Dry Toner With Chemically Identified Adjuvant (e.g., Charge Control Agent, Colorant, Etc.) Patents (Class 430/108.1)
  • Patent number: 11409207
    Abstract: A method of converting a CMYW toner printer to print with one or more non-standard toners, comprising the steps: providing a CMYW toner printer; wherein the CMYW toner printer has four starting toner printing cartridges; wherein the four starting toner printing cartridges comprise a white toner printing cartridge, a cyan toner printing cartridge, a magenta toner printing cartridge, and a yellow toner printing cartridge; removing one or more of the four starting toner printing cartridges from the CMYW toner printer, such that there are one or more empty toner cartridge slots; providing one or more non-standard toner printing cartridges that are each filled with one type of one or more non-standard toners; and installing the one or more non-standard toner printing cartridges into the one or more empty toner cartridge slots.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: August 9, 2022
    Assignee: UI Technologies, Inc.
    Inventors: Michael Raymond Josiah, Joseph Dovi
  • Patent number: 11392052
    Abstract: An electrostatic image developing toner includes a toner particle, an external additive A, and an external additive B. At least the external additive A is present on the surface of the toner particles. At least the external additive B is present on the external additive A. The number of peaks of the external additive B on the external additive A is 5 or more and 100 or less per 30 ?m peripheral length of the toner particle, the peaks having a height from the surface of the toner particle of 80 nm or more and 250 nm or less.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: July 19, 2022
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Yasuko Torii, Yosuke Tsurumi, Atsushi Sugawara, Yoshimasa Fujihara, Moegi Iguchi
  • Patent number: 11372363
    Abstract: An image forming apparatus is provided. The image forming apparatus includes an image bearer and a cleaning blade configured to remove toner particles remaining on the image bearer. The cleaning blade includes an elastic member in contact with a surface of the image bearer to remove the toner particles. The elastic member has a Martens hardness of from 3 to 8 N/mm2 when measured by a nanoindentation method with a load of 1 ?N. The toner particles comprise toner base particles and an external additive, and the external additive comprise silica particles. A liberation ratio (Xs) of the silica particles liberated from the toner particles is from 40% to 75% when measured by an ultrasonic vibration method. A proportion (R70) of the silica particles having a volume-based particle diameter of 70 nm or more in the silica particles liberated from the toner particles is from 70% to 90% by number.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: June 28, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventors: Daisuke Inoue, Shinya Nakayama, Yohichi Kitagawa, Takaaki Tawada, Kenji Komito
  • Patent number: 11300893
    Abstract: A toner for developing an electrostatic latent image includes a plurality of toner particles. Each of the plurality of toner particles includes an additive attached to a surface of the particle, such that, when the plurality of toner particles are measured by X-ray fluorescence (XRF) spectrometry, an X-ray fluorescence intensity of lanthanum [La] (unit: kcps) and an X-ray fluorescence intensity of strontium [Sr] (unit: kcps) measured by the XRF spectrometry of the toner satisfy the following conditions (1) and (2): 0.2 kcps<[La]<2 kcps ??(1), and 100 kcps<[Sr]<800 kcps ??(2).
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: April 12, 2022
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Se Young Yoon, Yo Da Shin, Woo Chui Jung
  • Patent number: 11192973
    Abstract: This invention relates to compositions and a process for stabilizing or solubilize a phenolic resin containing a mixture of linear phenolic resins and calixarenes. The process comprises contacting the phenolic resin with an epoxide, to at least partially alkoxylate the phenolic hydroxyl groups of the calixarenes. This process forms a stabilized or solubilized phenolic resin with an increased solubility in a hydrocarbon solvent.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: December 7, 2021
    Assignee: SI GROUP, INC.
    Inventors: Ricky Biittig, Matthew Meketa
  • Patent number: 11181847
    Abstract: A carrier for electrostatic image development includes: a core material; and a coating resin layer that contains inorganic particles and covers the core material. The content of the inorganic particles is 10% by mass or more and 60% by mass or less based on the total mass of the coating resin layer. The volume average diameter D (?m) of the inorganic particles and the thickness T (?m) of the coating resin layer satisfy the following relational expression (1): 0.007?D/T?0.24.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: November 23, 2021
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Shintaro Anno, Takuro Watanabe, Yasuaki Hashimoto, Yasuo Kadokura, Kazutsuna Sasaki, Jumpei Iwasaki
  • Patent number: 11175601
    Abstract: A toner includes toner particles and zinc stearate particles. The toner particles each include a toner mother particle containing a binder resin. The zinc stearate particles have a 50% volume cumulative diameter of at least 3.0 ?m and no greater than 6.0 ?m. A presence ratio of the zinc stearate particles having a particle diameter of no greater than 1.0 ?m is no greater than 2.0% by volume relative to a total amount of the zinc stearate particles. A presence ratio of the zinc stearate particles having a particle diameter of at least 10.0 ?m is no greater than 2.0% by volume relative to the total amount of the zinc stearate particles.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: November 16, 2021
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Noriaki Sakamoto
  • Patent number: 11169308
    Abstract: Disclosed is a color material dispersion liquid for color filter, which has excellent heat resistance and is able to form a high-luminance coating film. The color material dispersion liquid for color filters includes (A) a color material, (B) a dispersant and (C) a solvent. The color material (A) contains (A-1) a color material represented by the following general formula (I) and (A-2) a metal lake color material of a rhodamine-based acid dye: (symbols in the general formula (I) are as described in the Description.).
