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5656407 |
Photosensitive material for electrophotography
A photosensitive material for electrophotography, wherein the charge-generating agent comprises a P-type charge-generating pigment and an N-type charge-generating pigment in combination, at least...
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5654117 |
Process for preparing an electrophotographic imaging member
An electrophotographic imaging member is prepared by applying a charge generating layer to an underlying layer and drying the charge generating layer at ambient temperature.
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5652077 |
Electrophotographic image drum
An image drum, of electrically conductive resin, includes a cylinder element adhesively bonded, using a non-solvent adhesive, to a bearing/drive element. To insure secure attachment of the...
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5641598 |
Stilbene compound, process for producing same and electrophotographic photoconductor containing same
A stilbene compound is disclosed which has the following general formula (I): ##STR1## wherein R 1 and R 2 each stand for hydrogen, an alkyl group or an acyl group and Ar 1 and Ar 2 each stand...
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5633966 |
Method of forming refractive index distribution in light transmission path, and optical filter and method of using the same
A method of forming a refractive index distribution in a light transmission path including a core and a cladding layer involves steps of applying a photosensitive material layer to the surface of...
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5629920 |
Photoelectric sensor, information recording system, and information recording method
An information recording system including a photoelectric sensor having a semiconductive, photoconductive layer stacked on an electrode, and an information recording medium having an information...
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5624776 |
Electrophotographic photosensitive member provided with a light receiving layer composed of a non-single crystal silicon material containing columnar structure regions and process for the production thereof
An electrophotographic photosensitive member comprising a substrate and a light receiving layer composed of a silicon-containing non-single crystal material disposed on said substrate,...
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5622801 |
Phthalocyanine pigment and dispersion thereof and electrophotographic photoreceptor containing the pigment
An electrophotographic photoreceptor comprising a conductive substrate having thereon a photosensitive layer, the photosensitive layer containing a hydroxymetal or hydroxysilicon phthalocyanine...
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5618645 |
Electrophotographic printing plate precursor
An electrophotographic printing plate precursor is disclosed, which is formed by forming a toner image on a photoconductive layer of an electrophotographic photoreceptor comprising at least a...
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5604062 |
Organic photoconductor with crosslinked polyphenylene sulfide support for electrophotography
In an organic photoconductor for electrophotography, improved adhesiveness is realized between a substrate that contains a crosslinked polyphenylene sulfide as its main component and an organic...
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5597671 |
Electrophotographic printing plate precursor and method for development thereof
An electrophotographic printing plate precursor having satisfactory mechanical strength and water-resistance and suitable to the direct electrical supply system, and a method for development...
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5587263 |
Electrophotographic photoreceptor using triarylamine compounds
A triarylamine compound useful as a charge transport material of an electrophotographic photoreceptor, which represented by formula (I) ##STR1## wherein Ar 1 and Ar 2 each represents a phenyl...
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5585214 |
Electrophotographic photosensitive member having polycarbonate with end-cured glycidyl groups
An electrophotographic photosensitive member having a photosensitive layer formed on a supporting member and a protective layer formed on the photosensitive layer if necessary. At least one of the...
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5582771 |
Method for preparing electrically-conductive needle-like zinc oxide
Herein disclosed is a method for preparing electrically-conductive needle-like zinc oxide which comprises the steps of preparing a vapor mixture by admixing zinc vapor and vapor of at least one...
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5582949 |
Process for improving belts
A process for coating flexible belt seams including providing a flexible belt having an outwardly facing surface and a welded seam, forming a smooth liquid coating on the welded seam, the liquid...
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5578405 |
Electrophotographic photoconductor containing disazo and trisazo pigments
An electrophotographic photoconductor includes an electroconductive support and a single-layered photoconductive layer formed thereon, containing a charge transporting material, a binder resin, and...
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5576162 |
Imaging element having an electrically-conductive layer
Imaging elements, such as photographic, electrostatographic and thermal imaging elements, are comprised of a support, an image-forming layer and an electrically-conductive layer comprising a...
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5565289 |
Electrophotographic photosensitive member, and process cartridge and electrophotographic apparatus employing the same
An electrophotographic photosensitive member is disclosed which has an electroconductive support and a photosensitive layer formed thereon. The photosensitive member is electrified by applying...
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5563014 |
Migration imaging members
Disclosed is a migration imaging member comprising (a) a substrate, (b) a softenable layer comprising a softenable material and a photosensitive migration marking material, and (c) a...
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5560871 |
Method for preparing electrically-conductive zinc oxide
A method for preparing electrically-conductive zinc oxide is herein disclosed, which comprises the steps of preparing a vapor mixture comprising zinc vapor and vapor of at least one member selected...
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5531913 |
Haze-free transparent film-forming aqueous coating compositions for magnetic recording layers
An aqueous coating composition for forming a transparent magnetic recording layer contains a fine solid particle aqueous dispersion of dispersed magnetic particles, gelatin, and a polyelectrolyte...
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5527652 |
Organic photoconductor
An organic photoconductor including a base layer formed of a first material and a photoconductive layer formed of a second material. The organic photoconductor being characterized in that when it...
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5525446 |
Intermediate transfer member of thermoplastic film forming polymer layer laminated onto a base layer
An intermediate transfer member includes a base layer and a top thermoplastic film forming polymer layer. The base layer can include carbon and the thermoplastic film forming polymer layer can...
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5521678 |
Electrostatographic imaging drum having a periphery flush with periphery of an end cap
An electrostatographic imaging member assembly comprising a hollow electrostatographic imaging drum having a first end and a second end, at least one coating on the drum extending from the first...
