Process Of Making Radiation-sensitive Product Patents (Class 430/127)
  • Patent number: 9640495
    Abstract: A method of removing at least a portion of a layer of material from over a semiconductor substrate that can include dispensing an etching solution over the semiconductor substrate to form a pool of etching solution on the layer of material, wherein a footprint of the pool of etching solution is less than a footprint of the semiconductor substrate. The pool of etching solution and the semiconductor substrate can be moved with respect to each other. A pool boundary of the pool of etching solution can be defined on the semiconductor substrate with at least one air-knife such that the pool of etching solution etches the layer of material over the semiconductor substrate within the footprint of the pool of etching solution. The etching solution and at least a portion of the layer of material etched by the etching solution can be removed with the at least one air-knife.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: May 2, 2017
    Assignee: Deca Technologies Inc.
    Inventors: Timothy L. Olson, William Boyd Rogers, Ferdinand Aldas
  • Patent number: 9607865
    Abstract: A substrate processing device 100 includes a cleaning liquid supply unit 114 supplying a cleaning liquid to a surface of a substrate W, a solvent supply unit 115 supplying a volatile solvent to the surface of the substrate W supplied with the cleaning liquid to replace the cleaning liquid on the surface of the substrate W with the volatile solvent, a heating unit 117 heating the substrate W supplied with the volatile solvent, and a drying unit 118 drying the surface of the substrate W by removing a droplet of the volatile solvent produced on the surface of the substrate W by a heating operation of the heating unit 117, and the heating unit 117 and the drying unit 118 are arranged in a course of transportation of the substrate W transported from the solvent supply unit 115.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: March 28, 2017
    Assignee: SHIBAURA MECHATRONICS CORPORATION
    Inventors: Konosuke Hayashi, Masaaki Furuya, Takashi Ootagaki, Yuji Nagashima, Atsushi Kinase, Masahiro Abe
  • Patent number: 9535345
    Abstract: A solution of a gallium phthalocyanine contains a compound of formula (1) and a gallium phthalocyanine of formula (2), H2N—CH2—R1—CH2—NH2??(1) wherein R1 represents a single bond, or a substituted or unsubstituted alkylene group having 1 to 10 main-chain carbon atoms, a substituent of the substituted alkylene group is an alkyl group having 1 to 3 carbon atoms, an alkyl group having 1 to 3 carbon atoms and being substituted with an amino group, or a hydroxy group, one of the carbon atoms in the main chain of the alkylene group may be replaced with an oxygen atom, a sulfur atom, or a bivalent group represented by the formula —NR2—, and R2 represents a hydrogen atom, an alkyl group having 1 to 3 carbon atoms, or an alkyl group having 1 to 3 carbon atoms and being substituted with an amino group, and wherein X1 represents a chlorine atom or hydroxy group.
    Type: Grant
    Filed: May 1, 2015
    Date of Patent: January 3, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsutomu Nishida, Masato Tanaka, Masataka Kawahara
  • Patent number: 9436106
    Abstract: Provided is an electrophotographic photosensitive member, including a photosensitive layer that includes a phthalocyanine crystal in which a compound represented by the following formula (1) is contained: in the formula (1), X represents a vinyl group or a propyl group.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: September 6, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Junpei Kuno, Tsutomu Nishida, Masato Tanaka, Masataka Kawahara, Kaname Watariguchi
  • Patent number: 9040218
    Abstract: A solution of a gallium phthalocyanine contains a compound of formula (1) and a gallium phthalocyanine of formula (2), H2N—CH2—R1—CH2—NH2??(1) wherein R1 represents a single bond, or a substituted or unsubstituted alkylene group having 1 to 10 main-chain carbon atoms, a substituent of the substituted alkylene group is an alkyl group having 1 to 3 carbon atoms, an alkyl group having 1 to 3 carbon atoms and being substituted with an amino group, or a hydroxy group, one of the carbon atoms in the main chain of the alkylene group may be replaced with an oxygen atom, a sulfur atom, or a bivalent group represented by the formula —NR2—, and R2 represents a hydrogen atom, an alkyl group having 1 to 3 carbon atoms, or an alkyl group having 1 to 3 carbon atoms and being substituted with an amino group, and wherein X1 represents a chlorine atom or hydroxy group.
