device, particularly a phosphorescent organic electroluminescent device is provided by using an organic compound of excellent characteristics that exhibits excellent hole-injecting/transporting performance and has high triplet exciton confining capability with an electron blocking ability, and that has high stability in the thin-film state and high luminous efficiency. | 11-01-2012 |
20120253054 | METHODS FOR PRODUCING OXIDIZED CYCLIC PHENOL SULFIDES - A method for producing an oxidized cyclic phenol sulfide which comprises the step of oxidizing a cyclic phenol sulfide of the following formula (1) as a raw material: | 10-04-2012 |
20120228598 | COMPOUND HAVING A SUBSTITUTED ANTHRACENE RING STRUCTURE AND PYRIDOINDOLE RING STRUCTURE, AND ORGANIC ELECTROLUMINESCENT DEVICE - The present invention relates to a compound having a substituted anthracene ring structure and a pyridoindole ring structure, which is represented by the following general formula (1) or the following general formula (2); and an organic electroluminescent device having a pair of electrodes and at least one organic layer interposed therebetween, in which the compound having a substituted anthracene ring structure and a pyridoindole ring structure, which is represented by the following general formula (1) or the following general formula (2), is used as a constituent material of the aforementioned at least one organic layer. | 09-13-2012 |
20120208117 | DIPHENYLNAPHTHYLAMINE DERIVATIVES - [Problems] To provide a novel compound which has a high carrier mobility and is useful as a charge-transporting agent that is not only capable of stably forming a photosensitive layer without precipitating crystals or forming pinholes at the time of forming the photosensitive layer but is also capable of forming an organic photosensitive material for electrophotography that has a high sensitivity and a low residual potential. | 08-16-2012 |
20120205642 | ORGANIC ELECTROLUMINESCENT DEVICE - A high-efficiency, high-durability organic electroluminescent device, particularly a phosphorescent organic electroluminescent device is provided by using an organic compound of excellent characteristics that exhibits excellent hole-injecting/transporting performance and has high triplet exciton confining capability with an electron blocking ability, and that has high stability in the thin-film state and high luminous efficiency. | 08-16-2012 |
20120175599 | COMPOUND HAVING CARBAZOLE RING STRUCTURE, AND ORGANIC ELECTROLUMINESCENT DEVICE - [Problem] An organic compound of excellent characteristics is provided that exhibits excellent hole-injecting/transporting performance with electron blocking ability, and that has high stability in the thin-film state and high luminous efficiency, the organic compound being provided as material for an organic electroluminescent device having high efficiency and high durability. The invention also provides a high-efficient, high-durable organic electroluminescent device using the compound. | 07-12-2012 |
20120126220 | COMPOUND HAVING SUBSTITUTED ANTHRACENE RING STRUCTURE AND PYRIDOINDOLE RING STRUCTURE, AND ORGANIC ELECTROLUMINESCENT DEVICE - There is provided an organic compound having excellent characteristics, including excellent electron-injecting/transporting performance, hole blocking ability, and high stability in the thin-film state, for use as material of an organic electroluminescent device having high efficiency and high durability. There is also provided a high-efficient and high-durable organic electroluminescent device using the compound. The compound is represented by general formula (1) having a substituted anthracene ring structure and a pyridoindole ring structure. The organic electroluminescent device includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes, and the compound is used as a constituent material of at least one organic layer. | 05-24-2012 |
20120012831 | COMPOUND HAVING BENZOTRIAZOLE RING STRUCTURE AND ORGANIC ELECTROLUMINESCENT ELEMENT - A compound having a benzotriazole ring structure and a formula (1): | 01-19-2012 |
20110272679 | COMPOUND HAVING TRIAZOLE RING STRUCTURE TO WHICH PYRIDYL GROUP IS BONDED, AND ORGANIC ELECTROLUMINESCENT DEVICE - A host compound for a light emitting layer, which is excellent in electron transporting capability and hole blocking capability, has a high triplet excitation level and is capable of completely confining triplet excitons of a phosphorescent material, is provided as a material for an organic electroluminescent device having a high efficiency, and an organic electroluminescent device having a high efficiency and a high luminance is provided by using this compound. | 11-10-2011 |
