Post Imaging Process, Finishing, Or Perfecting Composition Or Product Patents (Class 430/97)
  • Patent number: 9348245
    Abstract: A toner, including: a crystalline resin; a non-crystalline resin; and a colorant, wherein the toner has a sea-island structure which includes a sea containing the crystalline resin and an island containing the non-crystalline resin and the colorant, wherein the island is 1.0 ?m or less in domain diameter, and wherein the toner is 1.7×104 Pa or less in storage elastic modulus at 160° C.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: May 24, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Tatsuya Morita, Kazumi Suzuki, Shingo Sakashita, Masana Shiba, Taichi Nemoto, Yoshitaka Yamauchi, Azumi Miyaake, Rintaro Takahashi
  • Patent number: 9115464
    Abstract: This invention relates to colored polymer particles preferably with surface functionality for charge retention, a process for their preparation, the use of these particles for the preparation of an electrophoretic device, color electrophoretic displays comprising such particle, and new water-soluble dyes.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: August 25, 2015
    Assignee: Merck Patent GmbH
    Inventors: Nils Greinert, Louise Diane Farrand, Mark James, Ashley Nathan Smith, Mark John Goulding, Daniel Walker, Safyan Khan, Paul Reynolds, Susan Hawkins, Roy Hughes
  • Patent number: 9112432
    Abstract: Provided are flexible piezoelectric generators and methods of manufacturing the same. The piezoelectric generator includes a first insulation layer disposed on a first electrode, a piezoelectric structure disposed on the first insulation layer, a second insulation layer disposed on the piezoelectric structure, and a second electrode disposed on the second insulation layer.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: August 18, 2015
    Assignees: SAMSUNG ELECTRONICS CO., LTD., GEORGIA TECH RESEARCH CORPORATION
    Inventors: Young-jun Park, Zhong-lin Wang, Sang-min Lee
  • Patent number: 9104083
    Abstract: A recording medium includes a first substrate; a second substrate; and an image recording layer provided between the first substrate and the second substrate, wherein the image recording layer has insulating properties and multiple cells or microcapsules, each of which encapsulates at least one of electrophoresis particles or magnetophoresis particles, a dispersion medium, and a thermoreversible gelling agent, wherein at least one of the first substrate or the second substrate contains fillers.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: August 11, 2015
    Assignee: RICOH COMPANY, LTD.
    Inventors: Nozomu Tamoto, Daiki Yamashita
  • Patent number: 9052671
    Abstract: Provided herein is a surface treatment method of oil contaminated xerographic prints which increases the adhesion of the print to levels close to the values corresponding to the original uncontaminated paper. Subjecting the contaminated surface to corona treatment alone and in combination with ultraviolet (UV) radiation and ozone can change the chemical structure of the surface of the paper in such a way that a highly polar surface is created as a consequence of this treatment, leading to enhanced adhesion properties of the xerographic print.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: June 9, 2015
    Assignee: XEROX CORPORATION
    Inventors: Guiqin Song, Edward G. Zwartz, Nicoleta Mihai, Nan-Xing Hu, T. Brian McAneney
  • Patent number: 8977180
    Abstract: A fixing device includes a curved member that supports a recording medium on which an image is formed by an image forming material that absorbs light and is fixed, and an irradiating portion that irradiates the curved member with light from the recording medium side, wherein the light axis of the light does not intersect with a center axis of the curved member, and is substantially perpendicular to a tangential line in a middle point in a transporting direction of the recording medium in a region of the curved member supporting the recording medium.
    Type: Grant
    Filed: April 9, 2013
    Date of Patent: March 10, 2015
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Tomokazu Akuta
  • Publication number: 20150030819
    Abstract: Toner contains a binder resin, a releasing agent, and a tri- or higher metal salt, wherein the toner has a weight average molecular weight (Mw) of from 7,000 to 10,000, a ratio of the weight average molecular weight (Mw) to a number average molecular weight (Mn) of 5 or less, and an acid value of from 6 mgKOH/g to 12 mgKOH/g, wherein the binder resin is a polyester resin, wherein the releasing agent is a monoester wax.
