Applying Overlayer Patents (Class 430/132)
  • Patent number: 10684566
    Abstract: A method of preparing an organic photoconductor drum having a protective overcoat on its outermost surface is provided. In an example embodiment, a photoconductor drum having an electrically conductive substrate, a charge generation layer, a charge transport layer and an outermost protective overcoat layer is provided. The photoconductor drum is cured using a two-step process. The first curing step applies either ionizing irradiation, such as with an electron beam or by gamma rays or applies non-ionizing irradiation such as ultraviolet light to the photoconductor drum. A mask is sized and placed over the print area of the initially cured photoconductor drum, thereby exposing the outermost edges of the photoconductor drum. The outer edges of the masked photoconductor drum is then exposed to a second curing step using ultraviolet light irradiation.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: June 16, 2020
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: Weimei Luo, Mark Thomas Bellino, Rudolph Wayne Hrobsky
  • Patent number: 10620555
    Abstract: A method of curing a protective overcoat layer on the outermost portion of an organic photoconductor drum using dual curing process is provided. The first curing step applies either ionizing irradiation, such as with an electron beam or by gamma rays or applies non-ionizing irradiation such as ultraviolet light to the overcoated photoconductor drum. A mask or shield is sized to be placed over the print area of the initially cured photoconductor drum, thereby exposing the outermost edges of the photoconductor drum. The outer edges of the masked photoconductor drum is then exposed to a second curing step using non-ionizing irradiation such as ultraviolet light.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: April 14, 2020
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: Weimei Luo, Mark Thomas Bellino, Rudolph Wayne Hrobsky
  • Patent number: 10571818
    Abstract: A method of preparing an organic photoconductor drum having a protective overcoat on its outermost surface is provided. In an example embodiment, a photoconductor drum having an electrically conductive substrate, a charge generation layer, a charge transport layer and an outermost protective overcoat layer is provided. The photoconductor drum is cured using a two-step process. The first curing step applies either ionizing irradiation, such as with an electron beam or by gamma rays or applies non-ionizing irradiation such as ultraviolet light to the photoconductor drum. A mask is sized and placed over the print area of the initially cured photoconductor drum, thereby exposing the outermost edges of the photoconductor drum. The outer edges of the masked photoconductor drum is then exposed to a second curing step using ultraviolet light irradiation.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: February 25, 2020
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: Weimei Luo, Mark Thomas Bellino, Rudolph Wayne Hrobsky
  • Patent number: 10571817
    Abstract: A method of curing a protective overcoat layer on the outermost portion of an organic photoconductor drum using dual curing process is provided. The first curing step applies either ionizing irradiation, such as with an electron beam or by gamma rays or applies non-ionizing irradiation such as ultraviolet light to the overcoated photoconductor drum. A mask or shield is sized to be placed over the print area of the initially cured photoconductor drum, thereby exposing the outermost edges of the photoconductor drum. The outer edges of the masked photoconductor drum is then exposed to a second curing step using non-ionizing irradiation such as ultraviolet light.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: February 25, 2020
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: Weimei Luo, Mark Thomas Bellino, Rudolph Wayne Hrobsky
  • Patent number: 10429754
    Abstract: Provided is an electrophotographic photosensitive member, including: a support; a charge-generating layer on the support; a charge-transporting layer on the charge-generating layer; and a protective layer on the charge-transporting layer, wherein the protective layer contains the following components (?), (?), and (?): (?) a polymer of a hole-transportable compound; (?) a polycarbonate resin; and (?) a hole-transportable compound, wherein a content of the component (?) in the protective layer is 0.01 mass % or more and 4.0 mass % or less with respect to a content of the component (?) in the protective layer, wherein a content of the component (?) in the protective layer is 0.001 mass % or more and 3.0 mass % or less with respect to the content of the component (?) in the protective layer, and wherein the charge-transporting layer contains the component (?).
