| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 548439000 | The five-membered hetero ring shares ring carbons with two carbocyclic rings (e.g., tetrahydrocarbazoles, etc.) | 64 |
| 548440000 | The five-membered hetero ring shares ring carbons with two benzene rings (i.e., carbazoles) | 60 |
| 20080242871 | Organic compound, anthracene derivative, and light-emitting element, light-emitting device, and electronic device using anthracene derivative - Objects of the present invention are to provide novel anthracene derivatives and novel organic compounds; a light-emitting element that has high emission efficiency; a light-emitting element that is capable of emitting blue light with high luminous efficiency; a light-emitting element that is capable of operation for a long time; and a light-emitting device and an electronic device that have lower power consumption. An anthracene derivative represented by a general formula (1) and an organic compound represented by a general formula (17) are provided. A light-emitting element that has high emission efficiency can be obtained by use of the anthracene derivative represented by the general formula (1). Further, a light-emitting element that has a long life can be obtained by use of the anthracene derivative represented by the general formula (1). | 10-02-2008 |
| 20090105488 | TRIPTYCENE DERIVATIVES AND THEIR APPLICATION - The present invention discloses triptycene derivatives and their application as a host emitting material, an electron transport material, or a hole transport material in an organic electronic device. The triptycene derivative has the following general structure: | 04-23-2009 |
| 20090176992 | PROCESS FOR THE PREPARATION OF HIGHLY OPTICAL PURE CARVEDILOL - The present invention relates to a process for the efficient preparation of highly optical pure chiral carvedilol. According to the present invention, a chiral oxazolidin-2-one or oxazolidin-2-thione having formula 2, produced from the reaction of N-protected 2-(2-methoxyphenoxy)ethylamine with a chiral glycidol derivative is used as a key intermediate for the preparation of the chiral carvedilol. Specifically, the process for the preparation of the chiral carvedilol comprises a) reacting a compound of formula 2 with a halogenation agent, a sulfonation agent or a mitsunobu reagent to activate a hydroxyl group of the compound of formula 2, followed by nucleophilic substitution reaction with 9H-4-hydroxy carbazole to produce a compound of formula 7, and b) subjecting the obtained compound of formula 7 to a deprotection reaction in a presence of an inorganic base to produce the targeted chiral carvedilol. The process of the present invention can be accomplished in a mild condition. The process neither requires any extraordinary purification procedure, nor involves decrease of optical purity. Therefore, the process of the present invention provides highly optical pure chiral carvedilol in simple and efficient manner. | 07-09-2009 |
| 20100099890 | ANTHRACENE DERIVATIVE AND LIGHT-EMITTING DEVICES, ELECTRONIC DEVICES, AND LIGHTING DEVICE USING THE ANTHRACENE DERIVATIVE - An anthracene derivative is disclosed, and a light-emitting element, a light-emitting device, an electronic device, and a lighting device using the anthracene derivatives are demonstrated. The structure of the anthracene derivative is described in detail in the specification. The use of the anthracene derivative enables the production of a blue emissive light-emitting element having high emission efficiency, excellent purity of emission color, and a long lifetime, which contributes to the production of a high-performance light-emitting device, electronic device, and lighting device. | 04-22-2010 |
