Inorganic Containing Patents (Class 430/65)
  • Patent number: 10892302
    Abstract: There is provided an imaging element that has a stacked structure of a first electrode, an organic photoelectric conversion layer, and a second electrode. A first organic material layer and a second organic material layer are formed between the first electrode and the organic photoelectric conversion layer from the first electrode side.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: January 12, 2021
    Assignee: SONY CORPORATION
    Inventors: Masakazu Muroyama, Masashi Bando
  • Patent number: 10838314
    Abstract: The electrophotographic photosensitive member includes an undercoat layer and a surface layer on or above a support in this order, in which the undercoat layer contains metal oxide particles and a specific binder resin, the surface layer contains a charge transporting substance, fluororesin particles, and a specific binder resin, an arithmetic average roughness Ra of a surface of the undercoat layer is 0.15 ?m or less, a refractive index (a) of the metal oxide particles and a refractive index (b) of the binder resin contained in the undercoat layer satisfy a specific relationship, and a refractive index (c) of the binder resin contained in the surface layer and a refractive index (d) of the fluororesin particles satisfy a specific relationship.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: November 17, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Tatsuya Ikezue, Kumiko Takizawa, Ikuyo Kuroiwa, Kan Tanabe, Tsuyoshi Shimada, Haruhiko Mitsuda, Takanori Ueno
  • Patent number: 9791792
    Abstract: An electrophotographic photosensitive member includes a surface layer with a hexagonal boron nitride dispersed therein. The hexagonal boron nitride has a graphitization index (GI) of at least 3.0 and less than 15.0.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: October 17, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yohei Miyauchi, Kimihiro Yoshimura, Harunobu Ogaki, Atsushi Okuda, Yuki Yamamoto, Wataru Kitamura, Mai Murakami
  • Patent number: 9383663
    Abstract: An electrophotographic photosensitive member includes a support, an undercoat layer formed on the support, and a photosensitive layer formed on the undercoat layer. The undercoat layer is an electron transporting layer and contains a metal salt of organic acid having at least one metal element selected from Fe, Co, Ni, Cu, and Zn.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: July 5, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yota Ito, Michiyo Sekiya, Kunihiko Sekido, Atsushi Okuda, Nobuhiro Nakamura, Kazunori Noguchi, Daisuke Tanaka, Kazumichi Sugiyama, Yuka Ishiduka
  • Patent number: 9337470
    Abstract: A method of drying casted slurries that includes calculating drying conditions from an experimental model for a cast slurry and forming a cast film. An infrared heating probe is positioned on one side of the casted slurry and a thermal probe is positioned on an opposing side of the casted slurry. The infrared heating probe may control the temperature of the casted slurry during drying. The casted slurry may be observed with an optical microscope, while applying the drying conditions from the experimental model. Observing the casted slurry includes detecting the incidence of micro-structural changes in the casted slurry during drying to determine if the drying conditions from the experimental model are optimal.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: May 10, 2016
    Assignee: UT-BATTELLE, LLC
    Inventors: Beth L. Armstrong, Claus Daniel, Jane Y. Howe, James O. Kiggans, Jr., Adrian S. Sabau, David L. Wood, III, Sergiy Kalnaus
  • Patent number: 9029054
    Abstract: An electron transporting layer is a cured layer including carbon atoms, nitrogen atoms and oxygen atoms. When ratios of the number of carbon atoms, ratios of the number of nitrogen atoms, and ratios of the number of oxygen atoms are analyzed at 10 points by an X-ray photoelectron spectroscopy (ESCA), the respective standard deviations, ?(C), ?(N) and ?(O), of the ratios of the number of carbon atoms, the ratios of the number of nitrogen atoms and the ratios of the number of oxygen atoms satisfy the following expressions (1) to (3): ?(C)?1.5??(1), ?(N)?1.5??(2), and ?(O)?1.5??(3).
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: May 12, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Atsushi Okuda, Michiyo Sekiya, Kunihiko Sekido, Kenichi Kaku, Nobuhiro Nakamura, Yota Ito, Yuka Ishiduka, Hiroyuki Tomono
  • Publication number: 20150099218
    Abstract: An undercoat layer of an electrophotographic photosensitive member includes a cured product having electron transportability and a particle including titanium oxide, and a surface layer of the electrophotographic photosensitive member includes a cured product of a composition including a hole transporting substance having a polymerizable functional group and a photopolymerization initiator.