20110271465 | HAIR DYE AND HAIR DYE COMPOSITION - A hair dye containing a compound represented by the following general formula (I): | 11-10-2011 |
20110257404 | METHOD OF PRODUCING AROMATIC AMINO COMPOUNDS - [Problem] To provide a method of producing an aromatic amino compound by using a primary or secondary amine compound and a halogenated aromatic compound as starting materials, and relying upon the Ullmann reaction, the method being capable of obtaining the highly pure aromatic amino compound in high yields and inexpensively. | 10-20-2011 |
20110220881 | COMPOUND HAVING TRIPHENYLSILYL GROUP AND TRIARYLAMINE STRUCTURE, AND ORGANIC ELECTROLUMINESCENT DEVICE - The invention provides a light emitting layer host compound and an electron-blocking compound that have high excited triplet levels, and can completely confine the triplet excitons of phosphorescent material, for use as the material of a high-efficient organic electroluminescent device. The invention also provides a high-efficient, high-luminance organic electroluminescent device with the use of the compounds. | 09-15-2011 |
20110198543 | AQUEOUS DISPERSION OF FINE CARBON FIBERS, METHOD FOR PREPARING THE AQUEOUS DISPERSION, AND ARTICLES USING THEREOF - Upon dispersing fine carbon fibers into water, by using an anionic surfactant having a high electrostatic repulsion effect, an nonionic surfactant having a high stereoscopic repulsion effect, and an anionic surfactant having high electrostatic and stereoscopic repulsion effects, in combination, an aqueous dispersion of fine carbon fibers which shows a high dispersibility without causing significant cohesion of mutual fine carbon fibers, and maintains a mean particle diameter (d | 08-18-2011 |
20110175079 | COMPOUND HAVING SUBSTITUTED ANTHRACENE RING STRUCTURE AND PYRIDOINDOLE RING STRUCTURE AND ORGANIC ELECTROLUMINESCENCE DEVICE - The present invention provides an organic compound having excellent properties, which is excellent in electron-injection/transport performance, has hole-blocking ability and is high stability in a thin-film state, as a material for an organic electroluminescence device having a high efficiency and a high durability, and provides is an organic electroluminescence device having a high efficiency and a high durability using the compound. The present invention relates to a compound having a substituted anthracene ring structure and a pyridoindole ring structure represented by general formula (1); and an organic electroluminescence device having a pair of electrodes and at least one organic layer interposed between the electrodes in which the at least one organic layer contains the compound. | 07-21-2011 |
20110171454 | CARBON FIBER AND COMPOSITE MATERIAL - An object of the present invention is to provide a carbon fibrous structure having good dispersibility and small variations in electrical conductivity, etc., and being capable of improving physical properties such as electrical properties, mechanical properties and thermal properties by a small amount addition thereof without impairing properties of a matrix. The invention provides a carbon fibrous structure having a three-dimensional network shape and comprising carbon fibers having an average outside diameter of from 100 to 300 nm, wherein the carbon fibrous structure has a plurality of granular parts, and has at least partially a steric network structure of the carbon fibers in a state that a plurality of the carbon fibers sterically extend outwardly from the granular parts and that the extending carbon fibers are also bound with other granular parts, wherein the granular parts have a particle diameter larger than an outer diameter of the carbon fiber, and are formed in a growth process of growing a carbon material in the circumferential direction of catalyst particles used while growing the carbon material into a fibrous shape, by using at least two carbon compounds having different decomposition temperature as carbon sources, and wherein the carbon fibrous structure has a powder resistance of 0.02Ω·cm or less measured at a compression density of 0.8 g/cm | 07-14-2011 |