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: October 1, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koji Takahashi, Mai Murakami, Yoshihisa Saito
  • Patent number: 10289014
    Abstract: A method of preparing an organic photoconductor drum having a protective overcoat on its outermost surface is provided. In an example embodiment, a photoconductor drum having an electrically conductive substrate, a charge generation layer, a charge transport layer and an outermost protective overcoat layer is provided. The photoconductor drum is cured using a two-step process. The first curing step applies either ionizing irradiation, such as with an electron beam or by gamma rays or applies non-ionizing irradiation such as ultraviolet light to the photoconductor drum. A mask is sized and placed over the print area of the initially cured photoconductor drum, thereby exposing the outermost edges of the photoconductor drum. The outer edges of the masked photoconductor drum is then exposed to a second curing step using ultraviolet light irradiation.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: May 14, 2019
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: Weimei Luo, Mark Thomas Bellino, Rudolph Wayne Hrobsky
  • Patent number: 10289013
    Abstract: A method of curing a protective overcoat layer on the outermost portion of an organic photoconductor drum using dual curing process is provided. The first curing step applies either ionizing irradiation, such as with an electron beam or by gamma rays or applies non-ionizing irradiation such as ultraviolet light to the overcoated photoconductor drum. A mask or shield is sized to be placed over the print area of the initially cured photoconductor drum, thereby exposing the outermost edges of the photoconductor drum. The outer edges of the masked photoconductor drum is then exposed to a second curing step using non-ionizing irradiation such as ultraviolet light.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: May 14, 2019
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: Weimei Luo, Mark Thomas Bellino, Rudolph Wayne Hrobsky
  • Patent number: 10160859
    Abstract: A thermoplastic composition which comprises at least one polyamide, which preferably has a melting point of less than 185° C., and at least one liquid polysiloxane compound which preferably has a viscosity of 750 to 100,000 mPas at 25° C. and is OH terminated, wherein the thermoplastic composition is obtainable by a process comprising the steps: 1a) heating the at least one polyamide to a temperature above the melting point of the at least one polyamide and preferably below 185° C.; 2a) adding under stirring the at least one liquid polysiloxane compound to the heated compound(s) of step 1a), wherein the temperature is kept above the melting point of the at least one polyamide and preferably below 185° C.; and 3a) mixing the obtained mixture of step 2a) preferably at 80° to 180° C., more preferably 110 to 140° C. Use of this the thermoplastic composition according to the present invention in sealants, adhesives, or as rheological modifier or surface modifier.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: December 25, 2018
    Assignee: Henkel AG & Co. KGaA
    Inventors: Sebastien Lanau, Giorgio Zaffaroni, Luca Marchese, Sebastiano Moscardin
  • Patent number: 9570303
    Abstract: A method of forming a nitrogen-doped amorphous carbon layer on a substrate in a processing chamber is provided. The method generally includes depositing a predetermined thickness of a sacrificial dielectric layer over a substrate, forming patterned features on the substrate by removing portions of the sacrificial dielectric layer to expose an upper surface of the substrate, depositing conformally a predetermined thickness of a nitrogen-doped amorphous carbon layer on the patterned features and the exposed upper surface of the substrate, selectively removing the nitrogen-doped amorphous carbon layer from an upper surface of the patterned features and the upper surface of the substrate using an anisotropic etching process to provide the patterned features filled within sidewall spacers formed from the nitrogen-doped amorphous carbon layer, and removing the patterned features from the substrate.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: February 14, 2017
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Sungjin Kim, Deenesh Padhi, Sung Hyun Hong, Bok Hoen Kim, Derek R. Witty
  • Patent number: 9450200
    Abstract: An organic light emitting diode includes a first electrode including a first electrode including a reflective metal layer formed of a light-reflective metal, an upper transparent conductive layer positioned on the reflective metal layer, and a protective layer positioned on the upper transparent conductive layer; an organic emission layer positioned on the first electrode; and a second electrode positioned on the organic emission layer, wherein the upper transparent conductive layer is amorphous.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: September 20, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong-Chan Kim, Jong-Hyuk Lee, Young-Woo Song, Won-Jong Kim, Kyu-Hwan Hwang, Seok-Gyu Yoon, Eung-Do Kim, Bo-Ra Jung, Dong-Kyu Seo
  • Publication number: 20150099217
    Abstract: Disclosed is an electrophotographic photoreceptor including a conductive support, a photosensitive layer on the conductive support and a surface layer on the photosensitive layer. The surface layer includes a cured resin prepared by polymerization of a compound having two or more radically polymerizable functional groups per molecule, the cured resin containing an organic resin fine particle and a metal oxide fine particle, and the organic resin fine particle comprising a resin containing a structural unit derived from at least one of melamine and benzoguanamine, the organic resin fine particle having a number average primary particle size of 0.01 to 3.00 ?m.