    Type: Application
    Filed: October 8, 2014
    Publication date: April 9, 2015
    Inventors: Takeshi Murakami, Hiroyuki Tomono, Kunihiko Sekido, Atsushi Okuda
  • Patent number: 8956792
    Abstract: Provided is an electrophotographic photosensitive member which is excellent in terms of both continuous reduction of contact stress with contact members and the like and potential stability during repeated use. A charge transport layer which serves as a surface layer of an electrophotographic photosensitive member has a matrix-domain structure including a matrix containing a component [?] (polycarbonate resin D having a specific repeating structural unit) and a charge-transporting substance and domains containing a component [?] (polycarbonate resin A having a repeating structural unit including a specific siloxane moiety).
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: February 17, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Atsushi Okuda, Harunobu Ogaki, Kazunori Noguchi, Takashi Anezaki, Kazuhisa Shida, Shio Murai
  • Patent number: 8936892
    Abstract: In order to provide an electrophotographic photosensitive member in which the dark-area potential does not easily change even when repeatedly used for a long period of time under a normal temperature/low humidity environment, a method of producing the electrophotographic photosensitive member, and a process cartridge and an electrophotographic apparatus, each comprising the electrophotographic photosensitive member, an undercoat layer of the electrophotographic photosensitive member is incorporated with an organic resin, a metal oxide particle, and a specific compound (phosphine oxide compound).
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: January 20, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenichi Kaku, Wataru Kitamura, Mai Murakami
  • Patent number: 8911922
    Abstract: A coating liquid for an undercoat layer of an electrophotographic photoreceptor which is formed by sequentially stacking the undercoat layer and a photosensitive layer on an electrically conductive support, wherein the coating liquid comprises titanium oxide microparticles and silicon nitride microparticles as an inorganic compound, a binder resin and an organic solvent.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: December 16, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Satoshi Katayama, Kohichi Toriyama, Mami Adachi, Kotaro Fukushima, Junichi Washo
  • Patent number: 8865381
    Abstract: An electrophotographic photosensitive member is provided in which both a long-term potential variation and a short-term potential variation are suppressed, a method for producing the electrophotographic photosensitive member, and a process cartridge and an electrophotographic apparatus each having the electrophotographic photosensitive member are also provided. An intermediate layer of the electrophotographic photosensitive member is formed by applying a coating liquid for the intermediate layer, which contains an organic resin and a rutile-type acidic titania sol containing tin, and drying the applied coating liquid.
    Type: Grant
    Filed: April 20, 2010
    Date of Patent: October 21, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masato Tanaka, Yuka Ishiduka
  • Patent number: 8808954
    Abstract: The present invention provides an electrophotographic photoconductor that can improve unevenness in image density and reduce image defects such as fogging and dots. The electrophotographic photoconductor includes a conductive support, an intermediate layer, and a photosensitive layer. The intermediate layer includes metal oxide particles surface-treated with a titanium chelate compound represented by the following formula (1): Ti(OR)n(L)4-n??(1) wherein R at each occurrence independently represents a C1-16 aliphatic hydrocarbon group; L at each occurrence independently represents a ligand derived from a chelating agent selected from the group consisting of ?-ketoester represented by the following formula (1a): ?-diketone represented by the following formula (1b): and a C3-10 alkylene glycol; n represents an integer of 1 to 3; if n is 2 or more, two Rs may be coupled to each other.
