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8178264 |
Coating fluid for forming undercoat layer and electrophotographic photoreceptor having undercoat layer formed by applying said coating fluid
To provide a coating fluid for forming an undercoat layer having high stability, a high quality and long-life electrophotographic photoreceptor capable of forming a high quality image in various...
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8138300 |
Intermediate transfer member
There is disclosed an intermediate transfer member that includes a layer of a poly(imide-carbonate) copolymer having dispersed therein conductive particles. The layer can be a surface layer.
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8101327 |
Overcoat for electrophotographic imaging member and methods of making and using same
Disclosed herein is an electrophotographic imaging member comprising a substrate, a charge transport layer and an overcoat layer formed by combining a film forming binder and a hole transporting...
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8088541 |
Polyvinyl acetal resin, electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
The present invention relates to a polyvinyl acetal resin having a specific repeating structural unit, an electrophotographic photosensitive member using the polyvinyl acetal resin, and a process...
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8043777 |
Electrophotographic photoconductor, process cartridge, and image forming apparatus
The present invention provides an electrophotographic photoconductor including, an uppermost crosslinked surface layer including a cured product of a crosslinked surface layer composition...
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8000631 |
Developing device, image forming apparatus, and image forming method
A developing device is provided to suppress image density unevenness by adjusting conditions of toner adhesion to an amorphous silicon photoconductor to a suitable range even when using both an...
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7985522 |
Electrophotographic photoreceptor
Disclosed is an electrophotographic photoreceptor which is excellent in wear resistance and electrical characteristics. Specifically disclosed is an electrophotographic photoreceptor containing a...
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7955770 |
Photoconductor, photoconductor cartridge and image-forming apparatus
The surface of a photoconductor is coated with a surface protection layer comprising a cured material of a fluorine-containing photo-curing composition containing fluorinated alkyl group-containing...
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7951515 |
Ester thiols containing photogenerating layer photoconductors
A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, and at least one charge transport layer, and where the photogenerating layer contains at least one...
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7935465 |
Self lubricating photoreceptor
Disclosed is an electrophotographic imaging member that includes a lubricant delivering coating having a polymer matrix, a charge transport component, and a lubricant encapsulated within nano- or...
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7927774 |
Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus
An object of the present invention is to provide an electrophotographic photosensitive member having high durability and hardly causing sensitivity decrease even if short wavelength light,...
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7893185 |
Polycarbonate copolymer, method for producing the same, molded body, optical material, and electrophotographic photosensitive body
A polycarbonate copolymer contains: 0.1 to 50 mol % of a monomer unit represented by the following formula (1); and a monomer unit represented by the following formula (2). In the polycarbonate...
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7838190 |
Electrophotographic photosensitive member with surface layer of fluororesin particles and polyolefin with perfluoroalkyl group
An electrophotographic photosensitive member having excellent electrophotographic properties, a method of manufacturing the electrophotographic photosensitive member, and a process cartridge and an...
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7794905 |
Photoreceptor device having a self-assembled patterned binder layer
A photoreceptor device having at least one layer that is a self-assembled patterned binder layer, which may include at least one functional material.
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7754402 |
Electrophotographic photoconductive member and image forming apparatus
The present invention provides an electrophotographic photoconductive member comprising a substrate, and a photoconductive layer containing a hole transferring material, a charge generating...
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7718337 |
Electrophotographic photoreceptor
The present invention relates to an electrophotographic photoreceptor comprising an electroconductive substrate and a photosensitive layer formed thereon, wherein the photosensitive layer contains...
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7662528 |
Charge generating composition
A charge generating composition including at least one charge generating material, at least one polymer binder, and at least one styrene-containing copolymer is disclosed.
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7648811 |
Branched polyarylene ethers and processes for the preparation thereof
Branched polyarylene ether polymers comprising a plurality of branch points, each branch point being of the formula wherein each Ar is an aryl moiety or an alkylaryl moiety, provided that when Ar...
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7645547 |
Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus
An electrophotographic photosensitive member is provided which has a photosensitive layer formed on a support. The electrophotographic photosensitive member has a surface layer containing a...
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7629095 |
Electrophotographic photoreceptor
An electrophotographic imaging member includes a substrate, a charge generating layer, and a charge transport layer, where the charge generating layer includes a photogenerating material and a...
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7585604 |
Electrographic photosensitive member, process cartridge and electrophotographic apparatus
An object of the present invention is to provide an electrophotographic photosensitive member having high durability and hardly causing sensitivity decrease even if short wavelength light,...
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7560207 |
Organic photoreceptor and electrophotographic image forming apparatus including the photoreceptor
An organic photoreceptor and an electrophotographic image forming apparatus including the organic photoreceptor are provided. The organic photoreceptor has the same advantage as a conventional...
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7556902 |
Aromatic polyester resin, and electrophotographic photoconductor and image forming apparatus using thereof
The object of the invention is to provide a novel aromatic polyester resin useful as a binder resin or charge transporting polymer for an organic photoconductor and an electrophotographic...
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7550240 |
Newtonian, ultrasonic-insensitive charge generating layer dispersion composition and a method for producing the composition
This invention relates to electrophotographic elements containing a layer formed from coating compositions containing a mixture of polymeric binders, including a polyvinyl butyral and a polyester...
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7507512 |
Particle-in-binder X-ray sensitive coating using polyimide binder
An X-ray sensitive coating (22) for a flat panel direct conversion X-ray detector for medical or industrial imaging. A composite particle-in-binder (PIB) material (22) may contain X-ray...
