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WO/1991/005290A1 |
A persistent photoconductive coating composition containing a persistent photoconductor and a diazo sensitizer disbursed in an inert coherent matrix. In a preferred embodiment, a photoinitiator and an acetate or phenolic hydroxyl contain...
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WO/1991/004518A1 |
A photoconductive layer (5) of a photosensitive member (1) and a charge retaining layer (6) of a charge retain medium (2) are so disposed as to face each other with a predetermined distance (d). After a power source (8) is connected, lig...
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WO/1991/004514A1 |
In a new process for reversible or irreversible production of an image by the photographic effect of energy on a recordng layer in the presence or absence of an electrical and/or magnetic field, a pattern of surface charges corresponding...
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WO/1991/003520A1 |
The present invention is directed to aqueous dielectric coatings exhibiting reduced migration of the electrical ions of the conductive substrate. The coating composition comprises: (1) a binder comprising: (a) an aqueous polymerizable em...
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WO/1991/003007A1 |
A method and apparatus for transferring liquid toner images from an image forming surface (10) to an intermediate transfer member (40) for subsequent transfer to a final substrate (42). The liquid toner images include carrier liquid and ...
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WO/1991/003006A1 |
An imaging system including an image bearing surface (16) and an intermediate transfer member (40) operative for transfer of liquid toner images from the image bearing surface (16) to a substrate (42) provides for first transfer engageme...
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WO/1991/002298A1 |
A method of using a liquid electrophotographic toner with a permanent master to electrostatically transfer an electrophotographically developed electrostatic image via a reversal photographic process from the permanent master to a receiv...
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WO/1991/001220A1 |
This invention relates to a composite tubular article used as a belt which is suitable for fixation on an image forming apparatus such as a duplicating machine, particularly for heat fixation, and to its production method. Conventionally...
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WO/1990/012489A1 |
A method for removing odor from an aqueous solution of polymeric quaternary ammonium salt solution containing residual aliphatic tertiary amine and choline chloride or derivative thereof, said process comprising adding a sufficient amoun...
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WO/1990/011551A1 |
A photosensitive member having an electrode on the front surface thereof and a photoconductive layer stacked on the electrode. The member faces an electrostatic data recording medium which comprises a charge-holding layer having an elect...
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WO/1990/010892A1 |
The electrostatic data recording medium (110) of the invention comprises an electrode layer (113) and a charge-holding layer (111). The method of laminating the charge-holding layer (111) and the structure of the layer are improved. Furt...
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WO/1990/010881A1 |
The filter production method comprises forming a hologram by irradiating a photosensitive material and a mask spaced apart from each other at a given distance with the rays of light from opposite sides respectively, and reproducing the i...
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WO/1990/010256A1 |
An electrographic image carrier comprises a metal sublayer (1), an intermediate electroconducting and stabilizing layer (2) and a photoconducting layer (3). Due to the microgranular structure of the material of the stabilizing layer (2) ...
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WO/1990/008984A1 |
An apparatus for enhancement of liquid toner image transfer includes an image bearing surface, apparatus for forming a liquid toner image on the image bearing surface, a second surface arranged for movement relative to the image bearing ...
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WO/1990/007540A1 |
This invention provides an utterly new polysilane compound having a weight-average molecular weight of 6000 to 20000 which is completely free from a chlorine atom and a group causative of a side reaction and wherein all silicon groups ar...
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WO/1990/007146A1 |
An electrophotographic image carrier comprises a metal backing (1), an elastic layer (2) applied to the metal backing (1) and made of a heat-resistant polymer material, on which is placed an intermediate electroconductive stabilizing lay...
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WO/1990/005893A1 |
In the particular embodiment of the invention described in the specification, a hot melt ink print is prepared by applying the ink to a porous substrate (12), permitting it to solidify, and reheating the substrate and the ink to a temper...
