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| Number | Title | Issue Date |
| 8431292 | Charge blocking layer and coating solution for forming the same The present embodiments are generally directed to an improved imaging member exhibiting various advantages over conventional imaging members. More specifically, the present embodiments are directed to an improved charge blocking layer formed from an aqueous-based co... | 04/30/2013 |
| 8399165 | 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 environments, with which image defects such as black spots or color spo... | 03/19/2013 |
| 8394560 | Imaging members having an enhanced charge blocking layer The presently disclosed embodiments are directed to layer(s) that are useful in imaging apparatus members and components, for use in electrophotography, including digital, apparatuses. More particularly, the present embodiments provide the negatively charged electro... | 03/12/2013 |
| 8273512 | Photoreceptor interfacial layer The presently disclosed embodiments relate generally to layers that are useful in imaging apparatus members and components, for use in electrostatographic, including digital, apparatuses. Embodiments pertain to an improved electrostatographic imaging member comprisi... | 09/25/2012 |
| 8227155 | Epoxysilane hole blocking layer photoconductors A photoconductor that includes, for example, a substrate, an optional ground plane layer, an undercoat layer thereover, wherein the undercoat layer contains an aminosilane and an epoxysilane, a photogenerating layer, and at least one charge transport layer. ... | 07/24/2012 |
| 8137877 | Electrophotographic photoreceptor having excellent stability in terms of electrical properties and interlayer adhesion strength and electrophotographic imaging apparatus employing the same An electrophotographic photoreceptor including an undercoat layer and a photosensitive layer that are sequentially formed on an electrically conductive substrate, wherein the undercoat layer has a structure in which metal oxide particles and dialkylcitrate-chelated ... | 03/20/2012 |
| 8053152 | Boron containing hole blocking layer photoconductor A photoconductor that includes a supporting substrate, a ground plane layer, a hole blocking layer, a photogenerating layer, and at least one charge transport layer, and where the hole blocking layer includes a boron containing compound. ... | 11/08/2011 |
| 7964328 | Condensation polymer photoconductive elements The present invention relates to photoconductive elements having an electrically conductive support, an electrical barrier layer and, disposed over the conductive layer, a charge generation layer capable of generating positive charge carriers when exposed to actinic... | 06/21/2011 |
| 7871747 | Electrophotographic photoconductor having charge blocking and moire preventing layers To provide an electrophotographic photoconductor that has a layer containing a compound represented by the following general formula (1), and an image forming apparatus using the electrophotographic photoconductor. ... | 01/18/2011 |
| 7846628 | Hole blocking layer containing photoconductors A photoconductor that includes a substrate; an undercoat layer thereover wherein the undercoat layer comprises a metal oxide, an electron donor electron acceptor charge transfer complex; a photogenerating layer; and at least one charge transport layer. ... | 12/07/2010 |
| 7670743 | Image forming method An image is formed by projecting an image by way of an image irradiating device onto an image bearing member configured to operate at a linear velocity of at least 300 mm/sec, and which is constructed of(i) an electroconductive substrate having an image bearing surf... | 03/02/2010 |
| 7579127 | Blocked polyisocyanates incorporating planar electron-deficient tetracobonylbisimide moieties The present invention is a photoconductive element containing an electrically conductive support, an electrical barrier layer disposed over said electrically conductive support and a charge generation layer capable of generating positive charge carriers when exposed... | 08/25/2009 |
| 7541123 | Imaging member An imaging member includes an electrically conductive layer; a positive charge blocking layer, an imaging layer, and an undercoat layer. The undercoat layer is intermediate the imaging layer and the electrically conductive layer. The undercoat layer includes a film ... | 06/02/2009 |
| 7541124 | Condensation polymer photoconductive elements The present invention relates to photoconductive elements having an electrically conductive support, an electrical barrier layer and, disposed over the barrier layer, a charge generation layer capable of generating positive charge carriers when exposed to actinic ra... | 06/02/2009 |
| 7534538 | Coating liquid for intermediate layer in electrophotographic photoconductor, electrophotographic photoconductor utilizing the same, image forming apparatus and process cartridge for image forming apparatus A coating liquid for an intermediate layer of an electrophotographic photoconductor comprises at least one of alcohol solvents; and N-methoxymethylated nylon, in which the N-methoxymethylated nylon has solution viscosity within a range from 43 mPa·s to 50 mPa·s wh... | 05/19/2009 |
| 7527905 | Imaging member An imaging member comprising a charge generating layer, a charge transport layers and an optional barrier layer between the charge generating layer and the charge transport layer. The charge transport layer may comprise a first and a second or more layers, wherein t... | 05/05/2009 |
| 7459251 | Imaging member An imaging member comprising a barrier or under-layer intermediate a photogenerating layer and charge transport layer to reduce charge deficiency spots. The barrier under-layer comprises a film forming polymer binder selected from a conductive polymer binder, a non-... | 12/02/2008 |
| 7442479 | Electrophotographic photoreceptor, and image forming apparatus and process cartridge using the electrophotographic photoreceptor A photoreceptor including at least an electroconductive substrate, and a charge blocking layer, a moiré preventing layer, and a photosensitive layer, which are located overlying the electroconductive substrate in this order, wherein the photosensitive layer include... | 10/28/2008 |
| 7371492 | Vinyl polymer photoconductive elements The present invention is a photoconductive element that includes an electrically conductive support, an electrical barrier layer disposed over said electrically conductive support, and disposed over said barrier layer, a charge generation layer capable of generating... | 05/13/2008 |
| 7364824 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus An electrophotographic photosensitive member, a process cartridge and an electrophotographic apparatus are provided which not only secure mechanical strength sufficiently but also bring a vast improvement in charge transport performance and which can well satisfy el... | 04/29/2008 |