    Type: Grant
    Filed: May 8, 2012
    Date of Patent: August 19, 2014
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Mayuko Matsusaki, Tomoo Sakimura, Shinichi Hamaguchi
  • Patent number: 8808953
    Abstract: An electrophotographic photoreceptor includes a conductive support, and an undercoat layer, a charge generation layer, and a charge transport layer that are provided in this order on the conductive support, wherein the undercoat layer includes at least metallic oxide particles, a reactive acceptor substance including an anthraquinone structure expressed by the following Formula 1, and a binder resin, the charge generation layer includes hydroxygallium phthalocyanine as a charge generation material, and a reflectance of incident light having a wavelength of 780 nm on a surface of the charge generation layer when the charge transport layer is removed is 17% or greater: wherein the anthraquinone structure expressed by Formula 1 is bonded to another structure at a position of *, and thus forms the reactive acceptor substance, and in Formula 1, n1 represents an integer of 1 to 7.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: August 19, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Satoya Sugiura, Shigeto Hashiba, Kazuhiro Koseki, Hirofumi Nakamura, Kenta Ide, Akihiro Nonaka, Kosuke Narita, Akihiro Kawasaki
  • Patent number: 8802337
    Abstract: An electrophotographic photoreceptor includes a support; an undercoat layer which is provided on the support and contains at least a binder resin, metal oxide particles, and an electron-accepting compound having an anthraquinone structure, in which a content of the electron-accepting compound is from 0.5% by weight to 1.5% by weight with respect to the metal oxide particles and a contact angle of the metal oxide particles with respect to water is from 7° to 12°; and a photosensitive layer which is provided on the undercoat layer.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: August 12, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Akihiro Kawasaki, Shigeto Hashiba, Hirofumi Nakamura, Hidemi Nukada, Satoya Sugiura
  • Patent number: 8735031
    Abstract: An electrophotographic photoreceptor includes an electroconductive substrate; an undercoat layer provided on the electroconductive substrate and composed of: metal oxide fine particles including particles of at least one metal oxide and at least one organic compound provided on the particles of the at least one metal oxide as a surface treatment; and a copolymer resin synthesized by copolymerization of essential constituent monomers composed of a dicarboxylic acid, a diol, a triol and a diamine; and a photosensitive layer laminated on the undercoat layer. The undercoat layer permits (a) attaining stable electric potential characteristics in all environments ranging from low temperature and low humidity environments to high temperature and high humidity environments, (b) suppressing the occurrence of printing defects and density differences, and (c) simultaneously attaining transfer restorability and restorability from intense light-induced fatigue even in a wide variety of usages and operation environments.
    Type: Grant
    Filed: November 27, 2009
    Date of Patent: May 27, 2014
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Kazuki Nebashi, Yoichi Nakamura, Ikuo Takaki, Seizo Kitagawa, Shinjiro Suzuki
  • Patent number: 8697322
    Abstract: A photoreceptor comprising a composite structured organic film comprising a plurality of segments and a plurality of linkers arranged as a covalent organic framework, wherein the structured organic film includes a secondary component and may be a multi-segment thick structured organic film.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: April 15, 2014
    Assignee: Xerox Corporation
    Inventors: Adrien P. Cote, Matthew A. Heuft
  • Patent number: 8673524
    Abstract: An electrophotographic photoreceptor includes a conductive substrate; an undercoat layer which is provided on the conductive substrate and includes a binder resin and metal oxide particles of which the surfaces are treated with at least two kinds of coupling agents of a first coupling agent having an electron-donating group and a second coupling agent having an electron-accepting group; and a photosensitive layer which is provided on the undercoat layer.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: March 18, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Hirofumi Nakamura
  • Patent number: 8563204
    Abstract: A photoconductor containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component, and wherein the photogenerating layer contains a hydroxygallium phthalocyanine, a hydroxyaluminum phthalocyanine, a polymeric binder, and a silanol.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: October 22, 2013
    Assignee: Xerox Corporation
    Inventor: Jin Wu
  • Patent number: 8546050
    Abstract: The present invention is an electrophotographic photosensitive member including a conductive support, an intermediate layer which is placed on the conductive support, and a photosensitive layer which is placed on the intermediate layer, wherein the intermediate layer comprises a metal-oxide particle and a compound having a structure represented by the following formula (1):
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: October 1, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihiro Maruyama, Kunihiko Sekido, Michiyo Sekiya, Hideaki Nagasaka, Shinji Takagi
  • Patent number: 8535860
    Abstract: A coating liquid for an undercoat layer of an electrophotographic photoreceptor which is formed by sequentially stacking the undercoat layer and a photosensitive layer on an electrically conductive support, wherein the coating liquid comprises titanium oxide microparticles and silicon nitride microparticles as an inorganic compound, a binder resin and an organic solvent.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: September 17, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Satoshi Katayama, Kohichi Toriyama, Mami Adachi, Kotaro Fukushima, Junichi Washo