    Type: Application
    Filed: September 29, 2014
    Publication date: April 9, 2015
    Inventors: Hokuto HATANO, Kazunori Kurimoto, Seisuke Maeda, Hiroki Takao
  • Patent number: 8980511
    Abstract: An organic photoconductor includes a conductive substrate; a charge generation layer over the conductive substrate; a charge transport layer over the charge generation layer; and an overcoat layer over the charge transport layer. The overcoat layer comprises a cross-linked polyacrylate that includes a charge transport material dispersed therein and a polyhedral oligomeric silsesquioxane.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: March 17, 2015
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin Zhou, Krzysztof Nauka, Lihua Zhao, Anthony William McLennan
  • Patent number: 8962227
    Abstract: An electrophotographic photosensitive member that includes the outermost surface layer formed by curing a mixture of a charge transporting substance having a chain-polymerizable functional group and a urea compound represented by the following formula (1) or (2), and a process cartridge and an electrophotographic apparatus each including the electrophotographic photosensitive member.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: February 24, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masato Tanaka, Masaki Nonaka
  • Publication number: 20150030974
    Abstract: Described herein is a photoreceptor having a substrate, a charge generating layer, a charge transport layer comprising N,N,N?N?-tetra(4-methylphenyl)-(1,1?-biphenyl)-4,4?-diamine having a purity of from about 95 percent to about 100 percent, and a protective overcoat layer. The N,N,N?N?-tetra(4-methylphenyl)-(1,1?-biphenyl)-4,4?-diamine has been treated by a purification process two or more times.
    Type: Application
    Filed: July 23, 2013
    Publication date: January 29, 2015
    Applicant: XEROX CORPORATION
    Inventors: Gregory M. McGuire, Jennifer A. Coggan, Alan E.J. Toth, Nan-Xing Hu, Yu Liu
  • Patent number: 8927183
    Abstract: A photoreceptor including an electroconductive substrate; a photosensitive layer, which is located overlying the electroconductive substrate and which includes a charge generation material, a charge transport material having no radical polymerizability, a binder resin having no radical polymerizability, and a crosslinked polymer including a unit obtained from a first radically polymerizable monomer having three or more functional groups and no charge transport structure and a unit obtained from a second radically polymerizable monomer having a charge transport structure; and an outermost layer, which is located on the photosensitive layer and which includes a crosslinked polymer including a unit obtained from a third radically polymerizable monomer having three or more functional groups and no charge transport structure and a unit obtained from a fourth radically polymerizable monomer having a charge transport structure. An image forming method and apparatus, and a process cartridge using the photoreceptor.
    Type: Grant
    Filed: May 28, 2008
    Date of Patent: January 6, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshiaki Kawasaki, Akihiro Sugino, Mitsuaki Hirose
  • Publication number: 20140349227
    Abstract: An organic photoconductor includes: a conductive substrate; a charge generation layer formed on the conductive substrate; a charge transport layer formed on the charge generation layer; and a protective coating formed on the charge transport layer. The protective coating comprises nanoparticles incorporated in an in-situ cross-linked polymer matrix. A process for increasing mechanical strength in an organic photoconductor is also provided.