20110168942 | CARBON FIBROUS AGGREGATOR, METHOD FOR MANUFACTURING THEREOF, AND COMPOSITE MATERIAL INCLUDING THEREOF - Disclosed is a carbon fibrous aggregator obtained by a chemical vapor phase growing method, which comprises plural granular parts, and plural carbon fibers which are mutually independently extended outwardly from their respective granular parts so that each granular part is associated with two or more of carbon fibers, wherein the carbon fibers show a three dimensional expansion in all; and
| 07-14-2011 |
20110133171 | ARYLAMINE COMPOUND AND ORGANIC ELECTROLUMINESCENCE DEVICE - This invention relates to an arylamine compound having a molecular weight of 1,500 to 6,000 represented by formula (1), and to an organic electroluminescence device having a pair of electrodes and at least one organic layer sandwiched therebetween, wherein the arylamine compound of formula (1) is used as a constituting material of the at least one organic layer: | 06-09-2011 |
20110115368 | ARYLAMINE COMPOUND AND ORGANIC ELECTROLUMINESCENT DEVICE - The present invention provides an arylamine compound having a molecular weight of from 1500 to 6000 represented by the general formula (1): | 05-19-2011 |
20110073852 | ORGANIC ELECTROLUMINESCENT DEVICE - A problem of the invention is to provide an organic EL device having a high efficiency, a low driving voltage and a long life, by combining various materials for organic EL device, which are excellent in an injection or transportation performance of holes or electrons, and in stability and durability in a thin film, so as to enable the respective materials to effectively reveal their characteristics. The invention relates to an organic electroluminescent device including at least an anode electrode, a hole-injecting layer, a hole-transporting layer, an emitting layer, an electron-transporting layer and a cathode electrode in this order, in which the hole-injecting layer contains an arylamine compound having, in its molecule, a structure in which three or more triphenylamine structures are connected through a single bond or a hetero atom-free divalent group; and the hole-transporting layer contains an arylamine compound having two triphenylamine structures in its molecule. | 03-31-2011 |
20110036829 | PLANAR HEATING ELEMENT OBTAINED USING DISPERSION OF FINE CARBON FIBERS IN WATER AND PROCESS FOR PRODUCING THE PLANAR HEATING ELEMENT - [Problems] To produce planar heating elements having high exothermic efficiency and provide energy-saving electric carpets, floor heating, wall surface heating appliances and heaters for thawing on roads and/or roofs or antifogging for mirrors. | 02-17-2011 |
20110028737 | METHOD FOR CONTINUOUSLY PRODUCING OXIDIZED CYCLIC PHENOL SULFIDES - The present invention discloses a method for continuously producing an oxidized cyclic phenol sulfide which comprises the continuous steps of reacting a para-alkyl phenol compound as a raw material with 1.7 to 2.5 molar equivalent of sulfur and 0.25 to 0.75 molar equivalent of an alkali metal reagent per 1 mol of the phenol compound (the first step); and oxidizing a cyclic phenol sulfide of the formula (2) produced by the above reaction with an oxidizing agent(s) in the same reactor as that of the first step and without taking the cyclic phenol sulfide out of the reactor; | 02-03-2011 |
20110006291 | COMPOUND HAVING SUBSTITUTED PYRIDYL GROUP AND PYRIDOINDOLE RING STRUCTURE LINKED THROUGH PHENYLENE GROUP, AND ORGANIC ELECTROLUMINESCENT DEVICE - Objects of the present invention are to provide an organic compound having excellent properties, which is excellent in electron-injecting/transporting performances, has hole-blocking ability and is highly stable in a thin-film state, as a material for an organic electroluminescent device having a high efficiency and a high durability; and to provide an organic electroluminescent device having a high efficiency and a high durability using the compound. The invention relates to a compound having a substituted pyridyl group and a pyridoindole ring structure linked through a phenylene group, which is represented by the general formula (1); and an organic EL device comprising a pair of electrodes and at least one organic layer interposed between the electrodes, wherein the at least one organic layer contains the compound: | 01-13-2011 |
