Composition Or Layers Patents (Class 399/333)
  • Patent number: 10845743
    Abstract: An electrophotographic member including: a base member; an elastic layer having a thickness of from 100 ?m to 500 ?m, and containing a cured product of an addition-curable silicone rubber composition; and a cured product layer arranged between the base member and the elastic layer, the cured product layer containing a cured product of a composition containing an organopolysiloxane having a Si—H group and a silane coupling agent having an alkenyl group. A peel adhesive strength between the elastic layer and the base member is a specific range. The elastic layer undergoes a cohesive failure in a peel test from the base member. The ratio (HU2/HU1) of a universal hardness HU2 on the inner surface of the elastic layer to a universal hardness HU1 at a position reached by cutting the elastic layer from its outer surface in its depth direction by 10 ?m is a specific range.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: November 24, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Katsuya Abe, Katsuhisa Matsunaka, Kazuo Kishino, Matsutaka Maeda
  • Patent number: 10815369
    Abstract: The invention provides a composition capable of providing a molded article that has excellent heat resistance and a small weight change against oxygen plasma exposure and fluorine plasma exposure during a semiconductor manufacturing step. The composition contains a fluorine-containing polymer and a hyperbranched polymer of a cage silsesquioxane with a specific structure.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: October 27, 2020
    Assignees: Akita University, DAIKIN INDUSTRIES, LTD.
    Inventors: Kazuya Matsumoto, Mitsutoshi Jikei, Sumito Yamakawa, Tadatake Sakurada, Fumihiro Kamiya, Tsuyoshi Noguchi
  • Patent number: 10809654
    Abstract: A pressure roller, and the pressure roller to be used in a fixing apparatus of in an image forming apparatus, the fixing apparatus configured to heat a toner image formed on a recording material and fix the toner image on the recording material, the pressure roller including a first elastic layer, and a second elastic layer provided on an outside of the first elastic layer, wherein a thermal conductivity of the first elastic layer is higher than a thermal conductivity of the second elastic layer, and wherein the first elastic layer contains a plurality of void portions, hole pathway portions joining the plurality of void portions to each other, and a needle-shaped high thermal conductive filler.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: October 20, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Sho Taguchi, Naofumi Murata, Katsuhisa Matsunaka, Yutaka Arai
  • Patent number: 10802433
    Abstract: A fixing member includes: a substrate layer including a resin; a first metal layer that is provided on an outer peripheral surface of the substrate layer and includes Cu; a second metal layer that is provided on an outer peripheral surface of the first metal layer so as to be in contact with the first metal layer, includes Ni, and has an average crystal grain size of 0.15 ?m to 0.19 ?m; and an elastic layer that is provided on an outer peripheral surface of the second metal layer.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: October 13, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Yusuke Watanabe, Tomoko Suzuki, Tomotake Inagaki, Hideaki Ohara, Ryohei Yoshikawa
  • Patent number: 10725405
    Abstract: A fixing device including a rotatable tubular film, a heater including a substrate and a heat generating resistor, the heater including a first surface in contact with an inner surface of the film and a second surface opposite to the first surface, the heater extending in a longitudinal direction of the substrate, and a heat conducting member extending in the longitudinal direction and including a heater contact portion in contact with the second surface. The heat conducting member includes a film contact portion at a position adjacent to the first surface, the film contact portion being in contact with the inner circumferential surface, and on one side in the longitudinal direction, the heat generating resistor extends outside of a longitudinal end portion of the film contact portion, and the heater contact portion extends outside of the film contact portion.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: July 28, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomoo Akizuki, Masahiko Suzumi, Tatsuya Kinukawa, Takeharu Nakada, Ryo Morihara
  • Patent number: 10639882
    Abstract: A transfer member for transfer-type image formation according to the present invention includes, in this order, a heat insulating layer, a heat storage layer and a top layer having an image formation surface, and satisfies Expressions 1 to 6: Expression 1: 0.5?t1?1.5 (t1 represents the thickness [mm] of the heat insulating layer), Expression 2: 0.05?t2?0.50 (t2 represents the thickness [mm] of the heat storage layer), Expression 3: t3?0.020 (t3 represents the thickness [mm] of the top layer), Expression 4: ?1?0.20 (?1 represents the thermal conductivity [W/(m·K)] of the heat insulating layer), Expression 5: ?2?0.23 (?2 represents the thermal conductivity [W/(m·K)] of the heat storage layer), and Expression 6: C2?1.52 (C2 represents the volume specific heat [MJ/(m3·K)] of the heat storage layer).