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WO/1989/003546A1 |
A photosensitive material for electrophotography, which comprises a conductive base material (1) having formed thereon a photosensitive layer (20) containing a thiophene derivative, a diphenylthiophene derivative or an oxadiazole derivat...
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WO/1988/008330A1 |
In a roll crusher of the type wherein an object to be crushed is fed into a crushing chamber defined between a pair of rollers facing each other and is compressed and crushed between these rollers, a flange (12) is formed at both ends of...
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WO/1988/007224A1 |
A material having variable conductivity, which is prepared by compounding (i) a conductivity change inducing agent composed of a substance undergoing reversible or irreversible structural changes between nonionic and ionic structures by ...
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WO/1988/006175A1 |
Phthalocyanine of formula (I), wherein M is a metal or is 2H, bonded at 29 and 31 positions shown. R1 to R8 are the same or different and are independently selected from C1 to C20 alkyl, C1-C20 alkenyl, -X-COO-X1, -X-O-Y, alpha, and -X-C...
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WO/1988/002880A1 |
A photosensitive member which comprises a carrier-transporting layer containing a carrier-transporting material and a binder and a carrier-generating layer containing a carrier-generating material and a binder, laminated in this order an...
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WO/1988/002362A1 |
Novel aryl-N-aminoalkyl-4-(sulfonamido)benzamides are described as useful antiarrhytmic agents. Their use in the treatment of cardiac arrhytmias especially as combination class I/class III agents is described. Pharmaceutical formulations...
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WO/1988/000725A1 |
An electrophotographic photosensitive material having an improved ozone oxidation resistance and comprising a conductive support having provided thereon a photosensitive layer containing an electric charge generating substance and an ele...
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WO/1988/000726A1 |
An image-forming process which comprises positively charging the surface of an electro-photographic photosensitive element having in sequence on a conductive support at least a layer with a charge transfer function, a layer with a charge...
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WO/1987/007736A1 |
A photosensitive material for electrophotography having high sensitivity and excellent durability, which comprises a photosensitive layer containing at least one of azo compounds having a tetraphenylthiophene or tetraphenylthiophene 1,1-...
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WO/1987/003388A1 |
A photo-electric imaging device having an array of rows (7) of minute electrodes (8) and an array of columns (1) of electrodes (6) overlying the rows and separated by a semiconductor layer (6). Imaging plates (11) are positioned above ea...
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WO/1987/002481A1 |
In the recording for a mass memory system by means of a plurality of electrostatic electron beam charges on an insulator storage medium comprising a dielectric material having a maximum secondary electron emission coefficient (deltamax) ...
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WO/1987/000645A1 |
A process for providing a direct optical readout of a pattern or collection of data in a plurality of distinctive colors on a dielectric film capable of receiving information by exposure to an electron beam imaging source, which process ...
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WO/1986/002745A1 |
A method of and and apparatus for forming a multi-color image by subjecting to charging and image exposure a photosensitive body (4), which consists of a photoconductive layer (1) sandwiched from the upper and lower sides thereof between...
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WO/1985/002691A1 |
A layer arrangement of a photosensitive member for electrophotography which includes an amorphous silicon layer. The amorphous silicon layer includes a long-wave sensitization region (5) which has a narrower forbidden band width than tha...
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WO/1985/002292A1 |
A photothermomagnetic recording film manufacturing method in which a perpendicular-magnetization film of a Bi-substituted rare earth iron garnet is formed on a substrate by sputtering a target consisting of an oxide which contains at lea...
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WO/1985/000901A1 |
A photoconductive assembly comprising a conductive substrate, a photoconductive layer and a topcoat comprised of a cured film-forming silicone polymer. The topcoat has a thickness of between 5 and 100 nm and a melting point above 100oC.
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WO/1985/000440A1 |
An hydroxyaluminumphthalocyanine colorant compound with reduced green absorption having peak absorption bathochromically shifted to 621 nm. In a preferred embodiment, hydroxyaluminumphthalocyanine of the invention exhibits reduced absorp...