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: May 26, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsutomu Nishida, Masato Tanaka, Masataka Kawahara
  • Patent number: 8980512
    Abstract: An electrophotographic photoreceptor is disclosed. The electrophotographic photoreceptor includes a resin substrate including a carbon nanotube; and a photosensitive layer located overlying the substrate. In addition, a method for producing an electrophotographic photoreceptor is disclosed. The method includes forming a resin substrate by molding a resin forming material including a carbon nanotube; and forming a photosensitive layer overlying the resin substrate.
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: March 17, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshiaki Kawasaki, Hongguo Li, Tomohiro Hirade
  • Patent number: 8951702
    Abstract: A charge transport material having reduced photodeterioration is disclosed to be an ethylene compound having an ethylene double bond site, having a structure in which four different substituents are substituted at the ethylene double bond site, and having general formula (I) below where R1, R2 and R3 are each independently a hydrogen atom, a halogen atom, an alkyl group of 1 to 6 carbons or an alkoxyl group of 1 to 6 carbons; R4 is phenyl or tolyl; and Ar is one group selected from the group consisting of naphthyl, biphenyl, anthryl, xylyl, and phenanthryl. An electrophotographic photoreceptor and process for producing the electrophotographic photoreceptor also are disclosed. The electrophotographic photoreceptor includes a conductive substrate; and a photosensitive layer provided on the conductive substrate that includes the charge transport material.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: February 10, 2015
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Fengqiang Zhu, Yoichi Nakamura, Ikuo Takaki, Seizo Kitagawa, Shinjirou Suzuki
  • Patent number: 8865302
    Abstract: An electrophotographic recording medium can have a first layer of base material and a second layer formed on one or both surfaces of the first layer for fixing toner. The second layer can include a hollow pigment, an inorganic material and a binder resin. The amount of the hollow pigment can be in the range of about 10% to about 50% by weight based on the total weight of the second layer. The ratio of the white paper glossiness before and after printing on the recording medium may be greater than 1.5.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: October 21, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Woo Jung, Taek-Yong Jung
  • Patent number: 8765336
    Abstract: An electrophotographic photoreceptor and a manufacturing method therefore are disclosed. The electrophotographic photoreceptor includes a conductive base; and a photosensitive layer provided on the conductive base and containing a diadamantyl diester compound represented by General Formula (I) below: where, R1, R2 and R3 each independently represent a hydrogen atom, halogen atom, optionally substituted C1-6 alkyl group, optionally substituted C1-6 alkoxyl group, C6-20 aryl group or heterocyclic group, X and Z represent single bonds or optionally substituted C1-6 alkylene groups, and Y represents an OCO group or COO group. The electrophotographic photoreceptor has sufficient wear resistance and satisfactory properties as a photoreceptor, while being little affected by harmful gasses and environmental temperature and humidity.
    Type: Grant
    Filed: March 1, 2010
    Date of Patent: July 1, 2014
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Fengqiang Zhu, Yoichi Nakamura, Shinjiro Suzuki
  • Patent number: 8748069
    Abstract: Provided are an electrophotographic photoconductor that satisfies sufficient wear resistance as well as various characteristics as a photoconductor, and that is little affected by harmful gas or the temperature and humidity environment, and a method for producing such an electrophotographic photoconductor. The electrophotographic photoconductor has at least a photosensitive layer on a conductive substrate. The photosensitive layer contains a diadamantyl diester compound represented by Formula (I) (in Formula (I), R1, R2 and R3 each independently represent a hydrogen atom, a halogen atom, a substituted or unsubstituted C1-C6 alkyl group, a substituted or unsubstituted C1-C6 alkoxyl group, a C6-C20 aryl group or a heterocyclic group; l, m and n each represent an integer from 1 to 4; U and W represent a single bond or a substituted or unsubstituted C1-C6 alkylene group; and V represents an OCO group or a COO group).
