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| Number | Title | Issue Date |
| 7601873 | Method of manufacturing 3,3′,4,4′-tetraaminobiphenyl An object of the present invention is to provide an efficient method of manufacturing 3,3′,4,4′-tetraaminobiphenyl with a smaller number of steps. The manufacturing method of 3,3′,4,4′-tetraaminobiphenyl includes reacting the amino groups of a 4-halo-o-pheny... | 10/13/2009 |
| 7563929 | Alkylation of N′-phenyl-N-alkylphenylenediamines in ionic liquid and N′-phenyl-N-alkyl(alkylphenylene) diamines produced thereby A process for alkylation of a N′-phenyl-N-alkyl-p-phenylenediamine of specified formula in an ionic liquid unexpectedly produces a N′-phenyl-N-alkyl(alkylphenylene)diamine of a second specified formula. The use of an inorganic liquid permits convenient separatio... | 07/21/2009 |
| 7488849 | Benzidine derivative, and light-emitting device and electric appliance using the benzidine derivative as the hole transporting material According to the present invention, a material that can be used as a hole transporting material is provided. Further, a material that is easily kept in a non-crystalline state and can be used as a hole transporting material is also provided. One embodiment of the pr... | 02/10/2009 |
| 7399537 | Organic electroluminescence device and phenylenediamine derivative The invention is to provide an organic EL device having a long life time that can reduce the driving voltage of the organic EL device, and to provide a material having a small ionization potential and exhibiting a large hole mobility by using as a layer or a zone. T... | 07/15/2008 |
| 7396844 | Benzamidine derivatives Benzamidine derivatives of the following formulae or analogs thereof, i.e., pharmaceutically acceptable salts thereof, are provided. These compounds or salts thereof have a blood-coagulation inhibiting effect based on an excellent effect of inhibiting the action of ... | 07/08/2008 |
| 7378447 | Muscarinic agonists The present invention relates to compounds of Formula (I): which are agonists of the M-1 muscarinic receptor ... | 05/27/2008 |
| 7365230 | Cross-linkable polymers and electronic devices made with such polymers The present invention relates to novel cross-linkable polymers and a wide variety of electronic devices containing at least one layer having the polymer. The compounds can function as monomers, and copolymers can be formed from such monomers, such copolymers compris... | 04/29/2008 |
| 7321066 | Method for producing aromatic diamine derivative The invention provides a method for efficiently producing an aromatic diamine derivative represented by formula (3) at high yield, the method including reacting an aromatic amide represented by formula (1) with an aromatic halide represented by formula (2): | 01/22/2008 |
| 7271406 | Electron transport agents for organic electronic devices Compounds and compositions are provided that can be used as electron transport agents in organic electronic devices such as organic electroluminescent devices. The compounds are non-polymeric and have an aromatic core conjugated to end capping groups. The aromatic c... | 09/18/2007 |
| 7250532 | Method for producing aromatic amino compound A method for producing aromatic amino compound (V): by synthesizing intermediate compound (IV): by the reaction of compound (I): H2N—R1 | 07/31/2007 |
| 7183437 | Method for preparing three types of benzidine compounds in a specific ratio A method for preparing three types of benzidine compounds in a specific ratio, the method uses two types of diphenylamine compounds and one type of biphenyldihalide compound in a specific ratio as reactants to mix with an organic solvent and an additive to synthesiz... | 02/27/2007 |
| 7148128 | Electronically addressable microencapsulated ink and display thereof We describe a system of electronically active inks which may include electronically addressable contrast media, conductors, insulators, resistors, semiconductive materials, magnetic materials, spin materials, piezoelectric materials, optoelectronic, thermoelectric o... | 12/12/2006 |
| 7109968 | Non-spherical cavity electrophoretic displays and methods and materials for making the same Disclosed herein are novel electrophoretic displays and materials useful in fabricating such displays. In particular, novel encapsulated displays are disclosed. Particles encapsulated therein are dispersed within a suspending, or electrophoretic, fluid. This fluid m... | 09/19/2006 |