| 20100130750 | Benzocarbazole-intercalated layered double hydroxides composite luminescent material and its preparation method - The present invention discloses a benzocarbazole-intercalated layered double hydroxides (LDHs) composite luminescent material and its preparation method. The detailed procedure comprises preparing divalent and trivalent metal cation solution A and glycol solution B of sodium 2-hydroxy benzo[a]carbazole-3-carboxylate, mixing the solutions A and B to obtain solution C, slowly adding the prepared NaOH solution dropwise into the solution C, regulating pH of the resultant after dropwise addition to obtain slurry D, allowing the slurry D to react under water bath or microwave temperature-controlled heating condition, centrifuging and washing the obtained product, and drying in vacuum to obtain 2-hydroxy benzo[a]carbazole-3-carboxylate anion intercalated LDHs composite material. The method implements the immobilization of sodium 2-hydroxy benzo[a]carbazole-3-carboxylate, effectively improves thermal stability of the luminescent dye molecules, and reduces fluorescence quenching caused by aggregation of the dye molecules. | 05-27-2010 |
| 20100174095 | ORGANIC COMPOUND, SEMICONDUCTOR FILM ELECTRODE EMPLOYING THE ORGANIC COMPOUND, PHOTOELECTRIC CONVERSION ELEMENT EMPLOYING THE ORGANIC COMPOUND, AND PHOTOELECTROCHEMICAL SOLAR CELL EMPLOYING THE ORGANIC COMPOUND - The present invention provides: an organic compound increasing an open circuit voltage, and showing high photoelectric conversion efficiency; a semiconductor film electrode employing the organic compound as a dye; a photoelectric conversion element employing the semiconductor film electrode; and a photoelectrochemical solar cell employing the photoelectric conversion element. The organic compound is represented by the following general formula: | 07-08-2010 |
| 20110004003 | Compound, Photochromic Material, Electronic Material, Compound Producing Method, 2,3-BIS(N,N-BIS(P-ANISYL)4-Minophenylethynyl)Dimethylfumarate Producing Method and 2,3-BIS(N,N-BIS(P-ANISYL)4-Aminophenylethynyl)Dimethylmaleate Producing method - A novel high-performance material is provided. A certain aspect of the present invention lies in a 2,3-bis(N,N-bis(p-anisyl)4-aminophenylethynyl)dimethylfumarate producing method, characterized by illuminating light onto 2,3-bis(N,N-bis(p-anisyl)4-aminophenylethynyl)dimethylmaleate. Also, a further certain aspect of the present invention lies in a 2,3-bis(N,N-bis(p-anisyl)4-aminophenylethynyl)dimethylmaleate producing method, characterized by illuminating light onto 2,3-bis(N,N-bis(p-anisyl)4-aminophenylethynyl)dimethylfumarate. According to this constitution, there can be obtained a high-performance material by a simple technique. | 01-06-2011 |
| 20110172441 | METHOD FOR SYNTHESIS OF ANTHRACENE DERIVATIVE - A method for synthesizing an anthracene derivative represented by a general formula (G1) is provided, in which a 9-arylanthracene derivative having an active site at a 10-position is subjected to coupling with a carbazole-3-yl-aryl derivative having an active site in an aryl group with the use of a metal or a metal compound,
| 07-14-2011 |
| 20120071668 | Carbazole Derivative, Light-Emitting Element Material and Organic Semiconductor Material - An object is to provide a novel carbazole derivative that has an excellent carrier-transport property and can be suitably used for a transport layer or as a host material of a light-emitting element. Another object is to provide an organic semiconductor material and a light-emitting element material each using the carbazole derivative. As the carbazole derivative that can achieve the above objects, a carbazole derivative in which a carbazolyl group whose either 2- or 3-position of carbazole is substituted by the 4-position of a dibenzothiophene skeleton or a dibenzofuran skeleton is bonded to aromatic hydrocarbon that has 14 to 70 carbon atoms and includes a condensed tricyclic ring, a condensed tetracyclic ring, a condensed pentacyclic ring, a condensed hexacyclic ring, or a condensed heptacyclic ring has been able to be synthesized. | 03-22-2012 |
| 20120203010 | CARBAZOLE COMPOUND AND USE THEREOF - A carbazole compound represented by the following formula: | 08-09-2012 |