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: June 10, 2014
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Fengqiang Zhu, Shinjiro Suzuki, Masaru Takeuchi, Quanqiu Zhang
  • Patent number: 8703370
    Abstract: An electrophotographic photoreceptor includes a conductive substrate; and a photosensitive layer provided on the conductive substrate and containing a resin binder that is a polycarbonate resin having structural units represented by General Formulae (1) and (2). The electrophotographic photoreceptor reduces the amount of wear and provides good images while maintaining a low frictional resistance on the surface of a photoreceptor drum from the beginning until after printing. A method for manufacturing such an electrophotographic photoreceptor includes applying a coating liquid containing at least such a resin binder onto a conductive substrate to thereby form a photosensitive layer. An electrophotographic device is disclosed that is equipped with such an electrophotographic photoreceptor.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: April 22, 2014
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Quanqiu Zhang, Shinjiro Suzuki, Yoichi Nakamura
  • Publication number: 20140087298
    Abstract: An imaging member includes a supporting substrate, an optional hole blocking layer, an optional adhesive layer, an imaging layer, and an overcoat layer, wherein the overcoat layer comprises a fluorosulfonamide. The overcoat layer can further include a charge transport compound and a melamine resin.
    Type: Application
    Filed: September 26, 2012
    Publication date: March 27, 2014
    Applicant: XEROX CORPORATION
    Inventors: Jin WU, David SKINNER, Than SORN, Lin MA, Lanhui ZHANG, Marissa Anne LINNE, J. Robinson COWDERY-CORVAN, Kenny-tuan T. DINH
  • Patent number: 8679722
    Abstract: A method for producing a photoreceptor includes forming at least a photosensitive layer as a coating layer on a surface of a substantially cylindrical photoreceptor; and polishing a surface of the coating layer formed on the photoreceptor in the layer formation by rotating the photoreceptor and moving a polishing member in a direction crossing a circumferential direction of the photoreceptor in contact with the surface of the coating layer on the photoreceptor.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: March 25, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Keiichi Aoyagi, Masami Tanase
  • Publication number: 20140038099
    Abstract: An electrophotographic photosensitive member having excellent cleaning performance, a process cartridge, and an electrophotographic apparatus. The peripheral surface of the member has flat portions having a width e (?m) satisfying 0.1?e?25 and a plurality of groove portions having a width w (?m) satisfying 0.1?w?25 and a depth d (?m) satisfying 0.1?d?3.0, the flat and groove portions at an angle ? (°) satisfying 80???100 with respect to the axial direction of the member. The sum esum (?m) of the widths e of the flat portions per each width of 100 ?m in the axial direction of the peripheral surface satisfying 5?esum?75, and e?/eAv satisfying e?/eAv?0.46, where eAv (?m) is the average value of the widths e of the flat portions, and e? is the standard deviation thereof.
    Type: Application
    Filed: October 7, 2013
    Publication date: February 6, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Hiroki Uematsu, Harunobu Ogaki, Atsushi Ochi, Yasuhiro Kawai, Koji Takahashi, Shio Murai
  • Patent number: 8632935
    Abstract: The present invention provides a method for producing an electrophotographic photosensitive member including a surface layer, the method including the steps of: forming a coat for the surface layer on the support by applying a surface-layer coating solution and forming the surface layer by drying the coat, wherein the surface-layer coating solution includes a resin ?, a resin ?, a solvent ? and a compound ?.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: January 21, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazumichi Sugiyama, Daisuke Tanaka, Tsutomu Nishida
  • Patent number: 8623582
    Abstract: A method of treating a photoconductor for enhancing crack resistance when it comes into contact with a liquid toner comprises bending a photoconductor sheet having a length and a width to a tube having an outer diameter and a length corresponding to the width of the photoconductor sheet with the photoconductive layer facing outward. The tube of the photoconductor sheet is then inserted into a cylinder having an inner diameter greater than the outer diameter of the tube and a length of at least the length of the tube of the photoconductor sheet. The treatment of the tube of the photoconductor sheet in the cylinder takes place by maintaining it in the cylinder at a temperature of from about room temperature to an elevated temperature. The tube of the photoconductor sheet is removed from the cylinder while it is at about room temperature.
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: January 7, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Eran Gonen, Yossi Rosen, Mark Sandler
  • Patent number: 8568952
    Abstract: The present teachings describe a process for mixing comprising obtaining a dispersion of solid particles and an organic solvent wherein the dispersion comprises a particulate solid content of from about 0.5 weight percent to about 10 weight percent. The dispersion is mixed at a resonant frequency of the mixing system.
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: October 29, 2013
    Assignee: Xerox Corporation
    Inventors: Cuong Vong, Marko Saban, Vladislav Skorokhod, Lanhui Zhang, Lin Ma, Norman Chi Su, Zhen Lai
  • Publication number: 20130280647
    Abstract: This application discloses a photoreceptor comprising a surface layer that is comprised of an organic composition cured by neutral molecular hydrogen bombardment. Methods for forming a photoreceptor having a cured surface are disclosed.