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: May 5, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yoshikazu Saito, Mitsutoshi Noguchi, Tetsuya Kosuge, Midori Kushida, Tsukasa Sano
  • Patent number: 10627757
    Abstract: A fixing device includes: a belt; a heating element that heats the belt; and a pressure member that faces the belt and forms a nip portion between the pressure member and the belt. A dielectric relaxation rate of the belt 10 seconds after applying a corona discharge at 7000V to the belt is greater than or equal to 9.5% and less than or equal to 28.9%.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: April 21, 2020
    Assignee: Oki Data Corporation
    Inventor: Takaaki Furukawa
  • Patent number: 10591856
    Abstract: A roller for use with an image fixing device for fixing an image on a recording material includes a core metal, and an elastic layer provided around the core metal. In the elastic layer, a filler bundle including a plurality of fiber-like fillers is dispersed.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: March 17, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yutaka Sato, Kazuhiro Doda, Kohei Wakatsu, Tsuguhiro Yoshida, Jun Miura
  • Patent number: 10558150
    Abstract: An image forming apparatus includes an image holding member, a charging unit that charges the surface of the image holding member, an electrostatic latent image forming unit that forms an electrostatic latent image on the charged surface of the image holding member, a developing unit that includes a developer containing toner particles containing a release agent having a melting temperature ranging from 60° C. to 100° C.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: February 11, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Katsuyuki Kitajima, Masataka Kuribayashi, Takafumi Koide, Teppei Yawada, Shota Oshima
  • Patent number: 10534297
    Abstract: Provided is an electrophotographic rotatable pressing member having further durability. The electrophotographic rotatable pressing member includes: a substrate; and an elastic layer formed on the substrate, the elastic layer containing a silicone rubber and a needle-shaped filler dispersed in the silicone rubber and having hollow parts, wherein, when cutting the elastic layer along a cross section including a center axis of the substrate in a longitudinal direction of the electrophotographic rotatable pressing member, and a total of each sectional area of the hollow parts in a unit area A2 of a cross-sectional surface is defined as A1, a standard deviation of an area ratio A1/A2 is 0.08 or less.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: January 14, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Jun Miura, Yutaka Arai, Takeshi Suzuki, Akeshi Asaka, Shigeaki Takada, Masaaki Takahashi, Yo Imaizumi
  • Patent number: 10527980
    Abstract: A fixing device includes a rotatable fixing belt; a contact portion that comes into contact with an inner peripheral surface of the fixing belt in a width direction; a holding portion disposed opposite the inner peripheral surface of the fixing belt to guide and hold the fixing belt; a pressing unit that presses the fixing belt against the contact portion; a first protrusion and a second protrusion respectively disposed at portions of the holding portion upstream and downstream of the contact portion in a rotation direction of the fixing belt to come into contact with the inner peripheral surface of the fixing belt in the width direction; and a lubricant applied to the inner peripheral surface of the fixing belt. At least one of the first protrusion and the second protrusion has a recess at at least a center portion of the protrusion in a longitudinal direction of the protrusion.