    Type: Application
    Filed: March 30, 2012
    Publication date: November 27, 2014
    Inventors: Krzysztof Nauka, Zhang-Lin Zhou, Lihua Zhao
  • Publication number: 20140322638
    Abstract: An alcohol-soluble organic coating including a hole transport material formed on a surface of organic photoconductor is provided. The coating comprises a cationic alternate fluorene-based copolymer with phosphonium salt terminal groups embedded in an in-situ cross-linked polymer.
    Type: Application
    Filed: December 20, 2011
    Publication date: October 30, 2014
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Zhang-Lin Zhou, Krzysztof Nauka, Lihua Zhao
  • Publication number: 20140205946
    Abstract: Provided is a method of producing an electrophotographic photosensitive member including a support and a surface layer formed on the support, the method including the steps of forming a coat of a surface-layer coating solution, and drying the coat to form the surface layer, in which the surface-layer coating solution includes resin ?, resin ?, solvent ?, and compound ?.
    Type: Application
    Filed: January 6, 2014
    Publication date: July 24, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kazumichi Sugiyama, Daisuke Tanaka, Tsutomu Nishida
  • Publication number: 20140141361
    Abstract: Surface control apparatuses including an imaging member having a charge retentive surface for developing an electrostatic latent image thereon. The imaging member including a substrate, a photoconductive layer disposed on the substrate, and a surface control (SC) layer disposed on the outer surface of the imaging member. Image forming apparatuses having such surface control apparatuses installed and methods of reducing print defects using such image forming apparatuses.
    Type: Application
    Filed: November 19, 2012
    Publication date: May 22, 2014
    Applicant: XEROX CORPORATION
    Inventors: Yu Liu, Gregory McGuire, Sarah J Vella, Richard A Klenkler, Vladislav Skorokhod, Nan-Xing Hu, Yiliang Wu
  • Publication number: 20140127617
    Abstract: An organic photoconductor includes a conductive substrate; a charge generation layer over the conductive substrate; a charge transport layer over the charge generation layer; and an overcoat layer over the charge transport layer. The overcoat layer comprises a cross-linked polyacrylate that includes a charge transport material dispersed therein and a polyhedral oligomeric silsesquioxane.
    Type: Application
    Filed: November 8, 2012
    Publication date: May 8, 2014
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin Zhou, Krzysztof Nauka, Lihua Zhao, Anthony William McLennan
  • Patent number: 8669030
    Abstract: A photoreceptor including an electroconductive substrate; a photosensitive layer which is located overlying the electroconductive substrate and which is not radically crosslinked; and an outermost layer which is located overlying the photosensitive layer and which includes a radically crosslinked material, wherein the radically crosslinked material includes a unit having a specific formula. An image forming method, an image forming apparatus, and a process cartridge, which use the photoreceptor.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: March 11, 2014
    Assignee: Ricoh Company, Limited
    Inventors: Yukio Fujiwara, Tetsuro Suzuki, Kazukiyo Nagai, Hiroshi Tamura, Hiroshi Ikuno, Hidetoshi Kami
  • Patent number: 8663748
    Abstract: In the formation of a conductive roller 1, a compound forming an elastomer by curing through an electron beam irradiation or a ultraviolet ray irradiation is applied onto an outside of a shaft member 2 to form an elastomeric coating layer 3R and then the elastomeric coating layer is cured through an irradiation of an electron beam or a ultraviolet ray to form an elastic layer, whereby the elastic layer can be formed cheaply without sacrificing precision of peripheral dimension to largely reduce the cost of the conductive roller.
    Type: Grant
    Filed: September 21, 2005
    Date of Patent: March 4, 2014
    Assignee: Bridgestone Corporation
    Inventors: Shuyou Akama, Hiroyuki Anzai, Hiroyuki Kanesugi, Koji Takagi
  • Patent number: 8647798
    Abstract: A photoreceptor including an electroconductive substrate; a photosensitive layer on the electroconductive substrate; and a protection layer on the photosensitive layer, wherein the protection layer includes a radical polymerizable compound having three or more radical polymerizable groups without a charge transportable group, a monofunctional radical polymerizable compound having a specific charge transportable group and a non-radical polymerizable compound having a specific charge transportable group.