| 20120289708 | Carbazole Compound, Light-Emitting Element Material, and Organic Semiconductor Material - A novel carbazole compound that can be used for a transport layer, a host material, or a light-emitting material in a light-emitting element. In the carbazole compound, two carbazole skeletons each include carbazole, the 3-position of which is bonded to the 4-position of a dibenzofuran skeleton or a dibenzothiophene skeleton and these two carbazole skeletons are linked via benzene or biphenyl. The carbazole compound has an excellent carrier-transport property and a wide energy gap and can be suitably used for a material in a light-emitting element or for an organic semiconductor material. | 11-15-2012 |
| 20120309984 | ORGANIC COMPOUND, ANTHRACENE DERIVATIVE, AND LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, AND ELECTRONIC DEVICE USING ANTHRACENE DERIVATIVE - Objects of the present invention are to provide novel anthracene derivatives and novel organic compounds; a light-emitting element that has high emission efficiency; a light-emitting element that is capable of emitting blue light with high luminous efficiency; a light-emitting element that is capable of operation for a long time; and a light-emitting device and an electronic device that have lower power consumption. An anthracene derivative represented by a general formula (1) and an organic compound represented by a general formula (17) are provided. A light-emitting element that has high emission efficiency can be obtained by use of the anthracene derivative represented by the general formula (1). Further, a light-emitting element that has a long life can be obtained by use of the anthracene derivative represented by the general formula (1). | 12-06-2012 |
| 20130144069 | ORGANIC DYES AND PHOTOELECTRIC CONVERSION DEVICES - Organic dyes and photoelectric conversion devices are provided. The Organic dye has the structure represented by formula (I) | 06-06-2013 |
| 20130261314 | DYES AND PHOTOELECTRIC CONVERSION DEVICES CONTAINING THE SAME - Disclosed is a dye, having a chemical formula: | 10-03-2013 |
| 20130324742 | CARBAZOLE DERIVATIVE, LIGHT-EMITTING ELEMENT MATERIAL, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE - A carbazole derivative represented by the general formula (1) is provided. In the formula, Ar | 12-05-2013 |
| 20130331582 | N-CYCLOALKYLALKYL TRISCARBAZOLES - The present invention relates to a novel triscarbazole compound comprising cyclo- or polycycloalkyl or aralkyl substituent, which can be represented by Formula (I). | 12-12-2013 |
| 20140005411 | LOW BANDGAP DICYANOVINYL AND TRICYANOVINYL OLIGOTHIOPHENES FOR SOLAR CELL APPLICATIONS | 01-02-2014 |
| 20140155623 | HOLE TRANSPORT MATERIAL FOR ORGANIC ELECTROLUMINESCENCE DEVICE AND ORGANIC ELECTROLUMINESCENCE DEVICE USING THE SAME - A hole transport material for the organic electroluminescence device, the hole transport material being represented by the following Formula 1, | 06-05-2014 |
| 20140155624 | HOLE TRANSPORT MATERIAL FOR ORGANIC ELECTROLUMINESCENCE DEVICE AND ORGANIC ELECTROLUMINESCENCE DEVICE USING THE SAME - A hole transport material for the organic electroluminescence device, the hole transport material being represented by the following Formula 1, | 06-05-2014 |
| 20140330025 | MONOAMINE COMPOUND, CHARGE TRANSPORT MATERIAL, COMPOSITION FOR CHARGE TRANSPORT FILM, ORGANIC ELECTROLUMINESCENT ELEMENT, ORGANIC EL DISPLAY, AND ORGANIC EL LIGHTING - A monoamine compound characterized by being represented by the following general formula (1). | 11-06-2014 |
| 20140336392 | NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME - The present invention relates to a novel organic electroluminescent compound and an organic electroluminescent device containing the same. Using the organic electroluminescent compounds of the present invention, it is possible to manufacture an OLED device with a long operating lifespan and high luminous efficiency. In addition, the compounds can improve the power efficiency of the device and reduce overall power consumption. | 11-13-2014 |
| 20150065730 | SPIROBIFLUORENE COMPOUNDS FOR ORGANIC ELECTROLUMINESCENT DEVICES - The present invention relates to compounds of the formula (1) which are suitable for use in electronic devices, in particular organic electroluminescent devices, and to electronic devices which comprise these compounds. | 03-05-2015 |