    Type: Grant
    Filed: August 19, 2018
    Date of Patent: January 7, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Jouta Kobayashi
  • Patent number: 10503104
    Abstract: A fixing device for an envelope includes an endless belt, a driving rotatable member, and a pad that includes a base portion, a first projecting portion projecting from the base portion toward the driving rotatable member at an upstream end in a feeding direction of the envelope, a second projecting portion projecting from the base portion toward the driving rotatable member at a downstream end in the feeding direction of the envelope, and a recess portion, provided between the first projecting portion and the second projecting portion in the feeding direction of the envelope. When a fixing process is performed on the envelope, an inner surface of the endless belt is in contact with both of the first projecting portion and the second projecting portion, and is spaced from the recess portion.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: December 10, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Daigo Matsuura
  • Patent number: 10429785
    Abstract: A fixing belt having high separability is provided. The fixing belt includes a base layer made of a heat-resistant resin, an intermediate layer made of a heat-resistant elastic material disposed on the base layer, and a surface layer made of a fluororesin disposed on the intermediate layer. The surface layer contains 5 to 15 mass % of carbon black having a primary average particle diameter of 10 to 50 ?m.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: October 1, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Izumi Mukoyama, Naoko Uemura, Akiko Kawamura, Asao Matsushima
  • Patent number: 10353330
    Abstract: Provided is an electrophotographic rotatable pressing member having further durability. The electrophotographic rotatable pressing member includes: a substrate; and an elastic layer formed on the substrate, the elastic layer containing a silicone rubber and a needle-shaped filler dispersed in the silicone rubber and having hollow parts, wherein, when cutting the elastic layer along a cross section including a center axis of the substrate in a longitudinal direction of the electrophotographic rotatable pressing member, and a total of each sectional area of the hollow parts in a unit area A2 of a cross-sectional surface is defined as A1, a standard deviation of an area ratio A1/A2 is 0.08 or less.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: July 16, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Jun Miura, Yutaka Arai, Takeshi Suzuki, Akeshi Asaka, Shigeaki Takada, Masaaki Takahashi, Yo Imaizumi
  • Patent number: 10289045
    Abstract: A fixing belt contains a base layer made of a heat-resistant resin, an elastic layer made of an elastic material, and a release layer, laminated in this order. The elastic layer has a linear thermal expansion coefficient of ?4.0×10?4 (1/K) or more and 1.0×10?4 (1/K) or less.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: May 14, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Izumi Mukoyama, Hirofumi Koga, Naoko Uemura, Asao Matsushima
  • Patent number: 10273344
    Abstract: An electrophotographic component includes a substrate and an optional cushioning layer disposed on the substrate. The optional cushioning layer comprises a material selected from the group consisting of silicones, fluorosilicones and fluoroelastomers. An optional release layer is disposed on the substrate and if present, on the optional cushioning layer. The optional release layer comprises a fluoropolymer. The substrate, the optional cushioning layer, the optional release layer, or any combination thereof, comprise a plurality of fluorinated boron nitride nanosheets. The electrophotographic component comprises at least one layer selected from the optional cushioning layer and the optional release layer.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: April 30, 2019
    Assignee: XEROX CORPORATION
    Inventor: Jin Wu
  • Patent number: 10261429
    Abstract: Provided is an electrophotographic member capable of reducing a rise time of a fixing apparatus and preventing occurrence of a defective image due to an electrostatic offset. The electrophotographic member has a substrate, an elastic layer, and a surface layer containing a fluororesin, in this order, the elastic layer has a communication hole of which pores are communicated with each other, and an ionic conductive agent is adhered to an inner wall of the communication hole.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: April 16, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Akeshi Asaka, Shigeaki Takada, Akiyoshi Shinagawa, Koichi Kakubari, Hiroto Ito, Yutaka Arai
  • Patent number: 10216130
    Abstract: A tubular film used for a fixing apparatus includes a heat generating layer, and a first conductive layer and a second conductive layer provided respectively at one end and another end of the film in a longitudinal direction of the film so as to contact the heat generating layer. The first conductive layer and the second conductive layer both have a lower volume resistivity than that of the heat generating layer. A low-resistance layer is formed in an area of the heat generating layer between the first conductive layer and the second conductive layer in the longitudinal direction so as not to contact the first conductive layer and the second conductive layer. The low-resistance layer has a lower volume resistivity than that of the heat generating layer and extends in a circumferential direction of the heat generating layer.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: February 26, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toru Imaizumi, Ken Nakagawa, Takashi Narahara, Takeshi Shinji, Kazuhiro Doda, Kohei Wakatsu