  • Patent number: 8524431
    Abstract: The electrophotographic photosensitive member includes a conductive support and an intermediate layer, a charge generation layer and a charge transport layer, which are provided on the conductive support in this order. The intermediate layer contains an ethylene-acrylic acid binary copolymer and a polyolefin resin in which repeating structural units are contained in a particular ratio.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: September 3, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hideaki Nagasaka, Kunihiko Sekido, Shinji Takagi, Akihiro Maruyama, Michiyo Sekiya
  • Patent number: 8512923
    Abstract: An electrophotographic photosensitive member is disclosed which has a change layer consisting of five or more a-SiC intermediate layers, provided between an a-Si photoconductive layer and an a-SiC surface layer. Where two layers contiguous to each other in which C/(Si+C) is from 0.35 to 0.65 are selected from among the a-SiC intermediate layers included in the change layer, the rate of increase between the C/(Si+C) of an a-SiC intermediate layer on the photoconductive layer side and the C/(Si+C) of an a-SiC intermediate layer on the surface layer side (i.e., the rate of increase between layers) is 19% or less.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: August 20, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuto Hosoi, Jun Ohira
  • Patent number: 8512922
    Abstract: Aspects of the present invention provide an electrophotographic photosensitive member in which an intermediate layer contains metal oxide particles, an organic resin, and a specific compound (fluorenone derivative), and a process cartridge and an electrophotographic apparatus including the electrophotographic photosensitive member.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: August 20, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuka Ishiduka, Wataru Kitamura, Kenichi Kaku, Mai Murakami
  • Patent number: 8507162
    Abstract: An electrophotographic photosensitive member comprises a conductive support, an intermediate layer provided on the conductive support, and a photosensitive layer provided on the intermediate layer, in which at least one of the intermediate layer and the photosensitive layer comprises a compound represented by the following formula (1):
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: August 13, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihiro Maruyama, Kunihiko Sekido, Hideaki Nagasaka, Shinji Takagi
  • Patent number: 8465888
    Abstract: A photoconductor comprising a substrate, an undercoat layer, a photogenerating layer and a charge transport layer is described. The undercoat layer is disposed on the substrate and comprises a metal oxide, and a mixture of a phenolic resin and a cyclohexanecarboxylate.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: June 18, 2013
    Assignee: Xerox Corporation
    Inventors: Yuhua Tong, Jin Wu, Edward F. Grabowski, Marc J. Livecchi
  • Patent number: 8465890
    Abstract: An electrophotographic photoconductor comprising a conductive support, an undercoat layer and a photosensitive layer, the undercoat layer and the photosensitive layer being formed on the conductive support in sequence, wherein the undercoat layer contains a binder resin, titanium oxide particles surface-treated with at least anhydrous silicon dioxide and titanium oxide particles surface-treated with at least hydrous silicon dioxide.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: June 18, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Satoshi Katayama
  • Publication number: 20130121727
    Abstract: In order to provide an electrophotographic photosensitive member in which the dark-area potential does not easily change even when repeatedly used for a long period of time under a normal temperature/low humidity environment, a method of producing the electrophotographic photosensitive member, and a process cartridge and an electrophotographic apparatus, each comprising the electrophotographic photosensitive member, an undercoat layer of the electrophotographic photosensitive member is incorporated with an organic resin, a metal oxide particle, and a specific compound (phosphine oxide compound).
    Type: Application
    Filed: July 20, 2011
    Publication date: May 16, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kenichi Kaku, Wataru Kitamura, Mai Murakami
  • Patent number: 8404411
    Abstract: An electrophotographic photoreceptor having high sensitivity and hardly affected by the transfer in an electrophotographic process is provided. The electrophotographic photoreceptor includes an undercoat layer containing metal oxide particles and a binder resin and a photosensitive layer disposed on the undercoat layer, wherein the metal oxide particles have a volume average particle diameter of 0.1 ?m or less and a 90% cumulative particle diameter of 0.3 ?m or less which are measured by a dynamic light-scattering method in a liquid of the undercoat layer dispersed in a solvent mixture of methanol and 1-propanol at a weight ratio of 7:3, and the photosensitive layer contains a binder resin having an ester bond.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: March 26, 2013
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Teruyuki Mitsumori, Kozo Ishio, Hiroe Fuchigami, Hiroaki Takamura, Yasunori Kawai
  • Patent number: 8399164
    Abstract: A photoconductor that includes, for example, a supporting substrate, an undercoat layer thereover wherein the undercoat layer contains a metal oxide a phenolic resin and a dendritic polyester polyol; a photogenerating layer; and at least one charge transport layer.