| 20150105564 | ORGANIC LIGHT-EMITTING DEVICE, AND LIGHT-EMITTING MATERIAL AND COMPOUND USED THEREFOR - An organic light-emitting device having a light-emitting layer containing a compound represented by the general formula below has a high light emission efficiency. In the general formula, at least one of R | 04-16-2015 |
| 20150141664 | LOW BANDGAP DICYANOVINYL AND TRICYANOVINYL OLIGOTHIOPHENES FOR SOLAR CELL APPLICATIONS - The invention relates to solution-processable, p-type, low-optical gap oligothiophene compounds for use in solar cell application, comprising at least one thiophene-containing group, at least one electron-withdrawing dicyanovinyl or tricyanovinyl group, and at least one electron-donating diphenylaminofluorenyl or N-alkylcarbazole group. | 05-21-2015 |
| 20150336926 | FLUORINATION OF ARYL COMPOUNDS - The invention provides compositions and methods of using the compositions in fluorinating aryl precursors containing a leaving group replaceable by a fluorine atom. The compositions include a metal ion source, a electrophilic fluorine source, a base, and a compound, which is an aryl precursor of the aryl fluoride, and which has a leaving group replaceable by the fluorine atom. Exemplary methods of the invention make use of such compositions and methods to prepare an aryl fluoride compound. In an exemplary embodiment, the electrophilic fluorine source is a source of | 11-26-2015 |
| 20160093810 | MATERIAL FOR ORGANIC ELECTROLUMINESCENT DEVICE AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME - A material for an organic electroluminescent device and an organic electroluminescent device including the same, the material including a monoamine compound represented by the following Formula 1: | 03-31-2016 |
| 20160184733 | METHOD FOR SEPARATION OF A MOLECULAR SPECIES BY SUBLIMATION - The present invention provides a method for separation of a targeted molecular species with high purity from a mixture, by controlling temperatures of sublimation unit calculated by a specific formula. | 06-30-2016 |
| 20160197284 | CARBAZOLE DERIVATIVE, LIGHT-EMITTING ELEMENT MATERIAL, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE | 07-07-2016 |
| 20160254450 | BLUE LUMINESCENT COMPOUNDS | 09-01-2016 |
| 20160380211 | Carbazole Derivative, Light-Emitting Element Material and Organic Semiconductor Material - An object is to provide a novel carbazole derivative that has an excellent carrier-transport property and can be suitably used for a transport layer or as a host material of a light-emitting element. Another object is to provide an organic semiconductor material and a light-emitting element material each using the carbazole derivative. As the carbazole derivative that can achieve the above objects, a carbazole derivative in which a carbazolyl group whose either 2- or 3-position of carbazole is substituted by the 4-position of a dibenzothiophene skeleton or a dibenzofuran skeleton is bonded to aromatic hydrocarbon that has 14 to 70 carbon atoms and includes a condensed tricyclic ring, a condensed tetracyclic ring, a condensed pentacyclic ring, a condensed hexacyclic ring, or a condensed heptacyclic ring has been able to be synthesized. | 12-29-2016 |
| 20180026205 | COMPOSITION FOR ORGANIC OPTOELECTRONIC DEVICE AND ORGANIC OPTOELECTRONIC DEVICE AND DISPLAY DEVICE | 01-25-2018 |
| 548441000 | Having -C(=X)-, wherein X is chalcogen, bonded directly to the tricyclo ring system (e.g., carbazole-3-carboxylic acid, etc.) | 1 |
| 20160376226 | Bisoxime Ester Photoinitiator and Preparation Method and Use Thereof - A bisoxime ester photoinitiator as represented by general formula (I). By introducing a bisoxime ester group and a cycloalkylalkyl group into the chemical structure, this photoinitiator not only has excellent performance in aspects of storage stability, photosensitivity, developability, pattern integrity, and the like, but also exhibits obviously improved photosensitivity and thermal stability compared to similar photoinitiators. | 12-29-2016 |