  • Patent number: 10146161
    Abstract: An improved fuser includes a heater using a solid-state heater element with high frequency field propagation to provide an effective increase in the energy conduction through the fusing belt allowing increased throughput rates over conventional conduction systems. The system employs a solid-state heater with internal circuitry to drive a high frequency field though the fuser belt to the elastomeric top coat, which is laced with high frequency receptors. The belt is then heated directly on the surface bypassing thermal conduction interfaces and is also simultaneously heated by conduction from the waste energy of the heater element.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: December 4, 2018
    Assignee: Xerox Corporation
    Inventors: Tab A. Tress, Brian J. Gillis, Allen J. Thompson
  • Patent number: 10126686
    Abstract: An image forming apparatus includes a cleaning unit for a transfer roller. A cleaning unit includes a brush roller, a rotatable member, a first blade and a second blade. The brush roller is electroconductive and contactable with the transfer roller while rotating to electrostatically attract the toner from the transfer roller. The rotatable member is supplied with a voltage of the regular charge polarity of the toner and is contacted with the brush roller in a contact position to electrostatically attract the toner from the brush roller. The first blade contacts the rotatable member in a cleaning portion to scrape a deposited matter from the rotatable member. The second blade is disposed downstream of the cleaning portion and upstream of the contact portion and scrape the deposited matter from the rotatable member with the rotation of the rotatable member.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: November 13, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiya Fukazawa, Yutaka Koga
  • Patent number: 10090085
    Abstract: The present invention relates to a product and fabrication method for a varistor comprising a solid phase of zinc oxide particles substantially uniformly dispersed within a resin media. The varistor of the present invention is synthesized by mixing a substantially homogenous mixture of solid zinc oxide particles and a resin media, and heating the mixture under conditions to melt the resin and suspend the solid zinc oxide particles therein.
    Type: Grant
    Filed: February 15, 2016
    Date of Patent: October 2, 2018
    Assignee: HITACHI CRITICAL FACILITIES PROTECTION PTE. LTD.
    Inventors: Yoshishige Endo, Chee Yeong Andrew Mui, Koji Fukuta
  • Patent number: 10073392
    Abstract: A fixing member includes a base material, an elastic layer, and a surface layer, all of which are laminated in the order in a thickness direction, wherein the surface layer has a porous structure formed by a plurality of pores, each of which has a pore size of less than 1 ?m.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: September 11, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Tomoo Sakimura, Shingo Fujimoto
  • Patent number: 10040939
    Abstract: A polyimide film includes a polyimide, a carbon black present in a quantity between about 0.5 wt % and about 5 wt %, and a fluorine-containing polymer present in a quantity between about 15 wt % and about 40 wt %. The polyimide film can be a single-layer film or a multi-layer film, and has a low dielectric constant and low gloss.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: August 7, 2018
    Assignee: Taimide Technology Incorporation
    Inventors: Chun-Ting Lai, Chih-Wei Lin
  • Patent number: 10025245
    Abstract: A resistance heating element contains a heat-resistant resin and conductive stainless steel fiber coated with a film, and satisfies the following expression (1): 1?(r1/r0)?1.03, where r0 represents the initial resistance value of the resistance heating element, and r1 represents the resistance value of the resistance heating element after allowed to stand at 30° C. and a relative humidity of 80% for one week.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: July 17, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Izumi Mukoyama, Eiichi Yoshida, Susumu Sudo, Akira Ohira
  • Patent number: 9983538
    Abstract: A transfer device includes a power supply control unit, a direct-current (DC) power supply, an alternating-current (AC) power supply, and a transfer unit. The power supply control unit controls a first control signal for controlling a DC voltage and a second control signal for controlling an AC voltage based on a condition relating to image formation. The DC power supply outputs the DC voltage based on the first control signal. The AC power supply selectively outputs, with a particular waveform, either of the DC voltage output from the DC power supply or a superimposed voltage obtained by superimposing the AC voltage determined based on the second control signal on the DC voltage output from the DC power supply. The transfer unit transfers a developer onto a sheet using a voltage output from the AC power supply.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: May 29, 2018
    Assignee: RICOH COMPANY, LTD.