    Type: Application
    Filed: July 17, 2014
    Publication date: January 29, 2015
    Inventors: Yu Naito, Kazumi Suzuki, Yoshitaka Yamauchi, Masashi Nagayama, Hisashi Nakajima, Saori Yamada
  • Publication number: 20140308481
    Abstract: A method for manufacturing a porous flexible sheet according to the present disclosure includes forming a layer that includes a mixture including thermoplastic resin particles and inorganic particles and thermally fusing the thermoplastic particles to each other and to the inorganic particles while keeping at least a part of clearances between the particles.
    Type: Application
    Filed: April 10, 2014
    Publication date: October 16, 2014
    Applicants: CASIO ELECTRONICS MANUFACTURING CO., LTD., CASIO COMPUTER CO., LTD.
    Inventor: Satoshi MITSUI
  • Patent number: 8828633
    Abstract: To obtain a toner which has excellent charge rise and stability, tends to have a sharp charge distribution, has excellent pigment dispersion properties, exhibits no disarray in an image even during a high-speed copying operation, and can stably output high-resolution images. A toner comprising toner particle containing a binder resin, a colorant, resin PA, and resin PB, wherein the resin PA has unit A represented by Formula (1), the resin PB has unit B represented by Formula (2), a content “a” of the unit A in the toner particle is 2.00 ?mol/g or more, and a molar ratio b/a of the content “a” and a content “b” of the unit B in the toner particle is 0.10 or more and 10.00 or less.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: September 9, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hitoshi Itabashi, Takashi Kenmoku, Harumi Takada
  • 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
  • Publication number: 20130295502
    Abstract: A method is used to provide a toner image with a metallic effect. After forming a latent image, it is developed with metallic dry toner particles to form a developed toner image that is transferred and fixed to a receiver material. Each metallic dry toner particle consists essentially of a polymeric binder phase and non-conductive metal oxide particles. Before fixing, the metallic dry toner particle has a mean volume weighted diameter (Dvol) of at least 15 ?m and up to and including 40 ?m. The non-conductive metal oxide particles are present in an amount of 20-50 weight %. The ratio of the metallic dry toner particle Dvol to the average equivalent circular diameter (ECD) of the non-conductive metal oxide particles in the metallic dry toner particles, before fixing, is greater than 0.1 and up to and including 10.
    Type: Application
    Filed: April 30, 2013
    Publication date: November 7, 2013
    Inventors: Dinesh Tyagi, Louise Granica, Kevin D. Lofftus
  • Publication number: 20130177846
    Abstract: To provide a toner, containing: a binder resin; a colorant; a releasing agent; and a crystalline polyester resin, wherein the toner satisfies the following formulae (1) to (3): 40° C.?X?55° C. Formula (1) 85° C.?Y?92° C. Formula (2) 35° C.?Y?X?50° C. Formula (3) where X is an onset temperature and Y is an endset temperature of an endothermic peak on a differential scanning calorimetry (DSC) curve of the toner as measured by a differential scanning calorimeter (DSC).
    Type: Application
    Filed: September 15, 2011
    Publication date: July 11, 2013
    Inventors: Naohiro Watanabe, Tsuyoshi Sugimoto, Mamoru Hozumi, Tomoyuki Sato, Shinya Hanatani
  • Publication number: 20130171434
    Abstract: The present disclosure relates to polymer particles comprising a polymer matrix having a coating of an inorganic semimetal oxide or metal oxide, wherein the polymer matrix has at least one first functional group A and at least one second functional group B, both functional groups A and B being able to enter into at least one covalent bond with one another, functional group A being selected from the group consisting of an azide group, C—C double bond, C—C triple bond, aldehyde group, ketone group, imine group, thioketone group and thiol group, and functional group B being selected from the group consisting of a C—C double bond, C—C triple bond, C—N triple bond, diene group, thiol group and amine group.
    Type: Application
    Filed: September 7, 2011
    Publication date: July 4, 2013
    Inventors: Thomas Hirth, Achim Weber, Kristin Borchers, Stefan Güttler
  • Patent number: 8431293
    Abstract: A method of recycling an image forming material comprising the steps of holding a toner image formed by employing toner particles in a toner holding layer formed on an image supporting substrate to form a first generation image print, separating the toner particles from the first generation image print; and recycling the separated toner particles to form a second generation image print by holding a toner image formed by employing the separated toner particles in a toner holding layer formed on an image supporting substrate, provided that the image forming material comprises at least toner particles, wherein Condition (1) 0.9?B/A?0.1 and Condition (2) 1?C/A?0.9 are satisfied, A, B and C representing particle shape factors of original toner particles, toner particles held in the image holding layer of the first generation image print; and separated toner particles, respectively.
