Patent application number | Description | Published |
20080220356 | Electrophotographic photoreceptor, process cartridge and image-forming apparatus - An electrophotographic photoreceptor including a photosensitive layer provided including a first functional layer including a compound represented by the following Formula (I). In Formula (I), F represents an n-valent organic group having hole transportation ability; R | 09-11-2008 |
20080254380 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor includes a conductive support and a photosensitive layer. The photosensitive layer is disposed on the conductive support, and includes a layer that includes, in the same layer, at least a charge generating material and a compound having a triple bond and a hydroxy group. | 10-16-2008 |
20080261135 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor comprising a conductive support and a photosensitive layer provided on or above the conductive support, the photosensitive layer having an outermost layer comprising a cured product of a composition comprising a curable resin, a surfactant containing a fluorine atom, and a charge transporting organic compound having a specific structure. | 10-23-2008 |
20090004583 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS, AND FILM FORMING COATING SOLUTION - According to the invention, there is provided an electrophotographic photoreceptor comprising a conductive substrate and a photosensitive layer provided on a surface of the conductive substrate, an outermost layer of the photosensitive layer containing a crosslinked product composed of a guanamine compound and at least one charge transporting material having at least one substituent selected from the group consisting of —OH, —OCH | 01-01-2009 |
20090238602 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor including a conductive substrate and a photosensitive layer provided on a surface of the conductive substrate, an outermost layer of the photosensitive layer containing a crosslinked product formed from at least one charge transporting material having at least one substituent selected from the group consisting of —OH, —OCH | 09-24-2009 |
20100151366 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - According to an aspect of the invention, an electrophotographic photoreceptor including a conductive substrate and a photosensitive layer provided on a surface of the conductive substrate is provided. In the electrophotographic photoreceptor, an outermost layer of the photosensitive layer containing a crosslinked product formed from at least one charge transporting material having at least one substituent selected from the group consisting of —OH, —OCH | 06-17-2010 |
20100167192 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - The invention provides an electrophotographic photoreceptor having at least a conductive substrate and a photosensitive layer formed on the conductive substrate wherein the outermost surface layer of the photoreceptor is composed of a cured material containing at least one compound represented by the formula (I) and a surfactant that contains, in the molecule thereof, at least one structure selected from (A) a structure that is obtained by polymerizing an acrylic monomer having a fluorine atom, (B) a structure having a carbon-carbon double bond and a fluorine atom, (C) an alkyleneoxide structure, and (D) a structure having a carbon-carbon triple bond and a hydroxy group. In formula (I), Q is an organic group having a valency of n and having hole transportability, R is a hydrogen atom or an alkyl group, L is a divalent organic group, n is 1 or more, and j is 0 or 1. | 07-01-2010 |
20100167193 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, MANUFACTURING METHOD OF ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESSING CARTRIDGE, AND IMAGE FORMING APPARATUS - The invention provides an electrophotographic photoreceptor having comprising at least an electrically conductive substrate and a photo-sensitive layer provided on the conductive substrate, the outermost layer is being a cured film of comprising a composition containing at least one compound (a) having a triphenylamine structure and four or more methacryloyl groups in one and the same molecule. | 07-01-2010 |
20100233601 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor has at least an electroconductive substrate, and a photosensitive layer formed on or above the electroconductive substrate, wherein an outermost layer of the photoreceptor is a cured membrane of a composition containing at least one compound (a) having in a single molecule thereof a charge transporting skeleton and a chain polymerizable functional group, and at least one thermopolymerizable or photopolymerizable silicone polymeric radical polymerization initiator (b). | 09-16-2010 |
20100248101 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor comprising:
| 09-30-2010 |
20110076605 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, METHOD FOR PRODUCING ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor includes an electroconductive substrate and a photosensitive layer formed thereon, the photosensitive layer including a sub-layer that constitutes an outermost surface of the photosensitive layer, the sub-layer including an organic solvent having a boiling point of from about 65° C. to about 250° C. in an amount of from about 5,000 ppm to about 50,000 ppm, and the sub-layer including a polymer of a charge transporting material having a polymerizable group. | 03-31-2011 |