    Type: Application
    Filed: April 24, 2012
    Publication date: October 24, 2013
    Applicant: Xerox Corporation
    Inventors: Yu LIU, Yiliang Wu, Nan-Xing Hu, Gregory M. McGuire, Richard A. Klenkler, Vladislav Skorokhod, Johann Junginger
  • Publication number: 20130244172
    Abstract: The present invention provides a method of producing an electrophotographic photosensitive member using a dispersion solution that shows high liquid stability in long-period storage and hardly causes aggregation of charge-transporting pigment particles during drying a coating. The method of producing an electrophotographic photosensitive member having a charge-transporting layer comprises a step of forming a coating film by applying a dispersion solution comprising polyolefin polymer particles and charge-transporting pigment particles as dispersoids and comprising a dispersion medium, and then forming the charge-transporting layer by heating the coating film and melting the polyolefin polymer particles, wherein the particles consisting of the polyolefin polymer particles and the charge-transporting pigment particles in the dispersion solution have a number average particle diameter of 50 nm or more and 300 nm or less and a degree of dispersion (standard deviation/number average particle diameter) of 1.
    Type: Application
    Filed: November 10, 2011
    Publication date: September 19, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Michiyo Sekiya, Kunihiko Sekido, Akihiro Maruyama
  • Patent number: 8481240
    Abstract: Disclosed herein is an electrophotographic imaging member comprising a substrate, and a charge generating layer containing a phthalocyanine pigment, a binder, and a solvent. The charge generating layer has a pigment particle separation distance of 28 nm or less after evaporation of the solvent. A coating system, a method of making an electrophotographic imaging member, and a method of printing also are disclosed.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: July 9, 2013
    Assignee: Xerox Corporation
    Inventors: Cindy C. Chen, Lanhui Zhang, Linda L. Ferrarese, James M. Markovics, Marc J. LiVecchi, Edward C. Savage, James R. Backus
  • Patent number: 8455170
    Abstract: An electrophotographic photosensitive member is provided in which black spots on an output image are hardly caused by local charge injection from a support to a photosensitive layer. For this purpose, a conductive layer is formed using a coating liquid for a conductive layer prepared using a solvent, a binder material and a metal oxide particle that satisfies the following relation (i): 45?A×?×D?65 (i) wherein A denotes the surface area of the metal oxide particle per unit mass [m2/g], D denotes the number average particle diameter of the metal oxide particle [?m], and ? denotes the density of the metal oxide particle [g/cm3]. The metal oxide particle is a titanium oxide particle coated with tin oxide doped with phosphorus.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: June 4, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Nobuhiro Nakamura, Hideaki Matsuoka, Atsushi Fujii, Haruyuki Tsuji, Kazuhisa Shida
  • Publication number: 20130137032
    Abstract: Provided is a method of producing an electrophotographic photosensitive member having improved sensitivity and capable of outputting an image having less image defects due to a ghost phenomenon not only under a normal-temperature, normal-humidity environment but also under a low-temperature, low-humidity environment as a particularly severe condition. The method of producing a gallium phthalocyanine crystal includes subjecting a gallium phthalocyanine and a specific amine compound, which are added to a solvent, to a milling treatment to perform crystal transformation of the gallium phthalocyanine. In addition, the gallium phthalocyanine crystal is used in the photosensitive layer of the electrophotographic photosensitive member.
    Type: Application
    Filed: November 29, 2012
    Publication date: May 30, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: CANON KABUSHIKI KAISHA
  • Patent number: 8383453
    Abstract: A method of manufacturing an organic light emitting display apparatus includes forming first electrodes on a substrate, forming a pixel defining layer (PDL) on the substrate and first electrodes, the PDL including openings exposing predetermined areas of the first electrodes, forming a charge transport layer on the PDL and inside the openings of the PDL, performing a hydrophobic process on the charge transport layer, performing a hydrophilic process on the charge transport layer, such that portions of the charge transport layer corresponding to the openings are made hydrophilic, forming organic light emitting layers on the charge transport layer, and forming a second electrode electrically connected to the organic light emitting layers.