| 7041994 | Radioprotective materials and utilization thereof The present invention provides radioprotective materials and products produced using the materials, the materials and products being easily usable for blocking effects of radiations, exposure to which occurs unconsciously in daily life or in a working environment. S... | 05/09/2006 |
| 7002728 | Electrophoretic particles, and processes for the production thereof Copper chromite particles can advantageously be used as black particles in electrophoretic media and displays. Preferably, the copper chromite particles are coated with a silica coating and a polymer coating. ... | 02/21/2006 |
| 6998210 | Electrophotographic photosensitive member, electrophotographic apparatus, and process cartridge The present invention relates to an electrophotographic photosensitive member comprising a surface layer excellent in adhesiveness and abrasion resistance, having a hardness and a toughness, and not degrading the charge transport property. One aspect of the present ... | 02/14/2006 |
| 6979749 | Catalytic process for the production of 3,3′, 4,4′-tetraminobiphenyl This invention relates to a process for the production of 3,3′,4,4′-tetraminobiphenyl (TAB) of formula (1) from non-carcinogenic raw materials, employing Suzuki type biaryl coupling as the key step. More particularly, it relates to a three steps process for the ... | 12/27/2005 |
| 6950220 | Electro-optic displays, and methods for driving same The invention relates to electro-optic displays and methods for driving such displays. The invention provides (i) electrochromic displays with solid charge transport layers; (ii) apparatus and methods for improving the contrast and reducing the cost of electrochromi... | 09/27/2005 |
| 6835854 | Process for the preparation of high quality 3,3′,4,4′-tetraminobiphenyl The present invention relates to a process for the preparation of pure high quality 3,3′, 4,4′-tetraminobiphenyl (TAB) in high yields. The present invention also discloses a process for the preparation of 3,3′,4,4′ tetraminobiphenyl (TAB) comprising a three ... | 12/28/2004 |
| 6713135 | Materials for inducing alignment in liquid crystals and liquid crystal displays The present invention provides novel polyimides, poly(amic acids) and poly(amide esters) thereof, and optical alignment layers derived therefrom, for inducing alignment of liquid crystals and liquid crystal displays. The novel compositions comprise side-chain polyme... | 03/30/2004 |
| 6552088 | Biphenyl derivatives Biphenyl substituted amides with activity as antagonists of the neurokinin 1 (NK-1, substance P) receptor.... | 04/22/2003 |
| 6407289 | Synthesis of N4, N4-diphenyl-N4,N4-di-m-tolyl-biphenyl-4,4'-diamine from an unsymmetrical amine Novel (4-halophenyl) biphenyl tolyl amines are described.... | 06/18/2002 |
| 6380432 | Materials for inducing alignment in liquid crystals and liquid crystal displays The present invention provides novel aromatic diamines useful in preparing polyimides for optical alignment layers in liquid crystal displays. The novel compositions comprise side-chains general formula I --L1 --D--L2 --Cf wher... | 04/30/2002 |
| 6355839 | Alkylation of diphenylamine with polyisobutylene oligomers A process for preparation of alkylated diphenylamine antioxidant which comprises alkylating diphenylamine with a polyisobutylene in the presence of a clay catalyst, wherein the polyisobutylene has an average molecular weight in the range of 120 to 600 and... | 03/12/2002 |
| 6043370 | Method for producing arylamine A method for the production of arylamine is described, which comprises allowing an aromatic amine to react with an aromatic halide in the presence of a copper-containing catalyst in a reaction solvent having an ionization potential of from 8.0 to 9.0 eV. ... | 03/28/2000 |
| 5773469 | Diaryl antimicrobial agents The invention relates to diaryl antimicrobial compounds of the general formula: ##STR1## where G, E L, J, q, m, X, Ar, W, p, n and A are as described herein, pharmaceutical compositions containing the compounds, methods for their production and ... | 06/30/1998 |
| 5710012 | Salt of 6-carboxy-3-methylbenzothiazolone hydrazone hydrate in colorimetric determination of hydrogen peroxide Water soluble salts of hydrazone compounds react quickly with aniline compounds in the presence of a peroxidase and hydrogen peroxide to provide a color which can be measured spectrophotometrically or visually, either in solution or when incorporated in a... | 01/20/1998 |