    Inventor: Tomokazu Takeuchi
  • Patent number: 9971287
    Abstract: According to one embodiment, a fixing device includes a fixing belt, an induction current generating part and an auxiliary heat generation part. The fixing belt includes a conductive layer. The induction current generating part faces the fixing belt in a thickness direction. The induction current generating part heats the conductive layer by electromagnetic induction. The auxiliary heat generation part faces the induction current generating part through the fixing belt. The auxiliary heat generation part includes a magnetic member. The magnetic member includes a mesh part. The mesh part has a mesh shape when viewed from the thickness direction of the fixing belt.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: May 15, 2018
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Shuji Yokoyama
  • Patent number: 9853193
    Abstract: The present disclosure relates to a method of making an optical assembly. An optical device is secured in a fixture, the optical device having an optical surface, wherein a silicone film is positioned with respect to the optical surface, the silicone film having a distal surface relative to the optical surface. The method includes, among other features, imprinting the distal surface of the silicone film to create a surface imprint in the distal surface of the silicone film.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: December 26, 2017
    Assignees: Dow Corning Corporation, Dow Corning Toray Co., Ltd.
    Inventors: Masaaki Amako, Steven Swier, Haruna Yamazaki, Shin Yoshida, Makoto Yoshitake
  • Patent number: 9776427
    Abstract: An exposure device includes an optical system member that forms an image of light from a light emitting element array having multiple light emitting elements arranged, an optical system support part that supports the optical system member, and a restraining member that restrains the optical system member to the optical system support part. The optical system support part has sliding parts, which are able to slide relative to the restraining member, formed on a light emitting element side face and an image forming side face in positions opposing the both end parts or the vicinity of both end parts in a longitudinal direction of the optical system support part, and in the both end parts or in the vicinity of the both end parts in the longitudinal direction, the restraining member is formed between the sliding parts and the optical system member, fixed to the optical system member, and slidable in the longitudinal direction relative to the optical system support part.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: October 3, 2017
    Assignee: Oki Data Corporation
    Inventors: Akihiro Yamamura, Eisuke Kuroki
  • Patent number: 9745664
    Abstract: An electromagnetic induction heating element includes a first heating layer 11 formed of electrocast nickel and having an endless-belt-like form; a second heating layer 12 formed of a non-magnetic material; and a coating layer 13 having a thickness of 3 ?m or less, wherein the first heating layer 11, the second heating layer 12, and the coating layer 13 are sequentially stacked.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: August 29, 2017
    Assignee: SYNZTEC CO., LTD.
    Inventor: Minoru Takeda
  • Patent number: 9727012
    Abstract: A member for a fuser assembly of a printer. The member may include a support body and a composite coating disposed on an outer surface of the support body. The composite coating may include a fluororesin and a nanocarbon material dispersed within the fluororesin. The nanocarbon material may be present in a higher concentration proximate the support body and a lower concentration proximate an outer surface of the composite coating. The lower concentration may be less than or equal to about 2 wt % of the nanocarbon material.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: August 8, 2017
    Assignee: XEROX CORPORATION
    Inventors: Suxia Yang, Nan-Xing Hu, Qi Zhang, Sandra J. Gardner, Edward G. Zwartz, Guiqin Song
  • Patent number: 9680134
    Abstract: The present disclosure provides a packaging method, a packaging structure and a display device. The packaging method comprises forming a pattern of a packaging adhesive on a packaging area of a first substrate, and forming a heat dissipating structure on the packaging area of any of the first substrate and a second substrate; attaching the first substrate and the second substrate, and aligning the packaging area of the first substrate with that of the second substrate; illuminating the pattern of the packaging adhesive by a laser beam to melt and frit it, so as to form a packaging adhesive structure between the first and second substrates.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: June 13, 2017
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Jiuxia Yang, Feng Bai, Ruiyong Wang