20110195354 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS - The present invention provides an electrophotographic photoreceptor including a photosensitive layer on a conductive substrate, an outermost layer of the electrophotographic photoreceptor including a cured film of a composition which includes at least one charge transporting compound (a) having a charge transporting skeleton and at least two structural units represented by R—O—CO—CR′═CH—R″ in the same molecule, and at least one polycarbonate resin; a ratio (I | 08-11-2011 |
20110207039 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS, CURED FILM, AND ORGANIC ELECTROLUMINESCENT DEVICE - An electrophotographic photoreceptor is disclosed, in which an outermost surface layer of the electrophotographic photoreceptor is made of a cured film of a composition including a compound represented by the following Formula (M1) and a charge transporting material having a chain polymerizable functional group: | 08-25-2011 |
20110207041 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - The present invention provides an electrophotographic photoreceptor including at least an electroconductive substrate and a photosensitive layer provided on or above the electroconductive substrate, wherein an outermost layer of the electrophotographic photoreceptor is a layer composed of a cured film of a composition including at least one of compound having a chain-polymerizable functional group and a charge-transportable backbone in the molecule thereof, a polymerization initiator and a radical deactivator. | 08-25-2011 |
20110215303 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE IMAGE FORMING APPARATUS, AND CURED FILM - An electrophotographic photoreceptor includes a conductive substrate and a photosensitive layer provided on the conductive substrate, and an outermost surface layer of the electrophotographic photoreceptor includes a cured film of a composition containing a charge transporting material having a chain polymerizable functional group and at least one selected from a nitroso compound, a nitrone compound or a nitro compound. | 09-08-2011 |
20110229809 | IMAGE FORMING APPARATUS, AND PROCESSING CARTRIDGE - The present invention provides an image forming apparatus including: an electrophotographic photoreceptor; a charging unit; an electrostatic latent image forming unit that forms an electrostatic latent image; a developing unit that develops the electrostatic latent image formed at the electrophotographic photoreceptor by a developer to form a toner image, the developing unit storing the developer containing a toner having toner particles containing a crystalline resin and having a shape factor SF1 of from 100 to 150, a volume average particle diameter of from 3 to 6 μm, and fluorocarbon-based resin particles as an external additive; a transfer unit; and a cleaning unit that cleans the surface of the electrophotographic photoreceptor with a blade containing urethane rubber, the blade disposed applying a pressure to the electrophotographic photoreceptor surface of 0.20 mN/mm or more. | 09-22-2011 |
20110318676 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, METHOD FOR PREPARING THE SAME, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An electrophotographic photoconductor includes a conductive substrate and an outermost surface layer on the conductive substrate. The outermost surface layer contains a copolymer (a) derived from a reactive monomer having charge transport property and a reactive monomer having no charge transport property, and a polymer prepared by polymerizing, in the presence of the copolymer (a), a reactive monomer (b) that has a solubility parameter (SP value) different from a solubility parameter (SP value) of the reactive monomer having no charge transport property by about 2 (cal/cm | 12-29-2011 |
20110318677 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An electrophotographic photoconductor includes a conductive substrate and an outermost surface layer formed on the conductive substrate and containing a binder resin and a copolymer derived from a reactive monomer having charge transport property and a reactive monomer having no charge transport property, the copolymer having a side chain with 4 or more carbon atoms in a constitutional unit derived from the reactive monomer having no charge transport property. | 12-29-2011 |
20120021345 | PHOTOELECTRIC CONVERSION DEVICE, ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - Provided is to provide a photoelectric conversion device including an organic compound layer which contains polymer (a) having partial structures represented by the following formulae (1) and (2) respectively. In the formula, R | 01-26-2012 |
20120100472 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - To provide an electrophotographic photoreceptor including the outermost surface layer formed from a cured film of a composition containing a compound having a chain polymerizable functional group and a charge transportable skeleton in a molecule and a chain transfer agent having a sulfur atom in a molecule, in which the reaction rate of the compound having a chain polymerizable functional group and a charge transportable skeleton in a molecule is about 90% to about 100% and the charge mobility of the cured film at an electric field intensity of 1.0×10 | 04-26-2012 |