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7507509 |
Electrophotographic photoreceptor, and image forming method, image forming apparatus and process cartridge using the electrophotographic photoreceptor
An electrophotographic photoreceptor, including a crosslinked material including: units obtained from a radical polymerizing monomer A having three or more radical polymerizing groups;a compound B...
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7473507 |
Electrophotographic photoreceptor with polyester resin in photosensitive layer
An electrophotographic photoreceptor, which contains a polyester resin having a repeating structure comprising a bivalent phenol residue represented by the following formula (1) and an aromatic...
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7468230 |
Wet-developing electrophotographic photoconductor and wet-developing image
It is an object of the present invention to provide a wet-developing electrophotographic photoconductor which can be manufactured stably by making use of particular physical property indexes of an...
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7468231 |
Imaging members
An imaging member comprising a supporting substrate; a single layer photoreceptor for both charge generation and charge transport disposed on the supporting substrate, the single layer...
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7462431 |
Photoreceptors
Photogenerating layers of photoreceptors are provided utilizing a photogenerating component/resin dispersion formed in a low boiling point solvent.
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7452640 |
Electrophotographic photoconductor for liquid development, image forming apparatus having the same, and image forming method
An object of the present invention is to provide an electrophotographic photoconductor for liquid development, having high resistance to a carrier solvent for use in a liquid developing method and...
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7449271 |
Electrophotographic photoconductor and methods therefor
An electrophotographic photoconductor and method that seldom generate cracks even while recycling a photoconductor drum and peripheral members or in a liquid developing process, and thereby produce...
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7432028 |
Polymeric charge transport compositions
This invention relates to a novel organophotoreceptor that includes: (a) a charge transport composition comprising molecules having the formula where n is an average of a distribution of integers...
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7427460 |
Hydrazone-based charge transport materials having an ethylenically unsaturated group
Improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising: (a) a...
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7416825 |
Single layer type electrophotographic photoconductor and image forming device
The present invention provides a single layer type electrophotographic photoconductor which exhibits the small number of generated black spots in a formed image and exhibits the excellent...
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7384718 |
Charge generating composition and imaging member
A composition that finds particular utility in forming a charge generating layer of an imaging member includes at least one charge generating material, at least one polymer binder and at least one...
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7348112 |
Polymeric charge transport materials having repeating units comprising an aromatic group and a —S— linkage
Improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising: (a) a...
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7348113 |
Electrophotographic photoconductor comprising a polycarbonate resin having a dihydroxy diphenyl ether unit
A polycarbonate resin has a constitutional unit expressed by the following general formula (I): A1 represents an alkyl group which is substitutional or nonsubstitutional, and an aryl group which is...
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7323232 |
Resin composition for spacer, spacer, and liquid crystal display device
To provide a resin composition for spacer useful for the formation of a pixel-patterned spacer on a substrate in a liquid crystal display device, a spacer using the composition, and a liquid...
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7314694 |
Photoconductive imaging members
An imaging member comprised of a hole blocking layer, a photogenerating layer, and a charge transport layer, and wherein the hole blocking layer is comprised of a metal alkyoxide, an amino...
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7309552 |
Electrophotographic photoconductor, electrophotography, electrophotographic apparatus, process cartridge for electrophotographic apparatus and azo compound
To provide a highly sensitive and highly durable electrophotographic photoconductor, electrophotography, photographic apparatus and process cartridge for the electrophotographic apparatus which is...
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7291433 |
Poly(hydrazone)-based charge transport materials
An improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising: (a) a...
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7270927 |
Non-halogenated polymeric binder
A non-halogenated binder material, such as for an electrophotographic imaging member binder, includes a copolymer of vinyl acetate and vinyl acid.
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7267917 |
Photoreceptor charge transport layer composition
A charge transport layer composition for a photoreceptor includes at least a binder, at least one arylamine charge transport material, e.g.,...
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7244535 |
Electrophotographic photoreceptor
An electrophotographic photoreceptor including an electroconductive substrate and a photosensitive layer formed thereon, the photosensitive layer containing a polyester resin which is a...
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7229732 |
Imaging members with crosslinked polycarbonate in charge transport layer
A composition comprised of a charge transport compound and a crosslinked polymer composition generated from the curing of a solution of a hydroxyl pendant polycarbonate, a hydroxylated charge...
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7217483 |
Electrophotographic photoreceptor, drum cartridge employing the electrophotographic photoreceptor, and image-forming apparatus
The present invention provides an electrophotographic photoreceptor which has high light resistance, has high durability in exposure to oxidizing gases such as ozone and NOx, is excellent in...
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7186490 |
Photosensitive material, electrophotographic photoreceptor using the material, and electrophotographic image forming method and apparatus using the photoreceptor
A titanyl phthalocyanine crystal having an X-ray diffraction spectrum having a plurality of diffraction peaks in which a maximum diffraction peak is observed at a Bragg (2 θ) angle of ...
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7175955 |
Electrophotographic photoreceptor, electrophotographic process cartridge and image forming apparatus
An electrophotographic photoreceptor comprising a conductive substrate, and at least one layer, which contains a polymeric compound having a repeating unit selected from repeating units represented...
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7166400 |
Organophotoreceptor with a hydrazone polymer charge transport material
An organophotoreceptor comprises an electrically conductive substrate and photoconductive element on the electrically conductive substrate, the photoconductive element having a) a charge transport...
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