| 548442000 | One of the benzene rings and an additional carbocyclic ring bonded directly to the same acyclic nitrogen | 5 |
| 20100145067 | NOVEL CARBAZOLES DERIVATIVE AND USE THEREOF - The invention discloses a novel carbazole derivative which has at least two carbazole structures in the molecule, can form a stable amorphous film by itself at normal temperature or higher, has a high glass transition temperature, and can be suitably used as an organo-electronic functional material. The following compound having the formula | 06-10-2010 |
| 20120302762 | Carbazole Compound, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device - A carbazole compound represented by General Formula (G1) is provided. | 11-29-2012 |
| 20140213798 | SPIROFLUORENE DERIVATIVE, MATERIAL FOR LIGHT-EMITTING ELEMENT, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, AND ELECTRONIC DEVICE - It is an object of the present invention to provide a material having a high Tg and a wide energy gap. The present invention provides a spirofluorene derivative represented by General Formula 1. (In the formula, R | 07-31-2014 |
| 20140364626 | Anthracene Derivative, Light Emitting Element Using the Same, and Light Emitting Device Using the Same - It is an object of the present invention to provide a light emitting element, which is resistant to repetition of an oxidation reaction. It is another object of the invention to provide a light emitting element, which is resistant to repetition of a reduction reaction. An anthracene derivative is represented by a general formula (1). In the general formula (1), R1 represents hydrogen or an alkyl group having 1 to 4 carbon atoms, R2 represents any one of hydrogen, an alkyl group having 1 to 4 carbon atoms and an aryl group having 6 to 12 carbon atoms, R3 represents any one of hydrogen, an alkyl group having 1 to 4 carbon atoms, and an aryl group having 6 to 12 carbon atoms, Ph1 represents a phenyl group, and X1 represents an arylene group having 6 to 15 carbon atoms. | 12-11-2014 |
| 20160197278 | Anthracene Derivative, and Light-Emitting Element, Light-Emitting Device, Electronic Device Using Anthracene Derivative | 07-07-2016 |
| 548444000 | Chalcogen or nitrogen attached indirectly to the tricyclo ring system by acyclic nonionic bonding | 14 |
| 20080214833 | Process For Manufacture of Racemic Carvedilol - The invention relates to a novel process for the manufacture of Carvedilol of high HPLC purity (>99.5%) having individual impurity less than 0.1%. The product is isolated from reaction mass as a salt with suitable organic acids which on further purification is converted into the free base i.e., Carvedilol. | 09-04-2008 |
| 20080234492 | Process for the Preparation of Carvedilol - A process for the preparation of carvedilol of formula (I) (I) either in enantiomeric substantially pure form, or as an enantiomeric mixture, optionally as a pharmaceutically acceptable salt thereof, which process comprises reacting 2,3-eopxypropoxy carbazole of formula (II) (II) or the R or S enantiomer thereof, with N-[2-(2-methoxy-phenoxy)ethyl]-benzylamine of formula (V) (V) to yield benzyl carvedilol of formula (VI) (VI) which is debenzylated by catalytic hydrogenation to yield carvedilol of formula (I), either in enantiomeric substantially pure form, or as an enantiomeric mixture, and if desired reacting the thus formed carvedilol of formula (I) with an inorganic or organic acid to yield a pharmaceutically acceptable salt thereof, and/or, if desired, separating the enantiomers. The above process is characterised in that reaction of said 2,3-epoxypropoxy carbazole of formula (II) with said N-[2-(2-methoxy-phenoxy)ethyl]-benzylamine of formula (V) is carried out in water as the reaction medium. The present invention further provides carvedilol of formula (I) prepared by a process as described above, and pharmaceutical compositions containing the same and therapeutic uses thereof. | 09-25-2008 |