| 7354685 | Photoconductive imaging members A photoconductive member comprised of a hole blocking layer, a photogenerating layer, and a charge transport layer comprised of a polymer with a low dielectric constant and a charge transport component. ... | 04/08/2008 |
| 7348115 | Electrophotographic photoconductor, process cartridge, image forming apparatus and image forming method An electrophotographic photoconductor, including an electrically conductive substrate, an undercoat layer containing a filler and a binder resin and provided on the substrate, and a photoconductive layer provided on the undercoat layer and containing a binder resin.... | 03/25/2008 |
| 7341812 | Photosensitive member having two layer undercoat An imaging member having a substrate, an electroconducting layer having an electroconducting particle of a core and outer shell, an interfacial layer, and a charge transport layer with charge transport materials dispersed therein. ... | 03/11/2008 |
| 7338738 | Electrophotographic photosensitive member and process for producing the same In an electrophotographic photosensitive member having a support at least the surface of which is conductive, and a photoconductive layer formed thereon containing an amorphous material composed chiefly of silicon, the photoconductive layer has two or more layer reg... | 03/04/2008 |
| 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 siloxane, and at least one polymer binder containing epoxy groups. ... | 01/01/2008 |
| 7312007 | Photoconductive imaging members A photoconductive member containing a hole blocking layer, a photogenerating layer, and a charge transport layer, and wherein the hole blocking layer contains a metallic component like a titanium oxide and a polymeric binder. ... | 12/25/2007 |
| 7267914 | Electrophotographic photoconductor, process cartridge, image forming apparatus and image forming method An electrophotographic photoconductor, including an electrically conductive substrate, an undercoat layer containing a filler and a binder resin and provided on the substrate, and a photoconductive layer provided on the undercoat layer and containing a binder resin.... | 09/11/2007 |
| 7267915 | Photoconductive element having an amorphous polymeric barrier layer This invention relates to electrophotography and to amorphous condensation polymers comprising a polyester-co-imide, polyester-co-imide, polyesterionomer-co-imide, or polyamide-co-imide as a polymeric electrical charge barrier layer. ... | 09/11/2007 |
| 7258958 | Organic photoreceptor, process cartridge, image forming apparatus, and image forming method An organic photoconductor, comprises a conductive base, a charge generating lager and a charge transport layer, wherein the charge generating lager and the charge transport layer are provided in this order on the conductive base, wherein when a curve is drawn by plo... | 08/21/2007 |
| 7255918 | Coated paper sheet A coated paper sheet provided with a coating layer formed on a paper sheet substrate and containing a pigment and a binder and optionally a pre-coated polyacrylamide-containing anionic acrylic resin layer formed between the substrate and coating layer, and having a ... | 08/14/2007 |
| 7247228 | Method for preparing a carrier for a photoconductor for the formation of an electrophotographic recording element and a recording element formed accordingly A carrier or substrate for a photoconductor to be used for the formation of an electrophotographic recording element, particularly an imaging drum for an electrophotographic printing press, wherein the carrier is made of a metal or a metal alloy, preferably of alumi... | 07/24/2007 |
| 7244485 | Imageable seamed belts having polyamide adhesive between interlocking seaming members A seamed flexible belt having a substrate and a seam having interlocking seam members, wherein the interlocking seam members are held together by an adhesive having polyamide and an optional electrically conductive filler, for use in electrostatographic, contact ele... | 07/17/2007 |
| 7232633 | Imaging member having inorganic material filler surface grafted with charge transport moiety An imaging member with a surface-grafted material having an inorganic material, a linking group, and a charge transport moiety capable of transporting holes or electrons, and the charge transport moiety is grafted to a surface of the inorganic material via the linki... | 06/19/2007 |
| 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 transport compound, a curing agent and a solvent. ... | 06/12/2007 |
| 7229729 | Electrophotographic photoreceptor, process cartridge, image forming apparatus and image forming method An electrophotographic photoreceptor having an intermediate layer in which the intermediate layer contains a compound formed from a composition containing the following components X, Y and Z. Component X: Inorganic oxide network fo... | 06/12/2007 |
| 7226712 | Photoconductive imaging members having pyrolyzed polyacrylonitrile hole blocking layer A photoconductive imaging member comprised of an optional supporting substrate, a hole blocking layer thereover, a photogenerating layer, and a charge transport layer, and wherein the hole blocking layer is comprised of a pyrolyzed polyacrylonitrile. ... | 06/05/2007 |
| 7211358 | Image cylinder sleeve for an electrophotographic machine and method for producing same A photoconductive member for use in an electrophotographic machine includes a substrate having an inside and outside surface. An inner smoothing layer is disposed over the inside surface of the substrate thereby improving the compatibility of the photoconductive mem... | 05/01/2007 |
| 7205081 | Imaging member An imaging method utilizing an imaging member containing a supporting substrate, a layer of a charge carrier injecting surface, a hole blocking layer, an optional adhesive layer, a layer of a charge carrier transport material, a layer of an charge carrier generating... | 04/17/2007 |
| 7187890 | Ion conductive roller and image forming apparatus employing ion conductive roller An image forming apparatus includes a movable member; a roller contacted to the movable member, the roller having an elastic layer contacted to the movable member, the elastic layer having an ion electroconductivity and having a hardness of not less than 20° and no... | 03/06/2007 |
| 7184676 | Charging device and image forming apparatus A charging device including: a first charger which charges a member to be charged, the first charger having conducting particles which come into contact with the member to be charged; a second charger which charges the member to be charged in a same polarity as char... | 02/27/2007 |