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: February 26, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventor: Won-Yong Kim
  • Publication number: 20120301818
    Abstract: Exemplary embodiments provide materials and methods for an electrostatic charging member including a conductive substrate; a base layer disposed over the conductive substrate, the base layer comprising an elastomeric material and a semiconductive material; and a protective outer layer disposed over the base layer, the protective outer layer comprising a polymeric resin and a plurality of conductive particles, wherein the outer protective layer has a surface resistivity ranging from about 105 O/sq to about 1013 O/sq.
    Type: Application
    Filed: May 27, 2011
    Publication date: November 29, 2012
    Applicant: XEROX CORPORATION
    Inventors: Brian P. GILMARTIN, Liang-Bih LIN, Jeanne M. KOVAL, Jin WU, Aaron M. STUCKEY
  • Patent number: 8295732
    Abstract: The present invention relates to an electrophotographic photosensitive member including a photosensitive layer formed on an outer circumferential surface of a cylindrical body. The cylindrical body includes a plurality of chamfers formed between an end surface and the outer circumferential surface. A chamfer arranged nearest an inner circumferential surface of the cylindrical body has a crossing angle of not less than 3° and not more than 25° relative to the end surface. The cylindrical body may include a recess formed between the end surface and the outer surface. The end surface may be formed to have pearskin. The present invention also relates to a method of manufacturing the electrophotographic photosensitive member. In the manufacturing method, a plurality of cylindrical bodies is supported by a supporting body in a manner that the end surfaces are positioned at contacting portions of adjacent cylindrical bodies.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: October 23, 2012
    Assignee: Kyocera Corporation
    Inventor: Kouichi Nakano
  • Patent number: 8273517
    Abstract: An aspect of the present invention provides a method of manufacturing an electrophotographic photoreceptor. The method includes forming at least one layer selected from the group consisting of an undercoat layer, a photosensitive layer, and a protective layer, by jetting by an inkjet method a first coating liquid and a second coating liquid from liquid drop discharging heads which are different from each other, and mixing the first coating liquid and the second coating liquid on a conductive substrate. The first coating liquid and the second coating liquid react with each other when they are mixed.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: September 25, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Tomotake Inagaki, Kazuyuki Tada, Tomomasa Sato, Masaru Agatsuma
  • Publication number: 20120225380
    Abstract: A photoreceptor undercoat containing a sulfonamide facilitates removal of coatings from the substrate.
    Type: Application
    Filed: May 16, 2012
    Publication date: September 6, 2012
    Applicant: XEROX CORPORATION
    Inventors: Yuhua Tong, Jin Wu, Nancy L. Belknap, Helen R. Cherniack
  • Patent number: 8257988
    Abstract: A method of making a light emitting diode (LED) having an optical element is provided, comprising: providing a curable liquid polysiloxane/TiO2 composite, which exhibits a refractive index of >1.61 to 1.7 and which is a liquid at room temperature and atmospheric pressure; providing a semiconductor light emitting diode die having a face, wherein the semiconductor light emitting diode die emits light through the face; contacting the semiconductor light emitting diode die with the curable liquid polysiloxane/TiO2 composite; and, curing the curable liquid polysiloxane/TiO2 composite to form an optical element; wherein at least a portion of the optical element is adjacent to the face.
    Type: Grant
    Filed: May 17, 2011
    Date of Patent: September 4, 2012
    Assignee: Rohm and Haas Electronic Materials LLC
    Inventors: Paul Joseph Popa, Garo Khanarian, Weijun Zhou, John R. Ell
  • Publication number: 20120148949
    Abstract: Disclosed is a polymer having excellent solvent resistance which can be produced by using a polycarbonate diol having a repeating unit represented by the formula (1) and/or (2), having a hydroxyl group at both termini, and having a number average molecular weight of from 300 to 50,000: wherein R1 represents a linear or branched hydrocarbon group having 2 to 50 carbon atoms; and n represents an integer of 2 to 50, wherein R2 represents a linear or branched hydrocarbon group having 10 to 50 carbon atoms.
    Type: Application
    Filed: February 17, 2012
    Publication date: June 14, 2012
    Inventor: Katsuya SHIMIZU
  • Publication number: 20120141930
    Abstract: An overcoat containing a copolymer of a first propylene monomer and a second hydrophilic monomer provides superior wear resistance and low torque to a photoreceptor.