| 20080242872 | AMORPHOUS CARVEDILOL PHOSPHATE AND METHOD OF MANUFACTURING THEREOF - The subject of the invention is amorphous carvedilol phosphate and a method of manufacturing amorphous carvedilol phosphate comprising removing solvent from carvedilol phosphate solution by means of spray drying. | 10-02-2008 |
| 20080287688 | Efficient Process For Production Of Carvedilol Phosphate - A novel cost effective process for the synthesis of phosphate salts of 1-(9H-carbazol-4yloxy)-3-[[2-(2-methoxyphenoxy)ethyl] amino]-propan-2-ol, (carvedilol phosphate) of formula (II) with high yields and purity is disclosed. More particularly, the invention discloses a process for preparation of crystalline phosphate salts of carvedilol using various phosphate forming reagents such as phosphorous pentoxide, polyphosphoric acid, dipotassium hydrogen phosphate, ammonium dihydrogen ortho phosphate, and sodium dihydrogen ortho phosphate in solvents selected from Acetonitrile, acetone and tetrahydrofuran. The solvents used to prepare solvates of carvedilol dihydrogen phosphate are methanol, ethanol and isopropyl alcohol. | 11-20-2008 |
| 20080312453 | Novel Carbazole Compound, and Polymer Thereof - The present invention provides a carbazole compound represented by the following formula (I): | 12-18-2008 |
| 20080312454 | Aromatic amine compound, and light emitting element, light emitting device, and electronic device using aromatic amine compound - An object is to provide an aromatic amine compound with excellent heat resistance. Another object is to provide a light emitting element, a light emitting device, and an electronic device with excellent heat resistance. An aromatic amine compound represented by General Formula (1) is provided. The aromatic amine compound represented by General Formula (1) has a high glass transition point and excellent heat resistance. By using the aromatic amine compound represented by General Formula (1) for a light emitting element, a light emitting device, and an electronic device, a light emitting element, a light emitting device, and an electronic device with excellent heat resistance can be obtained. | 12-18-2008 |
| 20090076283 | Method of crystallizing carvedilol phosphate and the product thereof - The present invention provides for a crystalline polymorph of Carvedilol phosphate salt and a process for making the same. | 03-19-2009 |
| 20090259051 | CARVEDILOL PHOSPHATE SESQUIHYDRATE - The present invention relates a novel crystalline 1-(Carbazol-4-yloxy-3-[[2-(o-methoxyphenoxy) ethyl]amino]-2-propanol phosphate sesquihydrate (Carvedilol dihydrogenphosphate sesquihydrate), methods of preparing the sesquihydrate by adding phosphoric acid to a suspension of Carvedilol in water, water miscible solvents or a mixture of water and water miscible organic solvent followed by isolating the product directly or by adding solvent. | 10-15-2009 |
| 20090286991 | PROCESS FOR THE PREPARATION OF CARVEDILOL FORM II - A cost-effective, industrially feasible process for the manufacture of crystalline Carvedilol Form-II using novel Carvedilol salts comprises the steps of reacting 4-(2,3-epoxy propoxy)carbazole (II) with 2-(2-methoxy phenoxy)ethyl amine (III) followed by acidification with mineral acid in presence of an organic solvent to yield acid addition salts, treatment of the said salts with base(s) in presence of organic solvent(s), water and isolation from the organic solvent(s) followed by crystallization from ethyl acetate. | 11-19-2009 |
| 20100145068 | Dendritic Photoactive Compound Comprising Oxime Ester And Method For Preparing The Same - The present invention relates to a dendritic photoactive compound that comprises oxime ester and a method for producing the same. Since the compound according to the present invention comprises two or more oxime ester groups and chromophores in one molecule at the same time, the solubility in respects to the organic solvent and the efficiency for producing a radical by absorbing ultraviolet rays are excellent. In addition, it can act as an effective initiator in respects to the photopolymerization of the unsaturated group, in particular, the acryl compound | 06-10-2010 |