    Type: Grant
    Filed: April 26, 2010
    Date of Patent: April 30, 2013
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Mitsutoshi Nakamura, Shigenori Kouno, Masaharu Matsubara
  • Publication number: 20130101933
    Abstract: An image is formed with an electrostatic latent image-developing toner that includes toner base particles and titanium oxide serving as an external additive. The toner base particles containing a binder resin, a colorant, and a charge control agent. The titanium oxide is attached to surfaces of the toner base particles and containing titanium oxide A and titanium oxide B. Each of the titanium oxide A and the titanium oxide B has a predetermined particle diameter and a predetermined volume resistivity. The liberation rate of each of the titanium oxide A and the titanium oxide B in the toner is within a predetermined range.
    Type: Application
    Filed: October 24, 2012
    Publication date: April 25, 2013
    Applicant: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventor: Kyocera Document Solutions Inc.
  • Patent number: 8374538
    Abstract: A sheet humidifier which executes a humidifying process to a sheet, the sheet humidifier including: a pair of humidifying rollers each of which has a first surface layer formed of rubber containing plasticizer, the pair of humidifying rollers nipping and conveying the sheet; and two water supply rollers each of which has a second surface layer formed of rubber containing the same kind of plasticizer as the plasticizer of the first surface layer, the two water supply rollers contacting each of the pair of humidifying rollers and supplying water to the each of the pair of humidifying rollers, wherein a hardness of the first surface layer is higher than the second surface layer.
    Type: Grant
    Filed: July 13, 2010
    Date of Patent: February 12, 2013
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Masashi Kougami, Toshio Shida
  • Publication number: 20120115081
    Abstract: An electrostatic image developing toner including: a toner particle containing a binder resin having a polyester resin and a coloring agent; and a non-colored particle containing a polyester but not containing a coloring agent and having a shape factor SF1 of not more than 110, wherein an amount of Sn element contained in the non-colored particles is larger than an amount of Sn element contained in the toner particle.
    Type: Application
    Filed: April 20, 2011
    Publication date: May 10, 2012
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Hitomi AKIYAMA, Junichi TOMONAGA
  • Publication number: 20120028183
    Abstract: The developing method includes developing an electrostatic latent image on an image bearing member with a two-component developer including a toner and a carrier and born on at least one developer bearing member, whose surface moves at a linear speed of from 300 mm/sec to 2,000 mm/sec. The carrier includes a particulate core material; and a cover layer located on a surface of the core material and including a crosslinked material obtained by crosslinking a resin including a first unit having a specific tris(trialkylsiloxy) silyl group and a second unit having a specific alkoxysilyl group having a crosslinking ability. Each of the first unit and the second unit is included in the resin in a molar ratio of from 0.1 to 0.9 based on all the units included in the resin.
    Type: Application
    Filed: July 19, 2011
    Publication date: February 2, 2012
    Inventors: Hisashi NAKAJIMA, Kimitoshi Yamaguchi, Shigenori Yaguchi, Hitoshi Iwatsuki, Toyoaki Tano, Mariko Takii, Minoru Masuda, Koichi Sakata, Saori Yamada, Hiroyuki Kishida
  • Publication number: 20110311908
    Abstract: The invention relates to a method and a device that permit the production of an optionally multi-colored film in a simple and cost-effective manner. In this method for the production of a film, toner is first applied to a transport belt with the use of at least one printing unit in such a manner that an essentially uninterrupted toner layer is formed on the transport belt. The toner on the transport belt is then heated with at least one first heat source to a temperature above a melting point of the toner and is subsequently cooled to below the melting point of the toner. Finally, the toner is removed from the transport belt as a cohesive material layer. The device comprises a transport belt, at least one printing unit arranged for applying a toner to the transport belt, and at least one heat source.
    Type: Application
    Filed: November 30, 2009
    Publication date: December 22, 2011
    Inventor: Detlef Schulze-Hagenest
  • Publication number: 20110294060
    Abstract: To provide a toner for developing an electrostatic charge image, which is free from fogging even by means of a high speed and long operating life machine and which brings about no OPC filming or soiling of components. A toner for developing an electrostatic charge image, which contains at least a binder resin and a colorant, wherein the toner has silica particles satisfying at least the following (1) to (3) and particles having an electrostatic property antipolar to the silica particles: (1) the average primary particle diameter is at least 60 nm and at most 300 nm, (2) the moisture content is at most 1.0 mass %, and (3) the absolute specific gravity is at least 2.0 and at most 2.4.