  • Patent number: 9616654
    Abstract: An imaging member includes a surface layer comprising a fluorosilicone and an infrared-absorbing filler. At least 75% of the siloxane units in the fluorosilicone are fluorinated. Methods of manufacturing the imaging member and processes for variably lithographic printing using the imaging member are also disclosed.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: April 11, 2017
    Assignee: Xerox Corporation
    Inventors: Mandakini Kanungo, Maryna Ornatska, David J. Gervasi, Patrick J. Howe, Santokh S. Badesha, Jack Lestrange, Matthew M. Kelly
  • Patent number: 9606486
    Abstract: An elastic layer includes a needle-shaped filler and a void and has a porosity of 20 vol % or more and 60 vol % or less. The elastic layer contains a first area and a second area. The first area extends from a surface of the elastic layer opposite to a surface facing the mandrel toward the mandrel and has a thickness of 30% of the thickness of the elastic layer. The second area is a central area in a thickness direction of the elastic layer and has a thickness of 40% of the thickness of the elastic layer. The needle-shaped filler in the second area has an orientation degree of 50% or lower. The needle-shaped filler in the first area has an orientation degree higher than that of the needle-shaped filler in the second area.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: March 28, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yutaka Arai, Takeshi Suzuki, Jun Miura, Shigeaki Takada, Toshinori Nakayama, Naoki Akiyama, Daigo Matsuura, Yasuhiro Miyahara, Akeshi Asaka, Shuichi Tamura, Katsuhisa Matsunaka, Shinsuke Takahashi, Hiroto Sugimoto
  • Patent number: 9557693
    Abstract: A fixing device includes a heating rotator and a pressure rotator pressed against the heating rotator to form a fixing nip therebetween, through which a recording medium bearing a toner image is conveyed. A plurality of first recesses is scattered on a circumferential face of the heating rotator. A plurality of second recesses is scattered on a circumferential face of the pressure rotator. Each of the second recesses is greater than each of the first recesses.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: January 31, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventor: Hiroshi Ono
  • Patent number: 9529310
    Abstract: An image heating apparatus includes: an electric energy supplying portion, an endless belt and a heater. The heater includes a substrate, electrode portions including first electrode portions and second electrode portions, a plurality of heat generating portions, and a connecting circuit. The electric energy supplying portion supplies electric energy to the first heat generating portions when a sheet having a predetermined width is heated, and supplies electric energy to the first heat generating portions and the second heat generating portions when a sheet having a width broader than the predetermined width is heated. The connecting circuit includes a single interrupting element configured to interrupt electric energy supply from the electric energy supplying portion to the heater. The interrupting element is provided so as to establish the positional relationship that the interrupting element opposes the first heat generating portions with respect to a longitudinal direction of the substrate.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: December 27, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventor: Toshinori Nakayama
  • Patent number: 9481164
    Abstract: Functional amine release agents displaying improved wetting as compared to standard silicone oils comprise a polydimethylsiloxane oil and a functional amine selected from the group consisting of pendant propylamines and pendant N-(2-aminoethyl)-3-aminopropyl, in which the concentration of functional amine to polydimethylsiloxane oil is approximately less than 0.0006 meq/g and the release agents have a viscosity of 20 cSt and 10 cSt. In an in-line tandem print system, the 20 cSt release agent is used in the upstream print engine while the 10 cSt release agent is used in the downstream print engine.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: November 1, 2016
    Assignee: Xerox Corporation
    Inventors: Jason M. LeFevre, Paul J. McConville, James M. Chappell, Joanne L. Lee, Rachael L. McGrath, Santokh S. Badesha
  • Patent number: 9454116
    Abstract: A fixing device includes a fixing member, a pressuring member and a heater. The fixing member is configured to be rotatable. The pressuring member is configured to be rotatable and to come into pressure contact with the fixing member so as to form a fixing nip. The heater is arranged inside the fixing member. A heat resistant coating to convert light from the heater into heat is applied to an inner face of the fixing member, and the coating is formed by using an inorganic material.