20120189948 | CHARGE TRANSPORT FILM, ORGANIC ELECTRONIC DEVICE, ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - Provided is a charge transport film including an enethiol resin having a charge transporting skeleton, and having a sulfur atom content of from 2.0% by mass to 15% by mass. | 07-26-2012 |
20120196214 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - Provided is an electrophotographic photoreceptor including a substrate and an outermost layer containing a cured film of a composition containing a compound having a chain polymerizable functional group and a charge transporting skeleton in the same molecule, and at least one chain transfer agent selected from a compound having 4 or more primary thiol groups and a compound having 2 or more secondary thiol groups. | 08-02-2012 |
20120196215 | THIOL GROUP-CONTAINING CHARGE TRANSPORTING MATERIAL, THIOL GROUP-CONTAINING CHARGE TRANSPORTING MATERIAL-DISSOLVING SOLUTION, PHOTOELECTRIC CONVERSION DEVICE, ELECTROPHOTOGRAPHIC PHOTORECEPTOR, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - Provided is a thiol group-containing charge transporting material represented by the following general formula (1): | 08-02-2012 |
20120202146 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - Provided is an electrophotographic photoreceptor including: a functional layer containing: a polymer of a first compound having a chain polymerizable functional group and a charge transporting skeleton in one molecule, and at least one second compound selected from a compound including at least one kind of the repeating unit represented by formula (AA) and having a weight average molecular weight of 10000 or less, a compound including at least one kind of the repeating unit represented by formula (BB) and having a weight average molecular weight of 10000 or less, a phthalic ester, a trimellitic ester, a fatty acid ester, a polyhydric alcohol ester, and a polyhydric alcohol ether. | 08-09-2012 |
20120231379 | FLUORINE-CONTAINING RESIN PARTICLE DISPERSION, METHOD FOR PREPARING FLUORINE-CONTAINING RESIN PARTICLE DISPERSION, COATING LIQUID WHICH CONTAINS FLUORINE-CONTAINING RESIN PARTICLES, METHOD FOR PREPARING COATING FILM WHICH CONTAINS FLUORINE-CONTAINING RESIN PARTICLES, COATING FILM WHICH CONTAINS FLUORINE-CONTAINING RESIN PARTICLES, MOLDED BODY, ELECTROPHOTOGRAPHIC PHOTORECEPTOR, METHOD FOR PREPARING ELECTROPHOTOGRAPHIC PHOTORECEPTOR, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - Provided is a fluorine-containing resin particle dispersion including: fluorine-containing resin particles, a resin which is not dissolved in at least one solvent in a group of hydroxyl group-containing solvents including an alcohol-based solvent having 1 to 10 carbon atoms, containing no aromatic ring in the molecule structure, and a water-based medium, and which is adhered on the surface of the fluorine-containing resin particles, and at least one solvent, in which the resin is not dissolved, in the group of hydroxyl group-containing solvents, in which the fluorine-containing resin particles having the resin adhered on the surface thereof are dispersed. | 09-13-2012 |
20130052570 | CHARGE-TRANSPORTING FILM, PHOTOELECTRIC CONVERSION DEVICE, ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - A charge-transporting film includes a polymer of a compound represented by Formula (I): | 02-28-2013 |
20130052571 | NOVEL COMPOUND, CHARGE TRANSPORTING FILM, PHOTOELECTRIC CONVERSION DEVICE, ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - Provided is a compound represented by the following General Formula (I): | 02-28-2013 |
20130052572 | COMPOUND, CHARGE TRANSPORTING FILM, PHOTOELECTRIC CONVERSION DEVICE, AND ELECTROPHOTOGRAPHIC PHOTORECEPTOR USING THE COMPOUND, METHOD OF PRODUCING ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - Provided is a compound represented by the following Formula (I): | 02-28-2013 |
20130052573 | NOVEL REACTIVE COMPOUND, CHARGE TRANSPORTING FILM, PHOTOELECTRIC CONVERSION DEVICE, ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND METHOD OF PRODUCING THE SAME, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - Provided is a reactive compound represented by the following General Formula (I): | 02-28-2013 |
20130230724 | POLYIMIDE PRECURSOR COMPOSITION, POLYIMIDE-MOLDED PRODUCT, AND IMAGE FORMING APPARATUS - A polyimide precursor composition includes a polyimide precursor including a repeating unit represented by the following Formula (1), a solvent, and acidic carbon black having a pH of 5.0 or less, | 09-05-2013 |
20130260295 | COMPOSITION FOR FORMING CHARGE TRANSPORTING FILM, ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - Provided is a composition for forming a charge transporting film, including a solvent having a dielectric constant of 5.0 or more, at least one kind of compound selected from a group consisting of the following compounds (I-a), (I-b), (I-c), and (I-d) and a compound represented by the following Formula (II), fluorine-containing resin particles, and a fluorine-containing dispersant, | 10-03-2013 |
20140072341 | CHARGE TRANSPORTING FILM, PHOTOELECTRIC CONVERSION DEVICE, ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - A charge transporting film includes a cured film of a composition containing at least one selected from reactive compounds represented by the following Formula (I): | 03-13-2014 |