    Type: Application
    Filed: December 2, 2010
    Publication date: June 7, 2012
    Applicant: XEROX CORPORATION
    Inventors: Jin Wu, Lanhui Zhang, Lin Ma, Marc J. Livecchi
  • Patent number: 8142968
    Abstract: The disclosed embodiments are directed to an electrophotographic photoreceptor having a release layer. More particularly, the disclosure relates to an electrophotographic photoreceptor having a release layer which comprises an organosilane compound coated over the substrate surface. Other embodiments include methods for coating layer removal using a specifically configured electrophotographic photoreceptor having a release layer and methods for recovering a charge transport molecule.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: March 27, 2012
    Assignee: Xerox Corporation
    Inventors: Robert P. Altavela, Yuhua Tong, Edward F. Grabowski, Kent J. Evans, Adilson Ramos, Nancy Belknap, Helen R. Cherniack
  • Patent number: 8126360
    Abstract: There is provided a temperature control unit for an electrophotographic photoconductor substrate, containing a stretchable membrane member which is detachably disposed in a hollow space of the cylindrical substrate, wherein the membrane member is configured to sequentially stretch until reaching the deepest part of the hollow space of the cylindrical substrate as a result of an introduction of a refrigerant therein to closely contact with an entire inner wall of the cylindrical substrate, and to sequentially shrink to the original shape thereof as a result of a release of the refrigerant therefrom, so that the membrane member is detachably disposed in the hollow space, and wherein the membrane member is configured to make a heat transfer between a surface of the cylindrical substrate and the refrigerant via the membrane member closely contacted with the inner surface of the cylindrical substrate, to control a surface temperature of the cylindrical substrate.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: February 28, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshiaki Kawasaki, Akihiro Sugino, Mitsuaki Hirose, Susumu Muramatsu, Katsuo Kuribayashi, Shoichi Wakabayashi
  • Patent number: 8043783
    Abstract: The presently disclosed embodiments are directed to imaging members for use in electrostatographic, including digital, apparatuses. More particularly, the embodiments pertain to processes for preparing the substrate of such imaging members that use laser technology.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: October 25, 2011
    Assignee: Xerox Corporation
    Inventors: Steven D. Bush, Kyle B. Tallman
  • Patent number: 8034518
    Abstract: An electrophotographic imaging member includes a substrate, a photo generating layer, and an optional overcoating layer, wherein the photo generating layer includes a cyclic triphenylamine derivative material.
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: October 11, 2011
    Assignee: Xerox Corporation
    Inventors: Jennifer A. Coggan, Matthew A. Heuft, Gregory McGuire
  • Publication number: 20110244381
    Abstract: Provided is an electrophotographic photoconductor that has good coating solution stability and metal oxide dispersibility, is free of image defects including ground fogging and black spots, and affords good image characteristics in various environments, as well as a manufacturing method therefore and a device including the same. The electrophotographic photoconductor includes a conductive substrate; an undercoat layer; and a photosensitive layer. The undercoat layer contains, as a main component, a resin obtained by polymerizing, as starting materials, an aromatic dicarboxylic acid, at least one aliphatic dicarboxylic acid having 8 or more carbon atoms, and at least one diamine having a cycloalkane structure, and further contains a metal oxide. The aromatic dicarboxylic acid in the resin is present in an amount that ranges from 0.1 to 10 mol %, and the resin has an acid value and a base value that are each no greater than 10 KOH mg/g.
    Type: Application
    Filed: December 14, 2009
    Publication date: October 6, 2011
    Applicant: FUJI ELECTRIC SYSTEMS CO., LTD.
    Inventors: Shinjirou Suzuki, Yoichi Nakamura, Ikuo Takaki, Seizo Kitagawa, Kazuki Nebashi
  • Publication number: 20110104603
    Abstract: The disclosed embodiments are directed to processes for removing photoreceptor coatings from a substrate, wherein the photoreceptor coatings disposed over a substrate of an electrophotographic photoreceptor. More specifically, the present embodiments discloses a photoreceptor coatings removal process comprises subjecting an electrophotographic photoreceptor to a stripping solution that separates the coatings from the substrate.