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: February 11, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Tomoharu Asano, Hiroshi Ikuno, Akihiro Sugino, Hideo Nakamori, Mitsuaki Hirose
  • 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
  • Publication number: 20130344424
    Abstract: Organic photoconductors and methods of manufacturing the same are disclosed. An example method to manufacture an organic photoconductor involves applying a liquid solution to a surface of a cylindrically-shaped substrate while rotating the substrate about its axis, the substrate comprising a surface layer and the liquid solution comprising a matrix polymer species and a dopant species dissolved in a solvent. The example method further involves rotating the substrate while the solvent evaporates to provide a substantially evenly distributed seamless residue film comprising the matrix polymer species and the dopant species, and cross-linking the matrix polymer species of the residue film.
    Type: Application
    Filed: June 22, 2012
    Publication date: December 26, 2013
    Inventors: Krzysztof Nauka, Anthony William McLennan, Hou T. Ng
  • Publication number: 20130344425
    Abstract: A doped protective coating for extending a lifetime of an organic photoconductor is provided. The coating includes an in-situ cross-linked polymer matrix and a substantially uniformly distributed dopant therein. The dopant comprises a charge transport molecular species. A process for coating the organic photoconductor and a coated organic photoconductor are also disclosed.
    Type: Application
    Filed: February 24, 2011
    Publication date: December 26, 2013
    Inventors: Krzystof Nauka, Zhang-Lin Zhou, Lihua Zhao
  • Publication number: 20130330663
    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: Application
    Filed: April 16, 2013
    Publication date: December 12, 2013
    Inventors: Yoshiaki KAWASAKI, Hongguo LI, Tomohiro HIRADE
  • Publication number: 20130323632
    Abstract: Provided are an electrophotographic photosensitive member in which leakage doesn't easily occur, a process cartridge and an electrophotographic apparatus each including the electrophotographic photosensitive member, and a method of manufacturing the electrophotographic photosensitive member. The electrophotographic photosensitive member includes a conductive layer including titanium oxide particle coated with tin oxide doped with a hetero element. When an absolute value of a maximum current amount flowing through the conductive layer in a case of performing a test of applying ?1.0 kV including DC voltage to the conductive layer is defined as Ia, and an absolute value of a current amount flowing through the conductive layer in a case where a decrease ratio of a current amount per minute reaches 1% or less for the first time is defined as Ib, the relations of Ia?6000 and 10?Ib are satisfied. A volume resistivity of the conductive layer before the test is 1.0×108 ?·cm to 5.0×1012 ?·cm.
    Type: Application
    Filed: March 1, 2012
    Publication date: December 5, 2013
    Inventors: Atsushi Fujii, Hideaki Matsuoka, Haruyuki Tsuji, Kazuhisa Shida, Nobuhiro Nakamura
  • Publication number: 20130243483
    Abstract: In a photoreceptor including an electroconductive substrate; a photosensitive layer; and a protective layer, the protective layer includes a crosslinked resin having a residual group of a polycarboxylic acid compound and a group having the below-mentioned formula (10), and at least one of a compound having the below-mentioned formula (2) and a compound having the below-mentioned formula (3). wherein each of R5 and R6 independently represents a hydrogen atom, or a substituted or unsubstituted alkyl group having 1 to 3 carbon atoms. wherein each of R7 and R8 independently represents a hydrogen atom, or an alkyl group having 1 to 4 carbon atoms, and Z1 represents a vinylene group, a divalent aromatic hydrocarbon group having 6 to 14 carbon atoms, or a 2,5-thiophenediyl group.