20110003695 | METHOD FOR PREPARATION OF AQUEOUS EMULSION USING INTERFACIALLY ACTIVE ORGANIC COMPOUND AS EMULSIFYING AGENT - The present invention provides a method for obtaining O/W emulsions by emulsifying various to-be-emulsified material without the use of any organic solvent, and drying and making into powder the O/W emulsion. The invention relates to a method for producing an O/W emulsion including after preliminarily dispersing a to-be-emulsified material and an interfacially active organic compound in water, heating the preliminary dispersion to a temperature equal to or higher than the melting point of the to-be-emulsified material and equal to or higher than the phase transition temperature of a self-assembled product of the interfacially active organic compound in the absence of an organic solvent, and performing emulsification under a pressure. | 01-06-2011 |
20110001129 | SUBSTITUTED BIPYRIDYL COMPOUND AND ORGANIC ELECTROLUMINESCENT DEVICE - [Problem] To provide an organic compound which shows an excellent electron-injecting/transporting performance, has a hole-blocking ability and shows a high stability as a film, that is, having excellent characteristics as a material for organic electroluminescent device having high efficiency and high durability; and to provide an organic EL device comprising the compound and having high efficiency and high durability. | 01-06-2011 |
20100308322 | COMPOUND HAVING PYRIDOINDOLE RING STRUCTURE BONDED WITH SUBSTITUTED PYRIDYL GROUP, AND ORGANIC ELECTROLUMINESCENT DEVICE - Objects of the invention are to provide an organic compound having excellent properties, which is excellent in electron-injecting/transporting performance, has hole-blocking ability, and is highly stable in a thin-film state, as a material for an organic electroluminescent devices having a high-efficiency and a high durability; and to provide an organic electroluminescent device having a high-efficiency and a high durability using the compound. The invention relates to: a compound having a pyridoindole ring structure bonded with a substituted pyridyl group, which is represented by the following general formula (1); and an organic electroluminescent device comprising a pair of electrodes and at least one organic layer interposed between the electrodes, wherein the at least one organic layer contains the compound. | 12-09-2010 |
20100291480 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE BODY - An object of the present invention is to provide an electrophotographic photosensitive body having improved electrophotographic characteristics such as sensitivity and residual potential and also having excellent durability. The present invention provides an electrophotographic photosensitive body having a layer containing at least one specific p-terphenyl compound and at least one polycarbonate resin represented by the general formula (I): | 11-18-2010 |
20100230660 | COMPOUND HAVING PYRIDOINDOLE RING STRUCTURE HAVING SUBSTITUTED PYRIDYL GROUP ATTACHED THERETO, AND ORGANIC ELECTROLUMINESCENCE ELEMENT - The present invention is to provide an organic compound having excellent characteristics as a material for an organic EL device having a high efficiency and a high durability, and to provide an organic EL device having a high efficiency and a high durability by using the compound. The invention relates to a compound having a pyridoindole ring structure having a substituted pyridyl group attached thereto, which is represented by the general formula (1); and to an organic electroluminescent device comprising a pair of electrodes and at least one organic layer interposed between the electrodes, wherein at least one of the organic layer(s) contains the compound: | 09-16-2010 |
20100174115 | TETRAMINE COMPOUND AND ORGANIC EL DEVICE - The present invention provides a method for producing a tetramine compound represented by formula (1): | 07-08-2010 |
20100171080 | TETRAMINE COMPOUND AND ORGANIC EL DEVICE - The present invention provides a tetramine compound represented by the following general formula (1): | 07-08-2010 |