    Type: Application
    Filed: May 25, 2011
    Publication date: December 1, 2011
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventor: Shiro YASUTOMI
  • Publication number: 20110255885
    Abstract: A first image forming unit includes a first developing unit that develops a latent image, and a second image forming unit includes a second developing unit that develops a latent image. A transfer unit transfers an image formed by at least one of the first and second image forming units onto a recording medium. A controller performs control to form a transfer image on the recording medium through at least one of a first operation and a second operation. In the first operation, images formed by the first and second image forming units are transferred onto the recording medium as transfer images. In the second operation, the image formed by the first image forming unit is transferred onto the recording medium as a transfer image. A stopping unit stops operation of the second developing unit when the number of transfer images formed through the second operation reaches a preset value.
    Type: Application
    Filed: October 28, 2010
    Publication date: October 20, 2011
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Satoru YUGETA, Masanori KATO
  • Patent number: 8005415
    Abstract: A tandem color electrostatographic printer apparatus has five or more color printing stations or modules for applying respective color separation toner images to a receiver member to form a pentachrome color image in a single pass. A fuser station fuses the pentachrome color image. A clear toner overcoat is then applied to the fused pentachrome toner image and enhanced glossing of the image is provided by a belt glosser to improve color gamut.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: August 23, 2011
    Assignee: Eastman Kodak Company
    Inventors: Yee S. Ng, Robert C. Logel
  • Patent number: 7977021
    Abstract: An objective is to provide an electrophotographic photoreceptor having a protective layer in which no unevenness is generated in a coated layer even though a coating solution containing a large addition amount of metal oxide is coated, mechanical strength of a protective layer is high; productivity is high with long life of the coating solution because of no sedimentation of metal oxide, electrical resistivity and mechanical strength are satisfactory, and metal oxide generating no coated layer defect together with no light scattering caused by dispersion failure is dispersed, and also to provide an image forming method and an image forming apparatus employing the electrophotographic photoreceptor. Also disclosed is an electrophotographic photoreceptor possessing a conductive support, at least a photosensitive layer and a protective layer, wherein the protective layer comprises rutile type titanium dioxide and anatase type titanium dioxide.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: July 12, 2011
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Toshiyuki Fujita, Hirofumi Hayata, Masahiko Kurachi, Kunihiro Ogura
  • Publication number: 20110159424
    Abstract: Provided are a method of forming a toner image and an electrophotographic image forming apparatus including a toner. The method of forming a toner image is performed using a first toner having a yellow color and color coordinate values of a lightness (L) ranging from 91 to 94, a redness (a) ranging from ?11 to ?9, and a yellowness (b) ranging from 77 to 82; a second toner having a magenta color and color coordinate values of a lightness (L) ranging from 56 to 61, a redness (a) ranging from 56 to 61, and a yellowness (b) ranging from ?7 to ?5; and a third toner having a cyan color and color coordinate values of a lightness (L) ranging from 58 to 62, a redness (a) ranging from ?33 to ?30, and a yellowness (b) ranging from ?42 to ?37.
    Type: Application
    Filed: June 4, 2009
    Publication date: June 30, 2011
    Applicant: SAMSUNG FINE CHEMICALS CO., LTD
    Inventors: Dae Woong Choi, Woo Young Yang, Keon Il Kim, Dae Il Hwang, Il Hyuk Kim, Jae Bum Park, Il Sun Hwang, Jae Kwang Hwang, Dong Won Kim, Duck Kyun Ahn
  • Publication number: 20110151363
    Abstract: Disclosed are undercoat layers comprising a metal oxide, a polymer, and a citrate of Formula (I): wherein R1 is H, alkyl, or COR?; wherein R? is alkyl; and wherein R2, R3, and R4 are independently alkyl. The undercoat layers are useful in imaging members because they are easily separated from the substrate. This reduces the number of steps necessary to reclaim the substrate.