20140072906 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - Provided is an electrophotographic photoreceptor including a conductive substrate; a charge generating layer provided on the conductive substrate; a charge transporting layer provided on the charge generating layer; and an outermost surface layer provided on the charge transporting layer, wherein the charge transporting layer includes a charge transporting material and a polycarbonate copolymer having a solubility parameter as calculated by a Feders method of from 11.40 to 11.75, and the outermost surface layer includes a charge transporting material, fluorine-containing resin particles, and a fluorine-containing dispersant. | 03-13-2014 |
20140072907 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - Provided is an electrophotographic photoreceptor including a conductive substrate and a photosensitive layer provided on the conductive substrate, wherein an outermost surface layer includes a cured film of a composition containing inorganic particles having polymerizable groups and at least one selected from the reactive compounds represented by the following formulae (I) and (II): | 03-13-2014 |
20140079435 | NOVEL REACTIVE COMPOUND, CHARGE TRANSPORTING FILM, PHOTOELECTRIC CONVERSION DEVICE, ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND METHOD OF PRODUCING THE SAME, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - Provided is a reactive compound represented by the following General Formula (I): | 03-20-2014 |
20140205939 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor includes a conductive substrate, and a photosensitive layer provided on the conductive substrate, and an outermost surface layer of the electrophotographic photoreceptor is constituted with a polymerized product or crosslinked product of a composition including at least one selected from reactive compounds represented by the formulae (I) and (II) and a non-reactive charge transporting material, a content of the non-reactive charge transporting material in the composition is from 5% by weight to 40% by weight based on the weight of the outermost surface layer, and a content of the reactive compound before the reaction in the outermost surface layer is 3% by weight or less based on the weight of the outermost surface layer. | 07-24-2014 |
20140213723 | POLYIMIDE PRECURSOR COMPOSITION AND METHOD FOR PREPARING POLYIMIDE PRECURSOR COMPOSITION - A polyimide precursor composition includes an organic amine compound and a resin which contains a repeating unit represented by the following Formula (I) and has an imidization rate of 0.2 or less dissolved in a solvent containing water and one or more kinds of organic solvents selected from a water-soluble ether solvent, a water-soluble ketone solvent, and a water-soluble alcohol solvent: | 07-31-2014 |
20140213724 | POLYIMIDE PRECURSOR COMPOSITION AND METHOD FOR PRODUCING POLYIMIDE PRECURSOR COMPOSITION - A polyimide precursor composition includes: a resin that contains a repeating unit represented by the following Formula (I) and has an imidization rate of 0.2 or less, | 07-31-2014 |
20140255834 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor includes an electroconductive substrate, a photosensitive layer provided on the electroconductive substrate, and an outermost surface layer, wherein the outermost surface layer is a layer constituted with a cured product of a composition including at least one of non-charge transporting compounds represented by formulae (I) and (II), and at least one non-reactive charge transporting material: | 09-11-2014 |
20140255835 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor includes an electroconductive substrate; a photosensitive layer that is provided on the electroconductive substrate; and an outermost surface layer, wherein the outermost surface layer is a layer made of a cured product of a composition that contains position isomer mixture of at least one kind among non-charge transporting compounds represented by Formulae (I) and (II) and at least one kind among non-reactive charge transporting materials. | 09-11-2014 |
20140295337 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor includes a conductive substrate; a charge generating layer provided on the conductive substrate; a charge transporting layer provided on the charge generating layer, which is configured to include a charge transporting material and a polycarbonate; and an outermost surface layer provided on the charge transporting layer, which is constituted with a cured film formed of a composition including a chain polymerizable compound having at least a charge transporting skeleton and a chain polymerizable functional group in the same molecule, and has an A value represented by the following equation (1) being from 0.1 to 0.3, and a B value represented by the following equation (2) being 0.02 or less, each of which is determined by an Attenuated total reflection Fourier transform infrared spectroscopy: | 10-02-2014 |
20140321882 | COMPOSITION FOR FORMING CHARGE TRANSPORTING FILM, ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - Provided is a composition for forming a charge transporting film, including a solvent having a dielectric constant of 5.0 or more, at least one kind of compound selected from a group consisting of the following compounds (I-b), (I-c), and (I-d), fluorine-containing resin particles, and a fluorine-containing dispersant, the following compounds (I-b), (I-c), and (I-d) further represented by a compound represented by the following Formula (V) | 10-30-2014 |