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: March 19, 2013
    Assignee: Xerox Corporation
    Inventor: Jin Wu
  • Patent number: 8394559
    Abstract: Provided are a coating liquid for forming an undercoat layer exhibiting high stability, a process for forming the coating liquid, a high-performance electrophotographic photoreceptor that is capable of forming a high-quality image under various use environments and exhibiting reduced image defects such as black spots and color spots, and an image-forming apparatus and electrophotographic cartridge including the electrophotographic photoreceptor. In the coating liquid for forming an undercoat layer of an electrophotographic photoreceptor containing metal oxide particles and a binder resin, the metal oxide particles have a number average particle diameter of 0.10 ?m or less and a 10% cumulative particle diameter of 0.060 ?m or less which are measured by a dynamic light-scattering method in the coating liquid for forming an undercoat layer.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: March 12, 2013
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Teruyuki Mitsumori, Shunichiro Kurihara, Hiroe Fuchigami
  • Patent number: 8367286
    Abstract: A photoconductor that includes, for example, a substrate, an undercoat layer thereover wherein the undercoat layer contains a metal oxide dispersed in a mixture of a urea formaldehyde resin and a phenolic formaldehyde resin; a photogenerating layer; and at least one charge transport layer.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: February 5, 2013
    Assignee: Xerox Corporation
    Inventor: Jin Wu
  • Patent number: 8361686
    Abstract: An electrophotographic photoreceptor comprising at least a photosensitive layer on an electroconductive substrate, a surface layer of the electrophotographic photoreceptor including a fluorinated alkyl group-containing copolymer having repeating units represented by the following formulae A and B, and fluorine-based resin particles: wherein in Formulae A and B, l, m and n each independently represent a integer number of 1 or more; p, q, r and s each independently represent 0 or an integer of 1 or more; t represents an integer of from 1 to 7; R1, R2, R3, and R4 each independently represent a hydrogen atom or an alkyl group; X represents an alkylene chain, a halogen-substituted alkylene chain, —S—, —O—, —NH— or a single bond; Y represents an alkylene chain, a halogen-substituted alkylene chain, —(CzH2z-1(OH))— or a single bond; and z represents an integer of 1 or more.
    Type: Grant
    Filed: October 7, 2008
    Date of Patent: January 29, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Hidemi Nukada, Shinya Yamamoto, Masaru Miura, Hitoshi Takimoto, Takahiro Suzuki, Tetsunao Koujiri
  • Patent number: 8273512
    Abstract: 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 comprising an interfacial layer further comprising an opaque semi-crystalline polyester resin that is also a hot-melt adhesive to prevent light transmission to the substrate and thus significantly reduce “plywood effect,” a print quality defect.
    Type: Grant
    Filed: June 16, 2009
    Date of Patent: September 25, 2012
    Assignee: Xerox Corporation
    Inventors: Yuhua Tong, Edward F. Grabowski, Jin Wu
  • Patent number: 8257892
    Abstract: Embodiments relate generally to an imaging member that facilitates removal of the imaging member coating layers disposed over the imaging member and environmentally or “green” methods for using the same. More specifically, the present embodiments disclose an electrophotographic photoreceptor that includes a specifically formulated undercoat layer that allows easy removal of the photoreceptor layers disposed on top of the undercoat layer. The present embodiments provide a simple yet efficient method for reclaiming recycling or remanufacturing electrophotographic photoreceptors.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: September 4, 2012
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Yuhua Tong, Helen R. Cherniack, Edward F. Grabowski, Kent J. Evans, Nancy L. Belknap
  • Patent number: 8236468
    Abstract: In the present invention, an objective is to provide an organic photoreceptor exhibiting extremely high moire resistance, but also to provide an organic photoreceptor capable of acquiring a high quality image to realize no generation of image defects such as black spots or the like. Also disclosed is an organic photoreceptor possessing a conductive support and layered thereon, an intermediate layer, a charge generation layer and a charge transport layer in this order, wherein the intermediate layer possesses porous silica in which metal oxide is encapsulated.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: August 7, 2012
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventor: Eiichi Sakai
  • Patent number: 8168357
    Abstract: A photoconductor that includes a photogenerating layer and a charge transport layer containing a charge transport component, a fluorinated polymer, and a core shell component, and wherein the core is comprised of a metal oxide and the shell is comprised of silica.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: May 1, 2012
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Kenny-Tuan T Dinh, Linda L Ferrarese, Marc J Livecchi, Edward C Savage, Michael E Zak
  • Patent number: 8158315
    Abstract: A photoconductor that includes a supporting substrate, a hole blocking layer, a ground plane layer, a photogenerating layer, and at least one charge transport layer, and where the hole blocking layer includes a SN containing compound and an aminosilane.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: April 17, 2012
    Assignee: Xerox Corporation
    Inventor: Jin Wu
  • Patent number: 8129081
    Abstract: Exemplary embodiments provide charge generating layers and electrographic imaging members containing the charge generating layers. In various embodiments, an imaging member can be a multilayered photoconductive imaging member with a charge generating layer including, for example, a photogenerating pigment, such as a metal phthalocyanine; a dopant material, such as a multiple halide compound dopant and/or an ether dopant; and a binder or polymer. The imaging members can exhibit high photosensitivity, low residual potential (Verase), and excellent cyclic/environmental stability and can be used as photoreceptors, photosensitive members, and the like, in a machine of copy, printer, fax, scan, multifunction machines, and the like.