    Type: Application
    Filed: December 17, 2009
    Publication date: June 23, 2011
    Applicant: XEROX CORPORATION
    Inventors: Yuhua Tong, Jin Wu, Robert P. Altavela, Edward F. Grabowski, Kent J. Evans, Adilson P. Ramos, Nancy L. Belknap, Helen R. Cherniack
  • Patent number: 7920810
    Abstract: Embodiments of an electrophotography device are disclosed.
    Type: Grant
    Filed: August 15, 2007
    Date of Patent: April 5, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Gadi Oron, Dror Kella, Eran Gonen
  • Patent number: 7877053
    Abstract: By using a high or low viscosity transparent toner, with respect to the other color toners, and different amounts of transparent toner lay-down, the gloss of an image printed by an electrophotographic device may be adjusted. By also applying the transparent toner as a negative mask, the differential gloss of the image may be reduced while still adjusting the gloss of certain portions of the image. Further, because different gloss levels may appear different at different viewing angles, transparent toner may be laid down to encode a transparent image within the image being printed. Such a transparent image may be useful as, for example, an authentication means for a document. Additionally, by varying the gloss levels on particular aspects of a printed image, multiple images of different gloss levels, which are prominent at different viewing angles can be made, thereby, a three-dimensional image effect can be achieved on the printed page.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: January 25, 2011
    Assignee: Eastman Kodak Company
    Inventors: Yee S. Ng, Hwai-Tzuu Tai
  • Publication number: 20110008724
    Abstract: A two-component developer is provided. The two-component developer includes a toner containing a binder resin, a colorant and a release agent, and a resin-coated carrier composed of a carrier core material and a resin coating layer formed on a surface of the carrier core material. The toner has an exposure rate of the release agent on the toner surface of 1.00% or above and 3.07% or below. The carrier core material has an apparent density of 1.86 g/cm3 or more and 2.45 g/cm3 or less. The exposure rate of the release agent of the toner and the apparent density of the carrier core material satisfy the following formula (1): y??1.54x+5.93 ??(1) wherein y represents the exposure rate of the release agent of the toner, and x represents the apparent density of the carrier core material.
    Type: Application
    Filed: July 13, 2010
    Publication date: January 13, 2011
    Inventors: Nobuyuki YOSHIOKA, Takanori Kamoto, Osamu Wada, Tadashi Iwamatsu
  • Patent number: 7858279
    Abstract: Xerographic prints with a toner-based image and an overprint, said overprint based on radiation curable compositions containing a radiation curable oligomer/monomer, at least one photoinitiator and at least one surfactant, are disclosed. The overprints are particularly well-suited for wetting over substrates containing residual fuser oil and reducing or preventing document offset and for protecting xerographic images on substrates subjected to abrasives, heat, and/or sunlight since the compositions protect such images from cracking, fading, and smearing.
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: December 28, 2010
    Assignee: Xerox Corporation
    Inventors: Kurt I. Halfyard, Gordon Sisler, T. Brian McAneney
  • Publication number: 20100291359
    Abstract: The present invention provides an image-recording/pixel-forming coloring composition containing a phthalocyanine type colorant having at least one group selected from alkyl and alkyloxy groups (alkylphthalocyanine type colorant). According to the present invention, there can also be provided a coloring composition containing a phthalocyanine type colorant capable of exhibiting excellent properties when used as an image-recording coloring composition or pixel-forming coloring composition, production processes of the phthalocyanine type colorants, a coloring method, and the like.
    Type: Application
    Filed: May 5, 2010
    Publication date: November 18, 2010
    Applicant: Dainichiseika Color & Chemicals Mfg. Co., Ltd.
    Inventors: Atsushi Nogami, Toshiyasu Fujita, Masanori Takakamo, Shigeru Sakamoto, Michiei Nakamura
  • Publication number: 20100279220
    Abstract: A method of recycling an image forming material comprising the steps of holding a toner image formed by employing toner particles in a toner holding layer formed on an image supporting substrate to form a first generation image print, separating the toner particles from the first generation image print; and recycling the separated toner particles to form a second generation image print by holding a toner image formed by employing the separated toner particles in a toner holding layer formed on an image supporting substrate, provided that the image forming material comprises at least toner particles, wherein Condition (1) 0.9?B/A?0.1 and Condition (2) 1?C/A?0.9 are satisfied, A, B and C representing particle shape factors of original toner particles, toner particles held in the image holding layer of the first generation image print; and separated toner particles, respectively.