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WO/1985/000437A1 |
Electrophotographic elements containing, in sequence, a photoconductor layer, a metal electrically conducting layer, a caprolactam polyamide interlayer and a support. The element can additionally comprise an integral screen layer between...
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WO/1984/004825A1 |
An electrophotographic sensitized material capable of providing a toner-carrying surface being free from scumming and having high sensitivity, which mainly comprises polyvinylcarbazole or its derivative and a sensitizing dye represented ...
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WO/1984/002400A1 |
Apparatus and methods for providing patterns of materials, as for color printing. A support member (30) has groups of surface areas (40A, 40B, etc) with each surface area in a given group (eg 40A) facing generally in a direction differen...
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WO/1983/002612A1 |
A method of preparing a compound of the general formula$(10,) which: R1 and R2 independently represent a hydrogen atom, an alkyl or substituted alkyl group, an aryl or substituted aryl group, an aralkyl or substituted aralkyl group, a cy...
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WO/1983/002506A1 |
An electrically conductive composition that is particularly useful for reducing the propensity of image-forming elements to accumulate static electrical charge. The composition comprises an aqueous dispersion of a combination of (a) a no...
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WO/1983/001618A1 |
New compounds of the formula$(10,)$wherein n is 1 or 2; R1 and R2 are alkyl or aralkyl; R3 is alkyl; when n is 1, R4 is alkyl, aralkyl, alkenyl, aralkenyl, aryl or a polyether radical having up to 10 ether groups; and when n is 2, R4 is ...
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WO/1982/003940A1 |
Methods and apparatus (10) for reversibly altering magnetic characteristics or domains of ferrimagnetic material (12) by photomagnetic and thermomagnetic means (14), particularly by electron spin reversal (spin-flip). Photomagnetic elect...
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WO/1982/002178A1 |
Previous flight control systems summed the resistive forces which are overcome by the instant system. A bifurcated feel unit (60) for use in a dual path flight control system includes separate input levers (162, 164) for the pilot and co...
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WO/1982/001261A1 |
A photoconductive member which comprises a support, a photoconductive layer having silicon atoms as a base and an amorphous material containing either of hydrogen atoms and halogen atoms, and an intermediate layer formed therebetween, wh...
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WO/1981/001204A1 |
This invention involves the production of sound tracks for motion picture film. Prior motion picture film sound tracks could not overlap the photographic image and were placed on the edge of the film, nor were they digitally coded to pro...
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WO/1980/000501A1 |
The carrier for image recording comprises a substrate (1) covered with a layer (2) of a material, which is sensitive to radiation and contains a substance characterized by an ability, in its solid state, to change spasmotically its dipol...
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WO/1980/000195A1 |
An electrographic element comprising an electrically insulating support (3), an electrically conductive layer (4) overlying the support, and an electrically insulating photoconductive layer (5) overlying the conductive layer, is provided...
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WO/1980/000014A1 |
An improved dielectric printing paper (10) and process for making the same, characterized by excellent resolution, contrast, and feel. The paper incorporates an inorganic salt such as magnesium chloride as a conductivity-providing ingred...
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WO/1979/000897A1 |
Copolymer comprising a major amount of hydrophobic monomer such as acrylic ester, methacrylic acid ester, aromatic vinyl and vinyl cyanide, and a minor amount of hydrophilic monomer such as acrylic acid and methacrylic acid is stably dis...
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WO/1979/000776A1 |
A method of making an amorphous semiconductor film or the like having desirable photoconductive and/or other properties comprises depositing on a substrate (18, 25, 50, 65, 75, 88), a solid amorphous semiconductor film (51, 66, 76, 88), ...
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JP7463802B2 |
An electrophotographic photoreceptor includes a conductive substrate and a photosensitive layer on the conductive substrate. The electrophotographic photoreceptor has an outermost surface layer that contains fluorine-containing resin par...
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