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: March 6, 2012
    Assignee: Xerox Corporation
    Inventors: Brian Gilmartin, Liang-Bih Lin
  • Publication number: 20120051786
    Abstract: An electrophotographic photoconductor comprising a conductive support, an undercoat layer and a photosensitive layer, the undercoat layer and the photosensitive layer being formed on the conductive support in sequence, wherein the undercoat layer contains a binder resin, titanium oxide particles surface-treated with at least anhydrous silicon dioxide and titanium oxide particles surface-treated with at least hydrous silicon dioxide.
    Type: Application
    Filed: August 26, 2011
    Publication date: March 1, 2012
    Inventor: Satoshi KATAYAMA
  • Publication number: 20120034556
    Abstract: An electrophotographic photoreceptor includes an electroconductive substrate; an undercoat layer provided on the electroconductive substrate and composed of: metal oxide fine particles including particles of at least one metal oxide and at least one organic compound provided on the particles of the at least one metal oxide as a surface treatment; and a copolymer resin synthesized by copolymerization of essential constituent monomers composed of a dicarboxylic acid, a diol, a triol and a diamine; and a photosensitive layer laminated on the undercoat layer. The undercoat layer permits (a) attaining stable electric potential characteristics in all environments ranging from low temperature and low humidity environments to high temperature and high humidity environments, (b) suppressing the occurrence of printing defects and density differences, and (c) simultaneously attaining transfer restorability and restorability from intense light-induced fatigue even in a wide variety of usages and operation environments.
    Type: Application
    Filed: November 27, 2009
    Publication date: February 9, 2012
    Applicant: FUJI ELECTRIC CO., LTD.
    Inventors: Kazuki Nebashi, Yoichi Nakamura, Seizo Kitagawa, Ikuo Takaki, Shinjiro Suzuki
  • Publication number: 20120003577
    Abstract: An electrophotographic photoreceptor, comprising a conductive support, an undercoat layer and a photosensitive layer formed in sequence, the electrophotographic photoreceptor characterized in that a coating solution for undercoat layer formation for producing the electrophotographic photoreceptor contains at least a binder resin and metal oxide particles surface-treated with anhydrous silicon dioxide.
    Type: Application
    Filed: February 26, 2010
    Publication date: January 5, 2012
    Inventors: Satoshi Katayama, Koichi Toriyama, Kimiko Nishi
  • Patent number: 8043774
    Abstract: The presently disclosed embodiments are directed to layers that are useful in imaging apparatus members and components, for use in electrostatographic, including digital, apparatuses. More particularly, the present embodiments provide a robust undercoat layer comprising TiSi in which the TiO2 to SiO2 ratio falls in a particular ratio range discovered to reduce both plywood print defects as well as abnormal operating parameters and print defects from micro-cracks in the undercoat layer, and methods for making the same.
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: October 25, 2011
    Assignee: Xerox Corporation
    Inventors: Lanhui Zhang, Richardson H. Kilis, Ma Lin, Mark S. Thomas, Kent J. Evans, Adilson P. Ramos
  • Patent number: 8015725
    Abstract: The invention relates to a method and a device, as well as the variants thereof, which operates continuously or discontinuously for the agglomeration and/or drying of powder materials using selective infrared irradiation on a surface which is continually supplied with renewed powder, with or without the spraying of liquids. The process can be performed in sealed conditions or open to the atmosphere, with or without the recovery of volatile components.