    Type: Grant
    Filed: January 4, 2016
    Date of Patent: September 27, 2016
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Seiji Okada
  • Patent number: 9442440
    Abstract: A fixing device fixes an image on a sheet, and includes a rotatable member having an electroconductive layer; a helical coil provided inside the rotatable member and having a helix axis extending in a generatrix direction of the rotatable member; a magnetic member provided inside a helical configuration portion formed by the coil, the magnetic member not forming a loop outside the rotatable member; and a controller for controlling electric power supplied to the coil. The electroconductive layer generates heat by electromagnetic induction caused by the magnetic flux produced by an alternating current through the coil to fix the image on the sheet by the heat from the rotatable member. The controller limits the maximum electric power supplied to the coil, in accordance with the temperature of the magnetic member.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: September 13, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinji Hashiguchi, Masahide Hirai, Kentaro Yamashita, Aoji Isono
  • Patent number: 9395668
    Abstract: To provide a fixing pressure roller which can be readily produced through molding and which has excellent durability, low hardness and low heat capacity, and a fixing device employing the fixing pressure roller. In the fixing pressure roller for employment in a fixing unit of a fixing device, the fixing pressure roller has a core, and an elastic layer provided around the core, wherein the elastic layer is formed of a foamed silicone rubber which is a foam curing product of an unvulcanized silicone rubber containing a chemical foaming agent, and has a mean cell diameter of 50 ?m to 150 ?m.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: July 19, 2016
    Assignee: SYNZTEC CO., LTD.
    Inventors: Yuji Sugiyama, Takeyoshi Tedori, Masaya Suzuki
  • Patent number: 9367009
    Abstract: A fixing member used for fixing a toner image on a recording material includes: a base layer; and a porous elastic layer provided on the base layer and containing a needle-like filler. The elastic layer has a thermal conductivity with respect to a longitudinal direction thereof in a first region where the elastic layer is contactable to the recording material on the fixing member, and the thermal conductivity is 6 times to 900 times a thermal conductivity with respect to a thickness direction in the first region. The elastic layer has a thermal conductivity with respect to the thickness direction thereof in a second region outside the first region with respect to the longitudinal direction, and the thermal conductivity with respect to the thickness direction in the second region is larger than the thermal conductivity with respect to the thickness direction in the first region.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: June 14, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Naoki Akiyama, Shigeaki Takada, Daigo Matsuura, Yasuhiro Miyahara, Akeshi Asaka, Shuichi Tamura, Toshinori Nakayama, Yutaka Arai, Jun Miura, Takeshi Suzuki, Katsuhisa Matsunaka, Shinsuke Takahashi, Hiroto Sugimoto
  • Patent number: 9348280
    Abstract: A heating composite, including a polymer matrix; and a carbon nanotube structure including a plurality of carbon nanotubes continuously connected to each other and integrated with the polymer matrix.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: May 24, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-Eui Lee, In-Taek Han, Yoon-Chul Son, Ha Jin Kim, Dong-Ouk Kim, Dong-Earn Kim, Kun Mo Chu
  • Patent number: 9348269
    Abstract: An image transfer product is provided which includes a phase change material in one or more layers of the product to regulate the temperature of the product during printing operations. The image transfer product may be in the form of a printing blanket, printing sleeve, electrophotographic/xerographic transfer blanket, image transfer belt, or roller which includes a print surface layer and at least one layer underlying the printing surface layer. The phase change material may be included in any of the layers of the image transfer product, but is not present at the upper surface of the print surface layer. The phase change material may be in the form of a powder, fibers, capsules, or combinations thereof.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: May 24, 2016
    Assignee: Day International, Inc.
    Inventors: Scott Bridges, Samuel R. Shuman, Peter Asplund
  • Patent number: 9329331
    Abstract: The present disclosure discloses a mold frame, a backlight module and a display device. The mold frame includes sidewalls for limiting a periphery of a light guide plate and optical films in the backlight module, and a boss for limiting the light guide plate and the optical films in a direction perpendicular to an output surface of the light guide plate. The boss is provide with a recess opening towards the light guide plate. The recess is provided with a number of rollers therein in a lengthwise direction thereof. A diameter of the rollers is greater than a depth of the recess. The mold frame is applied to the backlight module. In assembly, the light guide plate, the light source and the optical films are placed in the mold frame.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: May 3, 2016
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE VISION-ELECTRONIC TECHNOLOGY CO., LTD.