    Type: Application
    Filed: February 20, 2013
    Publication date: September 19, 2013
    Inventors: Mitsuaki HIROSE, Akihiro Sugino, Noboru Toriu, Keisuke Shimoyama, Tomoharu Asano
  • Patent number: 8507163
    Abstract: A method of manufacturing an image bearing member including forming a charge generation layer overlying an electroconductive substrate, forming a charge transport layer overlying the charge generation layer, the charge transport layer including a charge transport material having a molecular weight of from 600 to 900 and a binder resin, and forming a protection layer overlying the charge transport layer by applying a liquid application containing a polymerizable compound having a charge transport structure, a polymerizable compound having no charge transport structure, a filler, a polycarboxylic acid compound, and cyclopentanone and curing the polymerizable compound having a charge transport structure, and the polymerizable compound having no charge transport structure.
    Type: Grant
    Filed: December 11, 2009
    Date of Patent: August 13, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Nozomu Tamoto, Hideo Nakamori, Mitsuaki Hirose
  • Patent number: 8404417
    Abstract: In the present invention, disclosed is an organic photoreceptor comprising a conductive support and provided thereon, a photosensitive layer and a protective layer provided on the photosensitive layer, the protective layer formed with alumina particles each comprising a reactive organic group. Also provided is an organic photoreceptor with which electrophotographic images having high durability together with high image quality can be obtained by improving a wear property of the organic photoreceptor up to the same level as that of an amorphous silicon photoreceptor, as well as by improving image flow and image blur which are easy to be generated at high temperature and high humidity.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: March 26, 2013
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Toshiyuki Fujita, Hirofumi Hayata, Takeshi Ishida, Masahiko Kurachi, Seisuke Maeda, Seijiro Takahashi
  • Publication number: 20130065169
    Abstract: An electrophotographic photoreceptor includes a conductive substrate; and a photosensitive layer on the conductive substrate, wherein a layer having an outermost surface of the photoreceptor contains a polymer that is formed by polymerizing a crosslinkable charge transport material having an aromatic group and a —CH2OH group, and the layer having the outermost surface satisfies the following Formula (1): (Peak 2)/(Peak 1)?0.05??(1) wherein Peak 1 represents a peak area of an absorption peak (from about 1550 cm?1 to about 1650 cm?1) of stretching vibration of an aromatic group, which is obtained when an infrared absorption spectrum of the layer having the outermost surface is measured, and Peak 2 represents a peak area of an absorption peak (from about 1670 cm?1 to about 1710 cm?1) of an aromatic aldehyde, which is obtained when the infrared absorption spectrum of the layer having the outermost surface is measured.
    Type: Application
    Filed: January 26, 2012
    Publication date: March 14, 2013
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Masahiro IWASAKI
  • Publication number: 20130059242
    Abstract: A photoreceptor including an electroconductive substrate; a photosensitive layer on the electroconductive substrate; and a protection layer on the photosensitive layer, wherein the protection layer includes a radical polymerizable compound having three or more radical polymerizable groups without a charge transportable group, a monofunctional radical polymerizable compound having a specific charge transportable group and a non-radical polymerizable compound having a specific charge transportable group.
    Type: Application
    Filed: July 24, 2012
    Publication date: March 7, 2013
    Inventors: Tomoharu Asano, Hiroshi Ikuno, Akihiro Sugino, Hideo Nakamori, Mitsuaki Hirose
  • Publication number: 20130052572
    Abstract: Provided is a compound represented by the following Formula (I): wherein in Formula (I), F represents a charge transporting skeleton, L represents a divalent linking group including a —(CH2)n—O— group, m represents an integer of from 1 to 8, and n represents an integer of from 3 to 6.
