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7070893 Thick intermediate and undercoating layers for electrophotographic imaging members, and method for making the same  
An electrographic or electrostatographic imaging member comprises a supporting substrate, an undercoating layer, a charge generating layer, and a charge transport layer. Thick undercoating layers...
6737667 Image recording medium, image retrieving method and image retrieving apparatus  
In an image recording medium, in which a size of a first electrode layer is smaller than a recording photoconductive layer, image quality is enhanced by preventing an influence of corona discharge...
5882831 Acid doping latitude enlargement for photoreceptors  
An electrophotographic imaging member comprising a charge generating layer comprising trigonal selenium particles and a charge transport layer, the charge transport layer including a protonic acid...
5849445 Multilayer photoconductive elements having low dark decay  
A photoconductive element comprising an electrically conductive base; two or more charge generation layers; at least one charge transport layer; and a protective layer comprising diamond-like...
RE35246 Layed photosensitive material and electrophotography comprising selenium, arsenic and tellurium  
A photosensitive material for electrophotography is provided, which comprises in sequence an electroconductive substrate, a carrier transport layer composed of a selenium-arsenic alloy, a carrier...
5330863 Photosensitive material for electronic photography use  
A photosensitive material for use in electric photography, which comprises in sequence a conductive substrate; a carrier transport layer consisting of a selenium/arsenic alloy; a carrier...
5206103 Photoconductive imaging member with a charge transport layer comprising a biphenyl diamine and a polysilylane  
A photoresponsive imaging member comprised of a photogenerating layer, and a charge transport layer comprised of a mixture of a biphenyl diamine and a polysilylene.
5166021 Photoconductive imaging members with polycarbonate fluorosiloxane polymer overcoatings  
Polycarbonatefluorosiloxane polymers of the following formula ##STR1## wherein R1, R2, and R3 are independently selected from the group consisting of hydrogen, alkyl and aryl; k,j,m and n...
5162182 Photosensitive member for electrophotography with interference control layer  
A photosensitive member for electrophotography has a conductive substrate provided thereon with, in order, a charge transport layer, a charge generation layer, an interference control layer and an...
5139906 Photosensitive medium with a protective layer of amorphous hydrocarbon having an absorption coefficient greater than 10,000 cm-1  
A photosensitive medium which comprises an electroconductive substrate, an organic photosensitive layer formed on the substrate and a surface protective layer formed on the photosensitive layer...
5075188 Selenium electrophotographic photoreceptor  
The present invention provides a seleniumn electrophotographic photoreceptor comprising a laminate of a conductive base, a carrier transportaion layer consisting of amorphous selenium or an...
5039584 Charge transport layers containing purified polycarbonates  
A process for the purification of polycarbonates or copolymers thereof containing titanium catalyst residues, which comprises mixing a polycarbonate or copolymers thereof with a solvent; adding to...
5021310 Electrophotographic photoreceptor  
An electrophotographic photoreceptor is provided comprising, in sequence: a) a conductive base; b) a carrier transport layer; c) a carrier generation layer comprising a selenium alloy; d) a...
4990420 Electrophotographic photoreceptor with doped Se or Se alloy interlayer  
In an electrophotographic photoreceptor, a layer is interposed between the electroconductive substrate and the surface photosensitive layer or between the carrier transport layer and the carrier...
4990419 Function separation type electrophotographic photoreceptor comprising arsenic, selenium and tellurium  
An improved electrophotographic photoreceptor of a function separation type for long wavelength light is provided which comprises an As2 Se3 carrier transport layer, a 30 to 50 wt % Te-Se alloy...
4959287 Xeroradiographic imaging member  
A xeroradiographic imaging member containing a substrate having an electrically conductive surface, an electroradiographic insulating layer selected from the group consisting of selenium and...
4939056 Photosensitive member  
This invention provides a photosensitive member with a surface protector layer. The surface protective layer comprises a resin layer and an amorphous carbon layer. The surface protective layer of...
4933244 Phenolic epoxy polymer or polyester and charge transporting small molecule at interface between a charge generator layer and a charge transport layer  
An imaging member comprising an electrophotographic imaging member comprising a substrate having an electrically conductive surface, a charge generator layer, a charge transport layer comprising a...
4917980 Photoresponsive imaging members with hole transporting polysilylene ceramers  
A charge transporting polysilylene-ceramer for use in layered imaging members comprised of ##STR1## wherein R1 l and R2 are independently selected from the group consisting of alkyl, aryl,...
4891290 Photosensitive material for electrophotography  
A photosensitive material for electrophotography is provided, which comprises in sequence an aluminum substrate, a charge transport layer, a hole injection layer, a charge generation layer, and a...
4880717 Photosensitive body for electrophotography with protective and intermediate layers  
The present invention provides a photosensitive body of Se-based function separation type to be used in electrophotographic equipment which employs long wavelength light for writing. Such a body...
4877700 Layered electrophotographic recording material containing selenium, arsenic and bismuth or tellurium  
An electrophotographic recording material comprises a dual photoconductive layer applied to an electrically conductive substrate. The lower layer disposed on the substrate is made of an amorphous...
4868077 Layered photosensitive material for electrophotography comprising selenium, arsenic and tellurium  
A photosensitive material for electrophotography is provided, which comprises in sequence an electroconductive substrate, a carrier transport layer composed of a selenium-arsenic alloy, a carrier...
4837099 Multilayer photoconductor for electrophotography  
A photoconductor for electrophotography has a unique electron injection-limiting layer of either pure selenium or a selenium-arsenic alloy containing less than 10 weight % arsenic formed between...