    Inventors: Zhishuai Jia, Changjia Fu, Shaoan Li
  • Patent number: 9310732
    Abstract: The fixing device includes a fixing member heated from inside; and a pressing member forming a fixing nip with the fixing member. A toner image transferred on a sheet is heated and pressed so as to be fixed on the sheet at the fixing nip through which the sheet is nipped and conveyed. The fixing member includes, on an inner circumferential surface thereof, a heat absorbing layer containing heat-conductive fillers oriented in a direction intersecting with a conveying direction of the sheet.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: April 12, 2016
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Shinji Yamane
  • Patent number: 9296219
    Abstract: A functional amine release agent displaying reduced coefficient of friction as compared to standard silicone oils, comprises a polydimethylsiloxane oil and a functional amine selected from the group consisting of pendant propylamines and pendant N-(2-aminoethyl)-3-aminopropyl. The concentration of functional amine to polydimethylsiloxane oil is approximately less than 0.0001 meq/g. According to certain embodiments, the functional amine release agent is operable to impart a coefficient of friction of about 0.5 or more to the print media, resulting in improved finishing and converting equipment interaction. The release agent may have a viscosity of about 50 cSt.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: March 29, 2016
    Assignee: Xerox Corporation
    Inventors: Jason M. LeFevre, Paul J. McConville, James M. Chappell, Joanne L. Lee, Rachael L. McGrath, Santokh S. Badesha
  • Patent number: 9290351
    Abstract: An improved contact nip roll, a method for assembling an improved contact nip roll, a system for nipping a web, and a method for nipping a web are provided. The improved contact nip roll integrates an inner softer core that can provide compliancy to web caliper variations, while rigid annular rings and a harder outer skin can maintain a uniform contact area.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: March 22, 2016
    Assignee: 3M Innovative Properties Company
    Inventors: Kevin B. Newhouse, Bruce E. Tait, Waldo L. Lopez
  • Patent number: 9285736
    Abstract: Provided is a fixing member including an annular base material, and an innermost layer that is formed on an inner circumferential surface of the annular base material, the innermost layer including heat-resistant fibers.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: March 15, 2016
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Yasuhiko Kinuta
  • Patent number: 9274469
    Abstract: There is provided a homogenous composite dispersion. The composite dispersion is made from ingredients comprising: a first dispersion comprising a filler dispersed in a liquid continuous phase, the filler selected from the group consisting of nanotubes, graphene or a combination thereof, the liquid continuous phase comprising an acid copolymer and a first solvent, the acid copolymer comprising at least one carboxyl functionalized polymeric unit and at least one carboxylate ester functionalized polymeric unit having an alkyl or fluorinated alkyl attached to an oxygen atom of the carboxylate ester; a second dispersion comprising a fluoroplastic dispersed in a second solvent; and a sacrificial polymeric binder material.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: March 1, 2016
    Assignee: XEROX CORPORATION
    Inventors: Qi Zhang, Nan-Xing Hu, Suxia Yang, Sandra J. Gardner, Edward G. Zwartz
  • Patent number: 9274471
    Abstract: A rotatable heating member incorporating a heat source configured to heat a toner image on a sheet includes an elastic layer and a surface layer provided on the elastic layer. When thermal effusivity of the surface layer is Bs and thermal effusivity of the elastic layer is Be, the following relationship is satisfied: ?0.04<(Be?Bs)/Be<0.04.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: March 1, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Taku Higashiyama, Koji Inoue
  • Patent number: 9235175
    Abstract: An image fixing apparatus is provided including a pressing roller, a fixing belt rotatably disposed such that an outer circumferential surface of the fixing belt contacts the pressing roller, and a rotating bush to support rotation of the fixing belt. The fixing belt includes a load support member arranged in an axial direction, a heating layer formed on an outer circumferential surface of the load support member to generate heat, and an electrode layer provided with an first portion axially contacting the heating layer at an axial end of the load support member, the electrode layer transferring electric energy to the heating layer. An inner end of the rotating bush axially extends to an inner side of the electrode layer such that the electrode layer is supported by the rotating bush. The image fixing apparatus may uniformly form a fixing nip and improve durability of the fixing belt.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: January 12, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang Uk Jeon, Sun Hyung Lee, Ju Hyeong Lee