| 20110124879 | STABLE AMORPHOUS FORM OF CARVEDILOL DIHYDROGEN PHOSPHATE WITH STABILIZER - The present invention provides a novel stable amorphous form of carvedilol dihydrogen phosphate and the process for its preparation that involves reaction of carvedilol base with ortho phosphoric acid in the presence of stabilizer in a suitable solvent or mixture of solvents followed by concentration and isolation. An alternate process for preparation of amorphous form of carvedilol dihydrogen phosphate involves addition of stabiliser to the solution of stable amorphous or crystalline carvedilol dihydrogen phosphate in a suitable solvent or mixture of solvents followed by concentration and isolation. The novel stable amorphous form of carvedilol dihydrogen phosphate is highly stable. | 05-26-2011 |
| 20120149915 | METHOD FOR SYNTHESIS OF N-ALKYL CARBAZOLE AND DERIRATIVES THEREOF - Disclosed is a process for the preparation of N-alkyl carbazole. Said process comprises: a) chlorinating cyclohexanone to form 2-chlorocyclohexanone; b) reacting 2-chlorocyclohexanone with N-ethyl aniline to form 2-(N-ethyl anilino) cyclohexanone; c) cyclizing 2-(N-ethyl anilino) cyclohexanone by refluxing with simultaneous water removal to obtain 9-ethyltetrahydrocarbazole; d) treating 9-ethyl-tetrahydrocarbazole with concentrated hydrochloric acid followed by water wash for removing N-ethyl aniline; e) dehydrogenating 9-ethyltetrahydrocarbazole by heating 9-ethyltetrahydrocarbazole in a solvent, in presence of a catalyst to obtain N-alkyl carbazole. | 06-14-2012 |
| 20160376225 | NITRO-CONTAINING BISOXIME ESTER PHOTOINITIATOR AND PREPARATION METHOD AND USE THEREOF - This present invention discloses a nitro-containing bisoxime ester photoinitiator having a structure represented by general formula (I). This photoinitiator has excellent application performances in terms of storage stability, photosensitivity, developability, pattern integrity, etc., and it has good adaptability to single-wavelength UV-LED light sources and exhibits a photosensitive property, which is obviously superior to those of existing photoinitiators, under the irradiation of UV-LEDs. | 12-29-2016 |
| 20180026207 | Organic Compound, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device | 01-25-2018 |
| 548445000 | The tricyclo ring system is unsubstituted or is hydrocarbyl substituted only (e.g., N-vinyl carbazole, etc.) | 9 |
| 20090240062 | COMPOUND DERIVED FROM CYCLOPENTADIENONE, PREPARATION METHOD THEREOF AND EL ELEMENT USING THE SAME - Disclosed are a compound represented by the following formula (1), which is derived from cyclopentadienone and can be used as a core material for an organic electroluminescence element or other optical devices, and preparation method thereof, and an EL element using the same. | 09-24-2009 |
| 20100069647 | Carbazole Derivative, Light-Emitting Element Material, Light-Emitting Element, and Light-Emitting Device - An object is to provide a carbazole derivative which has a wide band gap and with which excellent blue color purity is obtained. In addition, another object is to provide highly reliable light-emitting elements, light-emitting devices, lighting devices, and electronic devices in which the carbazole derivative is used. Carbazole derivatives represented by the general formulas (1), (P1), and (M1) are provided. Further, light-emitting elements, light-emitting devices, and electronic devices which are formed using the carbazole derivative represented any of the general formulas (1), (P1), and (M1) are provided. | 03-18-2010 |
| 20120077987 | ORGANIC COMPOUND, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE - A novel substance with which an increase in life and emission efficiency of a light-emitting element can be achieved is provided. A carbazole compound having a structure represented by General Formula (G1) is provided. Note that a substituent which makes the HOMO level and the LUMO level of a compound in which a bond of the substituent is substituted with hydrogen deep and shallow, respectively is used as each of substituents in General Formula (G1) (R | 03-29-2012 |