20100123388 | COMPOUND WHEREIN SUBSTITUTED BIPYRIDYL GROUP IS CONNECTED WITH PYRIDOINDOLE RING STRUCTURE THROUGH PHENYLENE GROUP, AND ORGANIC ELECTROLUMINESCENT DEVICE - Objects of the present invention are to provide an organic compound having excellent properties, which is excellent in electron-injection/transport performances, has hole-blocking ability and is highly stable in a thin-film state, as a material for an organic electroluminescence device having a high efficiency and a high durability, and to provide an organic electroluminescence device having a high efficiency and a high durability using the compound. The invention relates to a compound having a substituted bipyridyl group and a pyridoindole ring structure connected with each other through a phenylene group, which is represented by the general formula (1), and an organic EL device comprising a pair of electrodes and at least one organic layer interposed between the electrodes, wherein the compound is used as a constituent material for the at least one organic layer. | 05-20-2010 |
20100104964 | PHOTORECEPTOR FOR ELECTROPHOTOGRAPHY - An object of the invention is to provide a photoreceptor for electrophotography which has a low residual potential in an initial stage, is inhibited from increasing in residual potential, is prevented from decreasing in charge potential, and undergoes little fatigue deterioration even upon repeated use. The invention relates to a photoreceptor for electrophotography which has a photosensitive layer containing a cyclic phenol sulfide represented by the following general formula (1): | 04-29-2010 |
20100090588 | COMPOUND HAVING TRIAZINE RING STRUCTURE SUBSTITUTED WITH PYRIDYL GROUP AND ORGANIC ELECTROLUMINESCENT DEVICE - The present invention is to provide an organic compound having excellent characteristics as a material for an organic EL device having a high efficiency and a high durability, and to provide an organic EL device having a high efficiency and a high durability using the compound. The invention relates to a compound having a triazine ring structure having pyridyl groups attached thereto, which is represented by the general formula (1); and to an organic electroluminescent device comprising a pair of electrodes and at least one organic layer interposed between the electrodes, wherein the compound is used as a constituent material of at least one of the organic layer(s): | 04-15-2010 |
20100066244 | COMPOUND HAVING OXADIAZOLE RING STRUCTURE SUBSTITUTED WITH PYRIDYL GROUP AND ORGANIC ELECTROLUMINESCENCE DEVICE - The present invention relates to a compound having an oxadiazole ring structure having a substituted pyridyl group connected thereto, represented by the following general formula (1). | 03-18-2010 |
20100016541 | PROCESS FOR PRODUCING MEK-MODIFIED RESORCIN/FORMALIN RESIN PARALLELLY CARRYING OUT RECOVERY AND REUSE OF SPECIFIED RAW MATERIAL - Recovery and reuse method of the specific raw materials (MEK, methanol and calcium chloride) used in the production of an MEK-modified resorcinol-formalin resin is provided. Furthermore, it is an object to stabilize quality by controlling a calcium chloride concentration in the MEK-modified resin to 100 ppm or less by partially improving the production steps. In a water solvent, resorcinol, a recovered calcium chloride aqueous solution, and a recovered MEK are added and stirred to form a two-phase system, and after adding a hydrochloric acid catalyst, formalin is added dropwise to the reaction system to allow a liquid-liquid heterogeneous reaction to proceed. It is allowed to stand to separate into two layers, and after removing an aqueous layer ( | 01-21-2010 |
20100015542 | P-TERPHENYL COMPOUND AND PHOTOSENSITIVE BODY FOR ELECTROPHOTOGRAPHY USING SUCH COMPOUND - The present invention provides p-terphenyl compounds represented by the following general formula (1) and (2): | 01-21-2010 |
20100015444 | CARBON FIBROUS STRUCTURE - A three dimensional network of carbon fibrous structure includes a granular part formed by thermal decomposition of carbon in peripheral directions of a catalyst; and a plurality of carbon fibers each having an outside diameter of 15-100 nm and bound to the granular part and extending outwardly from the granular part, wherein an outside diameter of the granular part is larger than an outside diameter of each carbon fiber, and wherein the plurality of carbon fibers are fused together at the granular part during the formation of the carbon fibrous structure. The granular part may look like a knot of the plurality of carbon fibers. The carbon fibers may be tubular carbon fibers that are bound to the granular part, but are not entangled with each other. | 01-21-2010 |