    Type: Application
    Filed: April 26, 2010
    Publication date: November 4, 2010
    Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
    Inventors: Mitsutoshi NAKAMURA, Shigenori KOUNO, Masaharu MATSUBARA
  • Publication number: 20100266946
    Abstract: A color particle is disclosed, comprising a color-exhibitive piece which comprises microparticles for structural color and a matrix and is dispersed in a binder resin, wherein the color particle meets the following requirement: 1.5?A/B?5.0 wherein A is a major axis diameter of the color particle and B is a minor axis diameter of the color particle; and an angle of a longitudinal direction of the color-exhibitive piece to a major axis direction of the color particle falls within a range of ±20 degrees.
    Type: Application
    Filed: April 12, 2010
    Publication date: October 21, 2010
    Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
    Inventors: Aya SHIRAI, Tatsuya NAGASE, Motoi NISHIMURA
  • Publication number: 20100261108
    Abstract: An image forming method including a process for forming a transparent toner layer on an image formed on a support, the method including steps of supplying a transparent toner on an image on a support, and heating and then cooling the image on the support having the transparent toner while the image on the support having the transparent toner being in contact with a belt, wherein the transparent toner contains a resin constituted by a polyester and a styrene-acryl copolymer, a monoester compound represented by Formula I, and a hydrocarbon compound having at least one of a branched chain structure and a cyclic structure, R1—COO—R2??Formula I wherein, R1 and R2 are each a hydrocarbon group having 13 to 30 carbon atoms which may have a substituent or not, and R1 and R2 are the same or different.
    Type: Application
    Filed: April 8, 2010
    Publication date: October 14, 2010
    Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
    Inventors: Takao YAMANOUCHI, Kazue NAKAMURA, Ryuichi HIRAMOTO, Michiyo FUJITA
  • Publication number: 20100159382
    Abstract: A carrier has an impedance Z having a frequency dependence, obtained by alternating current impedance measurement. When the frequency dependence is fitted by a fitting function, parameter ? lies in a range of 0.70 to 0.90 in an electric field of 103 V/cm.
    Type: Application
    Filed: December 7, 2009
    Publication date: June 24, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Juun Horie, Takeshi Yamamoto, Manami Haraguchi, Kenta Kubo, Tomoaki Miyazawa, Hirokazu Usami, Yoshinobu Baba, Koh Ishigami, Kazuo Uchida, Katsuhiro Watanabe, Jumpei Shirono
  • Patent number: 7667047
    Abstract: A colorant contains a crystal of a compound represented by the following formula (1): the crystal having a crystal form showing main peaks at interplanar spacings d of 3.45±0.5 ?, 3.63±0.5 ?, 4.23±0.5 ?, 6.65±0.5 ?, and 7.84±0.5 ? in powder X-ray diffraction pattern with CuK? radiation.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: February 23, 2010
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yuka Ito, Shinji Hasegawa, Minquan Tian, Miho Watanabe, Kazuhiko Hirokawa, Kazunori Anazawa, Tomoko Miyahara, Takashi Matsubara, Makoto Furuki
  • Patent number: 7625683
    Abstract: An image forming method is disclosed, the method includes forming a latent image by irradiating an organic photoreceptor by a semiconductor laser or a light emission diode emitting light of a wavelength of from 350 to 500 nm, and developing the latent image by a developer containing a toner to form a toner image, the organic photoreceptor having a surface layer comprising a binder and fluororesin fine particles having an average primary particle diameter of not less than 0.02 ?m and less than 0.20 ?m.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: December 1, 2009
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Shigeaki Tokutake, Masao Asano, Keiichi Inagaki
  • Publication number: 20090291378
    Abstract: Provided is a set of toners comprising a yellow toner, a magenta toner, a cyan toner and a black toner for forming a full color image with an electrophotographic method, wherein the yellow toner comprises toner particles containing at east one pigment selected from the group consisting of C. I. Pigment Yellow 74, C. I. Pigment Yellow 139, C. I. Pigment Yellow 180, C. I. Pigment Yellow 185 and C. I.
    Type: Application
    Filed: May 19, 2009
    Publication date: November 26, 2009
    Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
    Inventors: Naohiro HIROSE, Kaori SOEDA, Shinya OBARA, Tatsuya FUJISAKI, Yohei OHNO
  • Publication number: 20090291376
    Abstract: Disclosed is a full-color image forming method by which an image exhibiting comfortable image quality reliably suitable for a human visual system can be obtained in such a way that a halftone image exhibiting excellent granularity and evenness thereof is acquired.