| 20140066633 | ORGANIC COMPOUND, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE - A novel substance with which an increase in life and emission efficiency of a light-emitting element can be achieved is provided. A carbazole compound having a structure represented by General Formula (G1) is provided. Note that a substituent which makes the HOMO level and the LUMO level of a compound in which a bond of the substituent is substituted with hydrogen deep and shallow, respectively is used as each of substituents in General Formula (G1) (R | 03-06-2014 |
| 20160115127 | Electro-fluorescent emitter for ultra-violet OLED - The present invention demonstrates a newly designed and synthesized carbazole scaffold based electro-fluorescent emitter, 9-butyl-2,7-(2-(4-methoxyphenyl)ethynyl)-9H-carbazole (Cz(APhOMe) | 04-28-2016 |
| 548446000 | Carbazole per se or alkyl substituted only | 4 |
| 20090043109 | ASYMMETRIC ONE- AND TWO-PHOTON FLUOROPHORES FOR SIMULTANEOUS DETECTION OF MULTIPLE ANALYTES USING A COMMON EXCITATION SOURCE - A family of one- and two-photon dyes that have overlapping fluorescence excitation maxima between 365 nm and 425 nm and that are specifically functionalized for coupling to biomolecules. The dyes have defined Stokes shifts such that they produce a continuum of emission wavelengths. The dyes are asymmetrical bis stilbenes. The asymmetry of these dyes facilitates functionalization of the dyes with carboxyl, thiol, aldehyde-reactive or amine-reactive groups, which in turn facilitates coupling with macromolecules. Furthermore, the dyes of the present invention are photostable and have high quantum yields (fluorescence intensity). | 02-12-2009 |
| 20090253916 | Anthracene Derivative, Light-Emitting Material, Material for Light-Emitting Element, Composition for Coating, Light-Emitting Element, Light-Emitting Device, and Electronic Appliance - A novel anthracene derivative with a large energy gap is provided. An anthracene derivative represented by General Formula (G1) below is provided. In the formula, Ar | 10-08-2009 |
| 20130253206 | ANTHRACENE DERIVATIVE, AND LIGHT-EMITTING MATERIAL, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, AND ELECTRONIC DEVICE USING THE SAME - Novel anthracene derivatives, novel materials capable of blue light emission with high color purity, and a light-emitting element, a light-emitting device, and an electronic device using any of the novel materials. The anthracene derivative represented by general formula (1) is provided. With the anthracene derivative, a light-emitting element with high emission efficiency can be provided. With the anthracene derivative, a light-emitting element emitting blue light with high color purity can be provided. | 09-26-2013 |
| 20160028013 | CARRIER TRANSPORT MATERIAL - The present invention provides a carrier transport material formed by completing a reaction process of at least one aromatic compound and at least one polycyclic aromatic hydrocarbons (PAHs), wherein a cross linking reaction can be activated in the molecular compound through heating or ultraviolet irradiation because the molecular compound has at least one cross-linkable functional group. Therefore, when the carrier transport material is applied in an OLED, the carrier transport material would not be dissolved by the solvent included in the next coated material because the carrier transport material has been cured after the cross linking reaction is carried out. Moreover, because the carrier transport material would simultaneously perform an electron confining functionality when being used as a hole transport layer, the device efficiency of the OLED having the carrier transport material is obviously enhanced during the high-brightness operation especially. | 01-28-2016 |
| 548448000 | Having -C(=X)-, wherein X is chalcogen, bonded directly to ring carbon of the tricyclo ring system (e.g., 1, 2, 3, 4-tetrahydrocarbazole -3 carboxylic acid, etc.) | 4 |
| 20130261315 | SOLID PHASE EXTRACTION METHOD - The present invention provides a method to prepare an | 10-03-2013 |
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