    Type: Application
    Filed: November 5, 2009
    Publication date: May 5, 2011
    Applicant: XEROX CORPORATION
    Inventors: Robert C. U. Yu, Kent J. Evans, Yuhua Tong, Nancy L. Belknap, Helen R. Cherniack, Robert P. Altavela, Edward F. Grabowski
  • Patent number: 7897315
    Abstract: A base tube for an electrophotographic photoconductive member, is provided with a cylindrical body on which a photoconductive layer is formed; and a first slanting portion formed on a peripheral surface of an end portion of the cylindrical body, and slanting inward toward an end face of the end portion with respect to an axis of the cylindrical body. An axial length of the first slanting portion of the cylindrical body is within a range of 0.3 to 5 mm.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: March 1, 2011
    Assignee: Kyocera Mita Corporation
    Inventors: Hiroshi Takemoto, Sakae Saito
  • Publication number: 20110045392
    Abstract: A charge-carrier transport layer for an electro-optical component includes an organic charge-carrier transport material. A plurality of first particles having a diameter ranging from 1 nm to 100 nm is incorporated in the organic charge-carrier transport material and contains a first transparent oxide. A plurality of second particles having a diameter between 100 nm and 1000 nm is also incorporated into the organic charge-carrier transport material and contains a second transparent oxide. The index of refraction of the plurality of second particles differs from the index of refraction of the organic charge-transport material.
    Type: Application
    Filed: August 20, 2010
    Publication date: February 24, 2011
    Applicant: KARLSRUHER INSTITUT FUER TECHNOLOGIE
    Inventors: Uli Lemmer, Julian Hauss, Boris Riedel, Martina Gerken
  • Patent number: 7887981
    Abstract: The electrophotographic photoreceptor of the present invention includes a cylindrical support, a photosensitive layer and an outermost surface layer that are layered onto the cylindrical support in this sequence from the cylindrical support side. The outermost surface layer includes a charge transport material and a curable resin. The proportion of the content of the curable resin in the outermost surface layer increases in the layer thickness direction with distance from the photosensitive layer side. The process cartridge and electrophotographic apparatus of the present invention are provided with the electrophotographic photoreceptor.
    Type: Grant
    Filed: May 23, 2007
    Date of Patent: February 15, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Tomotake Inagaki, Kazuyuki Tada, Tomomasa Sato, Naoki Morita, Kenji Ikeda
  • Patent number: 7879517
    Abstract: An electrophotographic photoreceptor is disclosed, comprising on an electrically conductive support an intermediate layer, a charge generation layer and a charge transport layer in this order, wherein the charge transport layer contains a charge transport material represented by formula (1) and a compound represented by formula (2) and the content of the compound represented by formula (2) is not less than 100 ppm and not more than 5000 ppm.
    Type: Grant
    Filed: July 19, 2007
    Date of Patent: February 1, 2011
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Tomoo Sakimura, Masahiro Ishie, Shinichi Yabuki, Hidaya Miwa
  • Publication number: 20110014563
    Abstract: The presently disclosed embodiments relate generally to layers that are useful in imaging apparatus members and components, for use in electrophotographic, including digital, apparatuses. Embodiments pertain to an improved electrophotographic imaging member incorporating an outer layer having a nano- to micron-scale pattern imprinted into its surface to lower friction with the cleaning blade and improve print quality and performance. Embodiments also pertain to methods for making the improved imaging member.
    Type: Application
    Filed: July 20, 2009
    Publication date: January 20, 2011
    Applicant: XEROX CORPORATION
    Inventors: Woo Soo Kim, Nan-Xing Hu, Yvan Gagnon, Johann Junginger
  • Patent number: 7851119
    Abstract: The present invention provides an electrophotographic photoconductor capable of reducing latent electrostatic image stability defects caused by adhesion/adsorption of an electric discharge product formed by a charger in an image forming process, degradation of charge transportability and cleaning defects caused when removing a residual toner.
    Type: Grant
    Filed: September 5, 2007
    Date of Patent: December 14, 2010
    Assignee: Ricoh Company, Ltd.
    Inventors: Tetsuya Toshine, Chiaki Tanaka, Michio Kimura, Tomoyuki Shimada, Nozomu Tamoto, Yoshiki Yanagawa, Hiromi Tada
  • Patent number: 7799501
    Abstract: Methods for making dispersions, which are of various rheologies, various pigment/binder ratios, various particle sizes, and possess less impurities or large particles are provided. These dispersions may be utilized to form layers of photoreceptors.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: September 21, 2010
    Assignee: Xerox Corporation
    Inventors: Lanhui Zhang, Lin Ma, Keith T. Wong
  • Publication number: 20100183973
    Abstract: A method for manufacturing a photoconductive layer formed of Bi12MO20 particles (M is at least one of Si, Ge, and Ti) and constitutes a radiation imaging panel for recording radiation image information as an electrostatic latent image. The method includes the steps of molding a powder compact of Bi12MO20 particles, impregnating the powder compact with a macromolecular substance, and solidifying the macromolecular substance.