20090278442 | ARYLAMINE COMPOUND AND ORGANIC ELECTROLUMINESCENCE DEVICE - Objects of the invention are to provide a compound of a single molecular species having excellent hole injection/transport property suitable for highly efficient and highly durable organic EL device and excellent amorphousness, and provide a highly efficient and highly durable organic EL device using the compound. This invention relates to an arylamine compound having a molecular weight of 1,500 to 6,000 represented by the following general formula ( | 11-12-2009 |
20090275783 | METHODS FOR PRODUCING OXIDIZED CYCLIC PHENOL SULFIDES - A method for producing an oxidized cyclic phenol sulfide which comprises the step of oxidizing a cyclic phenol sulfide of the following formula (1) as a raw material: | 11-05-2009 |
20090274611 | CARBON FIBROUS STRUCTURE - A method for forming a carbon fibrous structure having a granular part, to which a plurality of carbon fibers are bound, includes heating a mixture of a carbon source and a catalyst at a temperature between 800 and 1300° C. to produce a first intermediate, and heating the first intermediate to remove hydrocarbons, at a temperature between 800 and 1200° C. to produce a first product. The method further includes heating the first product at a temperature between 2400 and 3000° C. to produce a final product. The carbon source includes at least two compounds having different decomposition temperatures or a compound that can produce, when heated at a temperature between 800 and 1300° C., at least two components having different decomposition temperatures. The catalyst may include an iron-containing catalyst, which may be introduced into a reaction chamber in a gaseous state, without being deposited on a substrate. | 11-05-2009 |
20090264661 | METHODS FOR PRODUCING CYCLIC PHENOL SULFIDES - The object of the present invention is, in methods for producing cyclic phenol sulfides, to provide methods for producing a number of more macrocyclic products, which comprise the steps of producing a mixture of cyclic phenol sulfides from an inexpensive raw material in one step without inducing the reduction in yield of a cyclic quatromer; and easily separating and purifying a single component from the mixture of cyclic phenol sulfides. | 10-22-2009 |
20090239169 | OXIDIZED MIXED CYCLIC PHENOL SULFIDES, AND CHARGE CONTROL AGENTS AND TONERS USING THE SAME - The present invention discloses an oxidized mixed cyclic phenol sulfide which is a mixture of the oxidized cyclic phenol sulfide wherein m is 8 and the oxidized cyclic phenol sulfide wherein m is an integer other than 8, the oxidized cyclic phenol sulfide being represented by the following formula (1): | 09-24-2009 |
20090230849 | COMPOUND HAVING OXADIAZOLE RING STRUCTURE BONDED WITH AROMATIC HETEROCYCLIC RING AND ORGANIC ELECTROLUMINESCENT DEVICE - An object of the invention is to provide an organic compound having excellent characteristics as a material for highly efficient and highly durable organic EL devices, and also to provide a highly efficient and highly durable organic EL device. This invention relates to a compound represented by the general formula (1) having an oxadiazole ring structure bonded with an aromatic heterocycle, and to an organic electroluminescence device containing the compound: | 09-17-2009 |
20090108750 | COMPOUND HAVING THIADIAZOLE RING STRUCTURE SUBSTITUTED WITH PYRIDYL GROUP AND ORGANIC ELECTROLUMINESCENT DEVICE - An object of the present invention is to provide an organic compound having excellent characteristics, which is excellent in electron injection/transport performance, has hole blocking property and is high in stability in a thin film state, as a material for an organic EL device having high efficiency and high durability, and further to provide an organic EL device having high efficiency and high durability using this compound. The invention relates to a compound represented by general formula (1), which has a thiadiazole ring structure substituted with a substituted pyridyl group, and to an organic EL device having a pair of electrodes and at least one organic layer interposed therebetween, wherein the compound is contained as a constituent material of at least one of the organic layer(s). | 04-30-2009 |
20090104552 | PHOTORECEPTOR FOR ELECTROPHOTOGRAPHY - An object of the present invention is to provide an electrophotographic photoreceptor which is not impaired in electrophotographic properties such as charge potential and residual potential and which is also excellent in repetition stability. The invention relates to an electrophotographic photoreceptor including a conductive support having thereon a photosensitive layer containing a zirconium compound represented by the following general formula (1): | 04-23-2009 |