4822703 Photoresponsive imaging members with polygermanes  
A layered photoresponsive imaging member comprised of a supporting substrate, a photogenerating layer, and a hole transport layer in contact therewith, which layer is comprised of polygermane...
4801515 Photosensitive member having an overcoat layer  
A photosensitive member of the present invention comprises an electrically conductive substrate, a photoconductive layer and an overcoat layer.The photoconductive layer comprises selenium-arsenic...
4786570 Layered, flexible electrophotographic imaging member having hole blocking and adhesive layers  
A flexible electrophotographic imaging member is disclosed which comprises a flexible substrate having an electrically conductive surface, a hole blocking layer comprising an aminosilane reaction...
4780385 Electrophotographic imaging member containing zirconium in base layer  
An electrophotographic imaging member is disclosed having an imaging surface adapted to accept a negative electrical charge, the electrophotographic imaging member comprising a metal ground plane...
4780386 Selenium alloy treatment  
A process for preparing an electrophotographic imaging member comprising providing large particles of an alloy comprising selenium, tellurium and arsenic, the large particles having an average...
4772525 Photoresponsive imaging members with high molecular weight polysilylene hole transporting compositions  
Photoresponsive imaging members comprised of hole transporting polysilylene compounds with a single peak molecular weight distribution, and wherein the polysilylenes selected have excluded...
4717635 Electrophotographic recording material  
An electrophotographic recording material, composed of an electrically conductive substrate; a first layer provided on the electrically conductive substrate and composed of an amorphous...
4661428 Composite photosensitive elements for use in electrophotography and process of forming images using same  
A composite photosensitive element for use in electrophotography which comprises an electrically conductive substrate and a first photoconductive layer and second photoconductive layer laminated...
4639402 Photoreceptor containing selenium particles coated with a reaction product of a hydrolyzed silane  
An electrostatographic imaging member comprising a photoconductive layer comprising an organic resin binder and photoconductive particles comprising selenium coated with thin layer of a reaction...
4619880 Electrophotographic light sensitive material contains hydrazone compound  
The integrated type electrophotographic light-sensitive material is disclosed, the material comprising two layers comprising (1) an electric charge generating layer containing an electric charge...
4618551 Photoresponsive imaging members with polysilylenes hole transporting compositions  
Disclosed is a polysilylene hole transporting compound for use in layered imaging members comprised of ##STR1## wherein R1,R 2, R3, R4, R5, and R6 are independently selected from the group...
4617248 Doped photoconductive film including selenium and tellurium  
A structure of a photoconductive film related to a target of an image pickup tube of the photo conductivity type is disclosed. This photoconductive film is formed from mainly Se and Te is added in...
4582772 Layered photoconductive imaging devices  
This invention is directed to an improved photoresponsive device comprised in the order stated of (1) a substrate, (2) a transmissive semi-conductive layer selected from the group consisting of...
4572883 Electrophotographic imaging member with charge injection layer  
An electrophotographic imaging member is described comprising a substrate, a layer comprising an amorphous hole injecting material selected from the group consisting of halogen doped selenium,...
4569891 Photoconductive material  
A multi-layered photoconductive material which comprises first layers containing at least one VIb chalcogen element chosen from S, Se and Te and second layers containing at least one IIb element...
4559286 Mixed squaraine photoconductive compositions  
An improved process for the preparation of mixed squaraine compositions which comprises reacting squaric acid, an aromatic amine, and a fluoroaniline, in the presence of an aliphatic alcohol, and...
4552822 Photoconductive devices with hydroxy containing squaraine compositions  
Photoresponsive devices, including layered photoresponsive devices comprised of a photoconductive layer of squaraine compositions of the following formula: ##STR1## wherein R1, R2, and R3 are...
4535468 Image converted for X-ray equipment and the like  
The invention relates to a photographic apparatus useable, for example, in medical radiodiagnostics, with a three-layer system lying between two electrodes, to which a d-c voltage is applied. The...
4518671 Electrophotographic photosensitive Se or Se alloy doped with oxygen  
An electrophotographic photosensitive member has a selenium type photoconductive layer containing 8000 ppm or less oxygen based on selenium. The member is free from a fatigue due to repeated use.
4457994 Photoresponsive device containing arylmethanes  
An improved layered photoresponsive device comprised of a substrate, a photogenerating layer, comprised of inorganic photoconductive composition, or an organic photoconductive composition, a...
4442192 Photoresponsive device containing an electron donating layer  
This invention relates to an improved layered overcoated photoresponsive imaging device useful in a xerographic imaging process employing a single charging step, which device is comprised in the...
4418136 Electrophotographic element comprises arsenic selenide doped with Bi  
An electrophotographic element comprising a photoconductive layer consisting essentially of a Bi-containing As2 Se3 layer on an electrically conductive substrate.
4410616 Multi-layered ambipolar photoresponsive devices for electrophotography  
This invention is directed to an improved ambipolar photoresponsive device useful in imaging systems for the production of positive images, from either positive or negative originals, which device...
4407918 Electrophotographic process and apparatus for making plural copies from a single image  
A photosensitive member is formed by applying on an electrically conductive substrate, a first photoconductive layer sensitive to a visible light, an insulating charge retentive layer, and a...
4385105 Electrophotographic image carrier structure  
An electrophotographic image carrier structure comprises an electrically conductive substrate, a selenium-containing photoconductive layer including more than 35% by weight arsenic, a polyvinyl...
4384033 Process of synthesizing and recording images  
A photographic member includes an electrically conductive substrate which carries a pair of photoconductive layers thereon, which are charged to opposite polarities from each other, as will be...

Matches 1 - 50 out of 92 1 2 >