    Type: Application
    Filed: January 15, 2010
    Publication date: July 22, 2010
    Applicant: FUJIFILM Corporation
    Inventor: Kohei HIGASHI
  • Patent number: 7759034
    Abstract: The present invention relates to an electrophotographic photosensitive member and an image forming apparatus provided with the electrophotographic photosensitive member. The electrophotographic photosensitive member includes a cylindrical body and a photosensitive layer formed on a circumferential surface of the cylindrical body and including a latent image forming area and a non-latent image forming area. The photosensitive layer includes a stress relaxation portion at the non-latent image forming area for releasing stress applied between the cylindrical body and the photosensitive layer. The present invention further relates to a method of producing the electrophotographic photosensitive member.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: July 20, 2010
    Assignee: Kyocera Corporation
    Inventor: Kouichi Nakano
  • Publication number: 20100158561
    Abstract: An electrophotographic photoreceptor having high performance that hardly generates image defects such as black spots, color spots, and interference fringes is provided. The electrophotographic photoreceptor includes an undercoat layer containing metal oxide particles and a binder resin on an electroconductive substrate having a maximum height surface roughness Rz in the range of 0.8?Rz?2 ?m, 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 containing the undercoat layer dispersed in a solvent mixture of methanol and 1-propanol at a weight ratio of 7:3.
    Type: Application
    Filed: May 18, 2007
    Publication date: June 24, 2010
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Teruyuki Mitsumori, Kozo Ishio, Hiroe Fuchigami, Susumu Taguchi, Shunichiro Kurihara
  • Publication number: 20100129745
    Abstract: An electrophotographic recording medium is disclosed. The electrophotographic recording medium can include a base layer acting as the substrate, a undercoating layer formed on a surface of the base layer and a toner fixing layer formed on the undercoating layer. The undercoating layer may include one or more resins selected from a group consisting of an acryl resin, a polyurethane resin, a vinyl resin and a polyol resin. The electrophotographic recording medium disclosed herein may advantageously exhibit curling preventive characteristics and improved smoothness and glossiness.
    Type: Application
    Filed: October 27, 2009
    Publication date: May 27, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Taek-Yong Jung, Chang-Woo Jung
  • Publication number: 20100129746
    Abstract: An electrophotographic recording medium can have a first layer of base material and a second layer formed on one or both surfaces of the first layer for fixing toner. The second layer can include a hollow pigment, an inorganic material and a binder resin. The amount of the hollow pigment can be in the range of about 10% to about 50% by weight based on the total weight of the second layer. The ratio of the white paper glossiness before and after printing on the recording medium may be greater than 1.5.
    Type: Application
    Filed: October 27, 2009
    Publication date: May 27, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang-Woo JUNG, Taek-Yong JUNG
  • Publication number: 20100119269
    Abstract: To provide a fixing member for fixing to a recording medium an unfixed image formed with a developer, the fixing member including: a base material; an elastic layer which is provided outside the base material and has an elastic deformation property; and a release layer which is provided outside the elastic layer and promotes separation of the recording medium from the fixing member, wherein the release layer has a plurality of through-holes formed between its front surface and its surface on the opposite side to the front surface, and part of the elastic layer in contact with the release layer can fill the through-holes upon provision of pressure for fixing the unfixed image to the recording medium.
    Type: Application
    Filed: October 30, 2009
    Publication date: May 13, 2010
    Applicant: RICOH COMPANY, LTD.
    Inventors: Tsuneaki Kondoh, Junichiro Natori, Tomoaki Sugawara
  • Patent number: 7704657
    Abstract: An electrophotographic photosensitive member having excellent electrophotographic properties while being prevented from the generation of blade turn-up, a method of manufacturing the electrophotographic photosensitive member, and a process cartridge and an electrophotographic apparatus each having the electrophotographic photosensitive member are provided. The surface layer of the electrophotographic photosensitive member contains a polymer having a specific repeating structural unit.
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: April 27, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hirotoshi Uesugi, Yukihiro Abe, Daisuke Miura, Nobumichi Miki, Harunobu Ogaki