| 5707747 | Amine compound and electro-luminescence device comprising same The present invention provides novel amine compounds useful as electron-transporting materials to be incorporated in organic electro-luminescence devices. More particularly, the present invention provides an organic electro-luminescence device (organic EL... | 01/13/1998 |
| 5648539 | Low temperature arylamine processes A process for the preparation of arylamines which comprises the reaction of methyldiphenylamine and diiodobiphenyl in the presence of a ligated copper catalyst, and wherein the ligand is selected from the group consisting of monodentate tertiary amines an... | 07/15/1997 |
| 5639914 | Tetraaryl benzidines The present invention provides novel amine compounds useful as electron-transporting materials to be incorporated in organic electro-luminescence devices. More particularly, the present invention provides an organic electro-luminescence device (organic EL... | 06/17/1997 |
| 5610183 | Phenylglycine derivatives pharmaceutical compositions containing them and their use in therapy Compounds of Formula (I) and pharmaceutically acceptable salts thereof: ##STR1## wherein Q is optionally substituted phenyl or naphthyl; X and Y are each H, C1-6 alkyl, C2-6 alkenyl or X and Y are together .dbd.O; Z is O or S; R... | 03/11/1997 |
| 5599995 | Electrophotographic photoconductor comprising pyrenylamine derivative, the pyrenylamine derivative, intermediate for preparation thereof, and method for preparing the pyrenylamine derivative and the intermediate An electrophotographic photoconductor comprises an electroconductive substrate and a photoconductive layer formed thereon comprising as an effective component at least one pyrenylamine derivative of formula (I): ##STR1## wherein R1, R... | 02/04/1997 |
| 5550290 | Benzidine derivative and electrophotosensitive material using the same The present invention relates to a benzidine derivative represented by the general formula (1): ##STR1## wherein R1 to R6, m and n are as defined in the present specification. The benzidine derivative improves durability and hea... | 08/27/1996 |
| 5489711 | Synthetic lubricant antioxidant from monosubstituted diphenylamines An oligomer from diarylamines is disclosed which has desirable antioxidant properties in lubricating oils which contain synthetic ester lubricants. The oligomer is desirable for use at higher temperatures where it has less volatility than simple diarylami... | 02/06/1996 |
| 5482822 | Infrared-absorptive compound and optical recording medium making use of the same An infrared-absorptive compound is disclosed which has the structure represented by the following formula (I) or (II) ##STR1## Also, an optical recording medium having a recording layer containing the infrared-absorptive compound is disclosed.... | 01/09/1996 |
| 5476968 | N,N'-bis(p-hydroxymethylphenyl)benzidine compounds and method for preparing the same A N,N'-bis(p-hydroxymethylphenyl)benzidine compound having the following formula (I): ##STR1## wherein R1 represents a hydrogen atom, a methyl group or a methoxy group; R2 represents an alkyl group having one to four carbon atom... | 12/19/1995 |
| 5457108 | 5-oxo-dibenzo[a,d]cyclohepta-1,4-dienes The invention relates to substituted 5-oxo-di-benzo[a,d]cyclohepta-1,4-dienes of the formula (I) ##STR1## processes for their preparation and their use as retroviral agents.... | 10/10/1995 |
| 5453478 | Ortho-alkylated tolidines This invention relates to o-tolidines which have a tert-butyl substituent ortho to an amine group. These compositions are represented by the formula: ##STR1## where R1 =i-propyl, or t-butyl, and where R2 =hydrogen, i-propyl... | 09/26/1995 |
| 5403958 | Electrophotographic member Disclosed is an electrophotographic member containing as a charge transport material a fluorine-containing N,N,N',N'-tetraarylbenzidine derivative which is remarkably excellent in solubility in an organic solvent and/or a binder such as polycarbonate resi... | 04/04/1995 |
| 5362822 | Mesogenic adducts An adduct is prepared by reacting (A) a compound containing at least one epoxy group per molecule, with (B) a compound containing at least one epoxide reactive group per molecule selected from the group consisting of phenolic, thiol, secondary amine and c... | 11/08/1994 |