    Type: Application
    Filed: May 1, 2009
    Publication date: November 26, 2009
    Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
    Inventors: Shiro HIRANO, Mikio KOUYAMA, Kenji HAYASHI, Hiroyuki YASUKAWA
  • Publication number: 20090291377
    Abstract: A set of toners comprising a yellow toner, a magenta toner, a cyan toner and a black toner for forming a full color image with an electrophotographic method, wherein the yellow toner comprises toner particles containing at least one pigment selected from the group consisting of C. I. Pigment Yellow 74, C. I. Pigment Yellow 139, C. I. Pigment Yellow 155, C. I. Pigment Yellow 180 and C. I.
    Type: Application
    Filed: May 20, 2009
    Publication date: November 26, 2009
    Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
    Inventors: Naohiro HIROSE, Meizo Shirose, Kaori Soeda, Shiro Hirano, Shinya Obara
  • Publication number: 20090239168
    Abstract: Disclosed are a toner for developing an electrostatic image, a full color toner kit and an image formation method layer, the toner comprising at least a resin and a colorant, wherein the colorant includes quinacridone pigment having a number average primary particle size of from 30 to 150 nm and having a ratio of a long axis length to a short axis length of from 1.0 to 2.0.
    Type: Application
    Filed: March 20, 2009
    Publication date: September 24, 2009
    Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
    Inventors: Mikio KOUYAMA, Hiroshi YAMAZAKI, Ken OHMURA, Kenji HAYASHI
  • Publication number: 20090231406
    Abstract: An image recording composition including a curable material that is cured upon application of an external stimulus, and a cationic resin having a cationic functional group.
    Type: Application
    Filed: December 1, 2008
    Publication date: September 17, 2009
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Yoshiro Yamashita, Ken Hashimoto, Kentaro Ageishi
  • Publication number: 20090220878
    Abstract: An exposure unit which exposes photoconductive drums having rotary axes thereof arranged parallel to each other on a single plane by light beams, includes one or more polygon mirrors each having a plurality of reflection surfaces, where the one or more polygon mirrors rotate about a common rotary axis. Each light beam is deflected by the one or more polygon mirrors and scans the surface of a corresponding photoconductive drum. The common rotary axis is separated from the rotary axes of the photoconductive drums by identical distances along respective normals which are perpendicular to both the common rotary axis and the rotary axes of the photoconductive drums.
    Type: Application
    Filed: February 25, 2009
    Publication date: September 3, 2009
    Inventors: TATSUYA MIYADERA, YOSHIYUKI SHIMIZU, HIDEYUKI MASUMOTO, TAKAFUMI MIYAZAKI, KOZO YAMAZAKI
  • Publication number: 20090214974
    Abstract: Disclosed is a toner for developing an electrostatic image, a full color toner kit comprising the toner and an image formation method employing the a full color toner kit, the toner comprising at least a resin and a colorant, wherein the colorant includes C.I. Pigment Blue 60 having a powder X-ray diffraction peak (2?) at 6.3±0.2° and 13.0±0.2°.
    Type: Application
    Filed: February 19, 2009
    Publication date: August 27, 2009
    Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
    Inventors: Mikio KOUYAMA, Hiroshi YAMAZAKI, Ken OHMURA, Kenji HAYASHI
  • Publication number: 20090214968
    Abstract: A mixture of bisamine compounds comprising a bisamine compound represented by Formula (1) and a bisamine compound represented by Formula (2): A-X-A??Formula (1) A-X—B??Formula (2) wherein, A and B represent a different substituted amino group represented by Formula (3), X represents a bivalent linkage group: wherein, each of Ara and Arb independently represents an aryl group which may have a substituted group, and Arc represents an arylene group which may have a substituted group, and Ara, Arb and Arc may be combined to form a ring structure.
    Type: Application
    Filed: February 18, 2009
    Publication date: August 27, 2009
    Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
    Inventors: Shinichi Hamaguchi, Toyoko Shibata, Tomoko Sakimura
  • Publication number: 20090214971
    Abstract: An image-forming method includes a process in which a toner is supported and transported on the surface of a toner supporting member placed face to face to an electrostatic latent image-supporting member, and electrostatic latent images formed on the electrostatic latent image-supporting member is developed by the toner; and a process in which a two-component developer containing the toner and a carrier is supported on the surface of a developer-supporting member placed face to face to the toner supporting member and the toner is supplied onto the toner-supporting member. The developer includes toner particles containing a binder resin and a colorant; a carrier charging the toner particles in friction-contact with the toner particles; and reverse polarity particles and homopolarity particles respectively charged to polarity reversed to and the same polarity as polarity of the toner particles charged in friction-contact with the carrier.