    Type: Application
    Filed: March 5, 2012
    Publication date: February 28, 2013
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Katsumi NUKADA, Wataru YAMADA, Tomoya SASAKI, Yuko IWADATE, Kenji KAJIWARA
  • 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
  • Patent number: 8367287
    Abstract: An electrophotographic photoconductor of the invention comprising: an conductive support; a light-sensitive layer formed on the conductive support and containing a charge generating material and a charge transport material; and a surface protective layer formed on the light-sensitive layer and made of a resin composition, wherein the resin composition constituting the surface protective layer contains an amine compound represented by the following formula (1): wherein R1 and R2 are, the same or different, each an alkyl group or an allyl group which may have a substituent or a heterocyclic residue to be formed through or not through a nitrogen atom or an oxygen atom together with the nitrogen atom to which R1 and R2 are bonded, R3 and R4 are, the same or different, each an alkyl group having a substituent and n denotes 1 or 2, provided that when n is 1, X is a hydrogen atom, a halogen atom, or an alkyl group, a hydroxyl group or a mercapto group which may have a substituent, or a ring optionally containing
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: February 5, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroshi Sugimura, Kotaro Fukushima, Koichi Toriyama
  • Patent number: 8354210
    Abstract: An electrophotographic photoconductor that stabilizes electrical performances and prevents generation of image faults such as memories, irrespective of types of organic materials of resin binder and charge transport material, and variation of temperature and humidity of the operation environment. An electrophotographic photoconductor includes at least a photosensitive layer formed over a conductive substrate, wherein the photosensitive layer contains a cyclohexane dimethanol-diaryl ester compound represented by the formula (I): in formula (I), each of R1 through R10 represents independently, a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group of carbon number of from 1 to 5, a substituted or unsubstituted aryl group, or a substituted or unsubstituted alkoxy group of carbon number of from 1 to 5.
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: January 15, 2013
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Ikuo Takaki, Yoichi Nakamura, Kazuki Nebashi
  • Patent number: 8350239
    Abstract: Exemplary embodiments provide materials and methods for a pen that can include a writing end for writing an image on an erasable medium and an erasing end for locally erasing an image from the erasable medium.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: January 8, 2013
    Assignee: Xerox Corporation
    Inventors: Bryan J. Roof, Anthony S. Condello
  • Patent number: 8343698
    Abstract: A photoreceptor including an electroconductive substrate, a photosensitive layer located overlying the electroconductive substrate, and a surface layer located overlying the photosensitive layer, the surface layer including a cross-linked material of a radical polymerizable monomer having at least 3 functional groups with no charge transport structure and a radical polymerizable compound having a charge transport structure, the surface layer having a sulfur concentration of 50 ppmw or lower.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: January 1, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshiaki Kawasaki, Kazukiyo Nagai, Yukio Fujiwara
  • 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: 8318396
    Abstract: An organic photoreceptor is disclosed, comprising, on an electrically conductive support, a photosensitive layer and a protective layer containing metal oxide particles produced by a plasma method, and the protective layer being formed by curing a composition containing the metal oxide particles and a curable compound. There is also disclosed a preparation method of the organic photoreceptor.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: November 27, 2012
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Toshiyuki Fujita, Hirofumi Hayata, Takeshi Ishida, Masahiko Kurachi, Seisuke Maeda, Seijiro Takahashi
  • Patent number: 8298735
    Abstract: Disclosed is an organic photoreceptor, which is composed of a photosensitive layer and a protective layer, provided on an electric conductive support, and the protective layer contains a composition obtained by hardening reaction of ?-alumina particles treated with a compound having a reactive functional group with a hardenable compound. A manufacturing method thereof is also disclosed.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: October 30, 2012
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Masahiko Kurachi, Takeshi Ishida, Toshiyuki Fujita, Seisuke Maeda, Seijiro Takahashi
  • Patent number: 8287774
    Abstract: A method of manufacturing an electrochromic polyaniline thin film changeable in color in dependency upon the supply of electricity is provided. The method comprises the steps of polymerizing aniline monomer into polyaniline polymer, separating the polyaniline polymer, liquefying the separated polyaniline polymer into a dispersing solution using a mixed surfactant, and dissolving an UV curing adhesive in the dispersing solution, whereby the polyaniline thin film has the ductility and improved adhesion force for an electric substrate, so that it is applicable to development of a flexible display and as a next generation hi-tech material.