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5504558 |
Electrophotographic photosensitive member, and electrophotographic apparatus and device unit employing the same
The present invention provides an electrophotographic photosensitive member comprising a photosensitive layer formed on an electroconductive support, and a surface layer formed on the...
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5503953 |
Lithographic plate
A lithographic plate includes a substrate made of a polyester film having a light transmittance of 50% or less, a bending angle in the range of 30° to 90°, and a rupture strength after being bent...
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5496670 |
Optical storage medium
A macroscopically isotropic side chain liquid crystal polymer is described containing photochromic mesogenic groups and which through irradiation with light is capable of being permanently or...
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5492784 |
Positively-chargeable single-layered type electrophotographic photoconductor
A positively-chargeable single-layered type organic electrophotographic photoconductor composed of an electroconductive support and an organic single-layered photoconductive layer containing a...
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5480752 |
Electrophotographic lithograph printing plate material
An electrophotographic lithograph printing plate material having excellent anti-toner fogging property and dimensional stability has an intermediate layer formed between a front surface of a...
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5474868 |
Electrophotographic photoconductor with lignin
An electrophotographic photoconductor having an electroconductive support and a photoconductive layer formed thereon containing a charge generating material, a charge transporting material and lignin.
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5437952 |
Lithographic photosensitive printing plate comprising a photoconductor and a naphtho-quinone diazide sulfonic acid ester of a phenol resin
A photosensitive lithographic printing plate comprises a conductive support and provided thereon, a photoconductive layer of a composition comprising a photoconductor and an esterified compound of...
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5426012 |
Electrophotographic printing plate precursor
An electrophotographic printing plate precursor is disclosed, which comprises an electrically conductive support having thereon a photoconductive layer containing a photoconductive pigment and...
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5426172 |
Concentration or separation method, copolyamides copolyimide-amides and the use thereof
Mixtures of salts of organic carboxylic acids and organic compounds of non-salt character, dissolved in a C 1 -C 4 alkanol, can be concentrated or separated with a semipermeable membrane made...
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5424158 |
Photosensitive material for electrophotography comprising metal free phthalocyanine molecularly dispersed in the binder polymer
A photosensitive material for electrophotography, comprises a support and, provided thereon, an organic photoconductive layer of single-layer structure comprising a binder polymer, an electron...
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5418101 |
Photosensitive composition for use in an OPC comprising X-metal free phtholocyamine and a dispersant
A composition of matter, useful in the production of organic photoconductor devices, comprising a dispersion of X-form metal-free phthalocyanine in an organic liquid containing an effective amount...
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5408298 |
Image forming apparatus
The image forming apparatus in this invention uses a positive corona discharger as a main charger. A photosensitive material having a charge accepting ability per run-off current of at least 40...
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5399452 |
Electrophotographic photoreceptor
An electrophotographic photoreceptor comprising an electroconductive support having thereon a light-sensitive layer. At least the outermost layer of the light-sensitive layer contains (1) fine...
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5399450 |
Method of preparation of a color filter by electrolytic deposition of a polymer material on a previously deposited pigment
A color filter formed in accordance with the invention is formed by depositing a thin film of organic pigment an on electrode by electrochemical methods. An organic pigment is included in an...
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5393626 |
Increasing photoconductivity by adjusting the discotic phase
The present invention relates to photoconductors composed of low molecular weight or polymeric organic compounds with liquid crystal properties, where the photoconduction in the discotic phase is...
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5389480 |
Electrophotographic photoreceptor
An electrophotographic photoreceptor comprising an electrically conductive substrate and a photosensitive layer formed thereon, wherein the photosensitive layer contains at least one member...
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5382486 |
Electrostatographic imaging member containing conductive polymer layers
An electrostatographic imaging member is disclosed including a supporting substrate, at least one electrically conductive layer, and at least one electrostatographic imaging layer capable of...
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5381211 |
Texturing of overcoated imaging member for cleaning
A method and apparatus is provided for cleaning residual toner and paper fiber residue from an electrophotographic imaging member using an elastomeric cleaning blade. Reduced friction between the...
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5373348 |
Converting device including variable electroconductivity material, and recording and detecting method using the same
A converting device, and recording and detecting methods using the same, wherein the converting device includes a converting layer containing a variable electroconductivity material exhibiting...
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5372906 |
Image forming method
A toner image forming method is disclosed. In the method a photoreceptor having a shorter circumferene than length of a toner image to be transferred is used. The photoreceptor is exposed with an...
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5356741 |
Control of the acid/base environment in photoconductive elements
A method of controlling variations in electrical characteristics in electrophotographic imaging devices by eliminating the effect of acidic or basic impurities in a photoconductive element. A...
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5354636 |
Electrophotographic photoreceptor comprising polyimide resin
An electrophotographic photoreceptor comprising a conductive substrate having provided thereon a photoconductive layer is disclosed, said photoconductive layer containing a high polymeric compound...
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5354635 |
Electrophotographic photoreceptor comprising mixed crystals of titanylphthalocyanine and vanadylphthalocyanine
An electrophotographic photoreceptor having a charge generation material is disclosed. The charge genaration material is mixed crystals of a titanylphthalocyanine and a vanadyl phtalocyanine, which...
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5352551 |
Process for storing information with high storage density
A process for storing information in an organic recording layer which, when treated locally with an organic solvent in accordance with the input of information, is able to change its absorption...
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5342784 |
Electrophotographic lithographic printing plate
Provided is an electrophotographic photoreceptor which comprises an electrically conductive support and a photoconductive layer comprising at least an organic photoconductive compound and an alkali...
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5340675 |
Electrophotographic recording material
An electrophotographic recording material which comprises an electrically conductive support having thereon a photoconductive layer, characterized in that said layer contains one or more...
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