20090102361 | COMPOUND HAVING TRIAZOLE RING STRUCTURE SUBSTITUTED WITH PYRIDYL GROUP AND ORGANIC ELECTROLUMINESCENT DEVICE - An object of the invention is to provide an organic compound having excellent electron transport property and hole blocking property as a material for a highly efficient organic EL device, and also provide a highly efficient organic EL device using the compound. This invention relates to a compound having a triazole ring structure to which a substituted pyridyl group is bonded, represented by the following general formula (1), and to an organic electroluminescence device comprising the compound: | 04-23-2009 |
20090088575 | Process For Producing N,N'-Carbonyldiimidazole - The present invention provides a process for producing N,N′-carbonyldiimidazole, comprising: reacting phosgene, diphosgene, or triphosgene with imidazole in an inert solvent to produce N,N′-carbonyldiimidazole; to imidazole hydrochloride yielded as a by-product in the above step, adding a gaseous or liquid basic compound represented by the below-shown general formula (1) in an inert solvent to conduct neutralization reaction; and circulating the imidazole thus generated to use it as a starting material for N,N′-carbonyldiimidazole production. | 04-02-2009 |
20090053633 | P-TERPHENYL COMPOUND MIXTURE AND ELECTROPHOTOGRAPHIC PHOTORECEPTORS MADE BY USING THE SAME - An object of the invention is to provide: a p-terphenyl compound mixture useful as a charge-transporting agent which has improved solubility in organic solvents to thereby diminish a cracking phenomenon, which poses problems concerning photoreceptor characteristics, and can realize an electrophotographic photoreceptor having high sensitivity and high durability; and an electrophotographic photoreceptor employing the compound mixture. The invention relates to: a p-terphenyl compound mixture which includes two symmetric p-terphenyl compounds respectively represented by the following general formula (1) and general formula (2) and an asymmetric p-terphenyl compound represented by the following general formula (3) which has both a group of substituents of the compound represented by general formula (1) and a group of substituents of the compound represented by general formula (2); and an electrophotographic photoreceptor containing the compound mixture. | 02-26-2009 |
20090045726 | M-CARBAZOLYLPHENYL COMPOUNDS - An object of the present invention is to provide a host compound in an emission layer, which has a high excited triplet level and completely confines triplet excitons of an phosphorescence-emitting substance. The invention relates to a compound containing an m-carbazolylphenyl group, which is represented by the following general formula (1): | 02-19-2009 |
20090042120 | OXIDIZED MIXED CYCLIC PHENOL SULFIDES, AND CHARGE CONTROL AGENTS AND TONERS USING THE SAME - The present invention discloses an oxidized mixed cyclic phenol sulfide which is a mixture of the oxidized cyclic phenol sulfide wherein in is 8 and the oxidized cyclic phenol sulfide wherein m is an integer other than 8, the oxidized cyclic phenol sulfide being represented by the following formula (1): | 02-12-2009 |
20090035678 | MIXED CYCLIC PHENOL SULFIDES, AND CHARGE CONTROL AGENTS AND TONERS USING THE SAME - The present invention discloses a mixed cyclic phenol sulfide which is a mixture of the cyclic phenol sulfide wherein m is 8 and the cyclic phenol sulfide wherein m is an integer other than 8, the cyclic phenol sulfide being represented by the following formula (1): | 02-05-2009 |
20090011349 | Photoreceptor for Electrophotography - An object of the invention is to provide a photoreceptor for electrophotography which has a low residual potential in an initial stage, is inhibited from increasing in residual potential, is prevented from decreasing in charge potential, undergoes little fatigue deterioration even upon repeated use, and is less apt to pose a problem concerning toxicity or environmental pollution. The invention relates to a photoreceptor for electrophotography which has a photosensitive layer containing an aromatic hydroxycarboxylic acid metal complex represented by the following general formula (1): | 01-08-2009 |