    Type: Application
    Filed: February 11, 2009
    Publication date: August 27, 2009
    Applicant: Konica Minolta Business Technologies, Inc.
    Inventors: Eiichi Yoshida, Makoto Kobayashi, Kazue Nakamura
  • Publication number: 20090191476
    Abstract: The present invention relates to a thermoplastic material comprising polymer, at least one charge transfer agent, wherein the charge transfer agent is substantially colourless when neutral, but which develops colour when a charge is acquired, and at least one photo acid generating agent. The present invention further relates to a method of processing thermoplastic material to form a plastic article, wherein the method comprises the step of processing the thermoplastic material at a temperature greater than the melt temperature, Tm, of the thermoplastic, wherein the thermoplastic material comprises polymer and at least one charge transfer agent, wherein the charge transfer agent is substantially colourless when neutral, but which develops colour when a charge is acquired, and at least one photo acid generating agent, and wherein the method further comprising the step of irradiating the plastic article to colour at least a region of the plastic article.
    Type: Application
    Filed: January 22, 2009
    Publication date: July 30, 2009
    Inventors: Neil John Rogers, Christopher Lamb, Anthony Nicholas Jarvis
  • Publication number: 20090162772
    Abstract: An image forming method, including forming an electrostatic latent image on a latent image bearer; forming a thin layer of a toner on a developing roller with a thin-layer forming member; and feeding the toner with the developing roller to the electrostatic latent image to develop the electrostatic latent image, wherein the toner is a pulverized toner, including a binder resin; a wax; and an inorganic particulate material, and wherein the following relationships (1) to (3) are satisfied: 300?v?100??(1) 10?R?5??(2) R2/12?A?150/v??(3) wherein v represents a peripheral speed of the developing roller; R represents a diameter of the developing roller; and A represents an exposure of the wax on the surface of the toner.
    Type: Application
    Filed: December 1, 2008
    Publication date: June 25, 2009
    Inventors: Kazuoki FUWA, Shinobu Fujiki, Yutaka Naitoh, Yasuhide Ohkubo, Shin Murayama
  • Publication number: 20090142680
    Abstract: A full-color image forming method, including: developing an electrostatic latent image with a two-component developer, including: a toner including: a binder resin, a colorant, and a layered inorganic mineral in which ions between its layers are at least partially modified with an organic ion; and a carrier, wherein the toner includes a black, a yellow, a magenta and a cyan toner and the carrier is formed of a magnetic particulate material coated with a resin, wherein each of the toners are contained in each toner cartridge comprising the carrier, from which the two-component developer is fed into each image developer developing each of the electrostatic latent image and discharging the extra developer therefrom, and wherein each of the toners has a aerated apparent density not greater than 0.40 and a difference of the aerated apparent density between each of the toners is not greater than 0.10.
    Type: Application
    Filed: November 14, 2008
    Publication date: June 4, 2009
    Inventors: Naohito SHIMOTA, Junichi Awamura, Masahide Yamada
  • Publication number: 20090142684
    Abstract: Disclosed is a toner which can be charged at a designated level even when a lot of print is carried out with severity of charging by stirring and when the printing is carried out under the low temperature-low humidity or the high temperature-high humidity condition. A toner comprising (a) a particle comprising a resin and a colorant; and (b) a titanate compound on the surface of the particle, in which the titanate compound contains iron in an amount of from 100 ppm to 1,000 ppm.
    Type: Application
    Filed: November 17, 2008
    Publication date: June 4, 2009
    Inventors: Masahiro Anno, Yukio Hosoya
  • Patent number: 7521165
    Abstract: A varnish composition and the method of making a varnish composition comprising at least one latex emulsion, water, at least one amino alcohol or at least one alkali base and at least one surfactant.
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: April 21, 2009
    Assignee: Xerox Corporation
    Inventors: Christine D Anderson, T Brian McAneney, Gordon Sisler, Kurt I Halfyard