    Type: Grant
    Filed: September 21, 2004
    Date of Patent: September 13, 2011
    Assignee: DOS-I Solutions, S.L.
    Inventor: Joan Iglesias Vives
  • Patent number: 7960081
    Abstract: An electrophotographic photoreceptor, including an electroconductive substrate; an intermediate layer, located overlying the electroconductive substrate; and a photosensitive layer, located overlying the intermediate layer, wherein the intermediate layer includes a N-alkoxymethylated nylon including a component having a molecular weight not greater than 5,000 in an amount of from 3 to 10% by weight.
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: June 14, 2011
    Assignee: Ricoh Company, Ltd.
    Inventors: Takeshi Orito, Naohiro Toda, Yasuyuki Yamashita
  • Patent number: 7947418
    Abstract: A photoconductor that includes, for example, a substrate, an undercoat layer thereover wherein the undercoat layer contains a metal oxide dispersed in a mixture of a sulfonamide formaldehyde resin and a phenolic formaldehyde resin; a photogenerating layer, and at least one charge transport layer.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: May 24, 2011
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Marc J Livecchi, Robert W Hedrick, Emily K Redman
  • Patent number: 7932005
    Abstract: A negatively-chargeable electrophotographic photosensitive member, has, between a cylindrical substrate and a photoconductive layer, a first lower-part layer formed of a non-single crystal material containing silicon atoms and a second lower-part layer formed of a non-single crystal material containing silicon atoms, and on its photoconductive layer has an upper-part layer formed of a non-single crystal material containing silicon atoms. The first lower-part layer is a layer containing a periodic-table Group 13 element, and the upper-part layer has a region capable of retaining electrification charges.
    Type: Grant
    Filed: January 7, 2010
    Date of Patent: April 26, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jun Ohira, Makoto Aoki, Kazuto Hosoi
  • Patent number: 7910274
    Abstract: An electrophotographic photosensitive member is provided in which both a potential variation over a long time period and a potential variation within a short time period are suppressed. A method of producing the electrophotographic photosensitive member, and a process cartridge and an electrophotographic apparatus each having the electrophotographic photosensitive member are also provided. In the electrophotographic photosensitive member, an intermediate layer is a layer formed by coating and drying a coating liquid for an intermediate layer, containing an acidic titania sol and an organic resin, and the acidic titania sol is an acidic sol containing anatase-type titanium oxide crystal particles having an average primary particle diameter of 3 nm or more and 9 nm or less.
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: March 22, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masato Tanaka, Takehiko Endo, Atsushi Fujii, Kenichi Kaku, Yuka Ishiduka, Masaki Nonaka
  • Patent number: 7871748
    Abstract: A photoconductor that includes a substrate; an undercoat layer thereover wherein the undercoat layer contains, for example, a metal oxide, and an iron containing compound; a photogenerating layer; and at least one charge transport layer.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: January 18, 2011
    Assignee: Xerox Corporation
    Inventor: Jin Wu
  • Patent number: 7871747
    Abstract: 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. where R1 and R2 independently represent any one of a hydrogen atom, substituted or unsubstituted alkyl group, substituted or unsubstituted cycloalkyl group and substituted or unsubstituted aralkyl group, and R3, R4, R5, R6, R7, R8, R9 and R10 independently represent any one of a hydrogen atom, halogen atom, cyano group, nitro group, amino group, hydroxyl group, substituted or unsubstituted alkyl group, substituted or unsubstituted cycloalkyl group and substituted or unsubstituted aralkyl group.
    Type: Grant
    Filed: September 12, 2006
    Date of Patent: January 18, 2011
    Assignee: Ricoh Company, Ltd.
    Inventors: Keisuke Shimoyama, Eiji Kurimoto, Takeshi Orito, Tatsuya Niimi, Shinichi Kawamura, Yoshiki Yanagawa, Michitaka Sasaki
  • Publication number: 20100316410
    Abstract: 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 comprising an interfacial layer further comprising an opaque semi-crystalline polyester resin that is also a hot-melt adhesive to prevent light transmission to the substrate and thus significantly reduce “plywood effect,” a print quality defect.
    Type: Application
    Filed: June 16, 2009
    Publication date: December 16, 2010
    Applicant: XEROX CORPORATION
    Inventors: Yuhua Tong, Edward F. Grabowski, Jin Wu