    Type: Grant
    Filed: October 15, 2007
    Date of Patent: October 16, 2012
    Assignee: Korea Institute of Industrial Technology
    Inventor: Tae-Jin Hwang
  • 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
  • Patent number: 8213845
    Abstract: An intermediate transfer member substrate with an overcoat and a process for preparing the intermediate transfer member substrate with an overcoat layer by application of corona treatment to the surface of the intermediate transfer member substrate to enhance the interfacial adhesion between the overcoat and intermediate transfer member substrate.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: July 3, 2012
    Assignee: Xerox Corporation
    Inventors: Jonathan H. Herko, Jin Wu, Scott J. Griffin, Michael S. Roetker, Dante M. Pietrantoni, David W. Martin, Francisco J. Lopez
  • Publication number: 20120164568
    Abstract: A photoreceptor charge transport layer containing a film-forming material or binder with a higher Tg and a symmetric charge transport molecule is described.
    Type: Application
    Filed: December 27, 2010
    Publication date: June 28, 2012
    Applicant: XEROX CORPORATION
    Inventors: Greg McGuire, Jennifer A. Coggan
  • Patent number: 8168365
    Abstract: The present invention provides a method for manufacturing an electrophotographic photosensitive member including a step of forming a first surface layer and a second surface layer of the electrophotographic photosensitive member by supplying a source gas into a reaction vessel so that C2/S2, which are respectively flow rates of CH4 and SiH4 flowing when the second surface layer is formed, can be 3 or more and 25 or less, and C1/S1, which are respectively flow rates of CH4 and SiH4 flowing when the first surface layer is formed, can be C2/S2 or more but 60 or less. The method includes an additional step of adjusting the high-frequency power so that P2>P1 can be satisfied, which are high-frequency powers respectively when the second surface layer is formed and when the first surface layer is formed, and C/(Si+C) of the first surface layer and C/(Si+C) of the second surface layer can be 0.50 or more and 0.80 or less.
    Type: Grant
    Filed: July 20, 2009
    Date of Patent: May 1, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomohito Ozawa, Kazuyoshi Akiyama, Yuu Nishimura
  • Patent number: 8148038
    Abstract: An image bearing member including an electroconductive substrate, a charge generating layer located overlying the electroconductive substrate, a charge transport layer located overlying the charge generating layer, the charge transport layer comprising a charge transport material and a protective layer having a thickness of from 3 to 15 ?m located overlying the charge transport layer, wherein the density of the charge transport material in the protective layer at depth of 2 ?m from the surface of the charge transport layer satisfies the following relationship: 10(%)?(Charge transport material)/{(Radical polymerizable monomer having a charge transport structure)+(Radical polymerizable monomer having no charge transport structure)+(Charge transport material)}×100?30(%).
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: April 3, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Yukio Fujiwara, Tetsuro Suzuki, Hiroshi Tamura, Hiroshi Ikuno, Hidetoshi Kami, Takafumi Iwamoto
  • Patent number: 8148039
    Abstract: An aromatic silicon-containing compound has the formula: Ar—[X-L-SiRn(OR?)3-n]m where Ar represents an aromatic group, X represents a divalent or trivalent group; L represents a divalent linking group; R represents a hydrogen atom, an alkyl group or an aryl group; R? represents an alkyl group having 1 to 5 carbon atoms; n is an integer of from 0 to 2; and m is an integer of from 1 to 5. The aromatic silicon-containing compound can be used in electrophotographic photoreceptors, particularly in outmost protective layers of such electrophotographic photoreceptors.
    Type: Grant
    Filed: September 14, 2009
    Date of Patent: April 3, 2012
    Assignee: Xerox Corporation
    Inventors: Yu Qi, Nan-Xing Hu, John F. Graham, Timothy P. Bender, Ah-Mee Hor, Yvan Gagnon, Cheng-Kuo Hsiao