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: November 9, 2021
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Michihiro Ogura, Tomoki Murata, Fumiyasu Murakami, Masato Okada, Hiroaki Segawa
  • Patent number: 11126102
    Abstract: A toner for developing an electrostatic charge image contains toner particles, layered-compound particles, and inorganic particles. The percentage Fa of layered-compound particles free from the toner particles is 5% by volume or more and 20% by volume or less.
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: September 21, 2021
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Yasuaki Hashimoto, Sakiko Takeuchi, Takashi Inukai, Daisuke Noguchi, Takuro Watanabe
  • Patent number: 11126099
    Abstract: An electrostatic-image developing toner includes toner particles, layered compound particles, and inorganic particles. The inorganic particles have an average circularity of 0.910 or more and 0.995 or less. A ratio Da/Db of a number-average particle size Da of the layered compound particles to a number-average particle size Db of the inorganic particles is 1.2 or more and 43 or less.
    Type: Grant
    Filed: April 7, 2020
    Date of Patent: September 21, 2021
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Yuka Yamagishi, Daisuke Noguchi, Sakiko Takeuchi, Kazuhiko Nakamura, Yutaka Saito
  • Patent number: 11106148
    Abstract: An electrostatic charge image development toner that is negatively chargeable contains toner particles and layered-structure compound particles. The layered-structure compound particles have a volume-average particle diameter Da of 0.4 ?m or more and less than 3.0 ?m. The ratio Da/Db of the volume-average particle diameter Da of the layered-structure compound particles to the volume-average particle diameter Db of the toner particles is 0.044 or more and 0.625 or less.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: August 31, 2021
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Daisuke Noguchi, Yuka Yamagishi, Sakiko Takeuchi, Kazuhiko Nakamura, Yutaka Saito
  • Patent number: 11086243
    Abstract: A toner composition including a first wax; a second wax that is different from the first wax; wherein the first wax comprises a paraffin wax; wherein the second wax comprises a polymethylene wax; at least one polyester; and an optional colorant.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: August 10, 2021
    Assignee: Xerox Corporation
    Inventors: Jordan A. Frank, Daniel W. Asarese, Paul K. Acquaviva, Chieh-Min Cheng, Michael F. Zona, Richard P. N. Veregin
  • Patent number: 11073772
    Abstract: An electrostatic charge image developer contains toner particles, layered-compound particles that are particles of a nitrogen-containing layered compound, and a resin-coated carrier that has magnetic particles and a resin layer covering the magnetic particles. The maximum height Ry of the roughness profile as defined in JIS B0601: 1994 of the surface of the resin-coated carrier is 0.01 ?m or more and 0.20 ?m or less.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: July 27, 2021
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Takuro Watanabe, Yasuaki Hashimoto, Daisuke Noguchi, Takashi Inukai, Sakiko Takeuchi
  • Patent number: 11067913
    Abstract: An electrostatic image developing toner includes toner particles, layered compound particles, and inorganic particles. The proportion of irregular-shaped inorganic particles having a circularity of 0.5 or more and 0.9 or less and a size of 0.015 ?m or more and 0.350 ?m or less to the entire inorganic particles is 2% by number or more and 70% by number or less.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: July 20, 2021
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Takashi Inukai, Yasuaki Hashimoto, Daisuke Noguchi, Takuro Watanabe, Sakiko Takeuchi
  • Patent number: 11003104
    Abstract: Provided is a toner including a toner particle and an external additive, wherein the external additive includes a composite particle including a hydrotalcite particle covered on the surface with an organosilicon polymer fine particle, a coverage ratio of the hydrotalcite particle surface by the organosilicon polymer fine particle is from 1% to 50%, and given A (nm) as the number-average particle diameter of the primary particles of the organosilicon polymer fine particle and B (nm) as the number-average particle diameter of the primary particles of the hydrotalcite particle, the toner satisfies the following formula (I) and formula (II): A<B??(I) 20?A?350??(II).
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: May 11, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Taiji Katsura, Masamichi Sato, Shohei Kototani, Kentaro Yamawaki, Tsuneyoshi Tominaga, Masatake Tanaka
  • Patent number: 10990042
    Abstract: An intermediate transfer belt is provided onto which a toner image obtained by developing a latent image formed on an image bearer with a toner is transferred. The intermediate transfer belt includes a base layer and an elastic layer laminated on the base layer. The elastic layer includes an ether-based urethane rubber and particles. The elastic layer has a flame retardancy of vertical thin material (VTM)-1 or higher in UL94-VTM test, and the intermediate transfer belt has a Martens hardness of 0.3 to 0.6 N/mm2 and an elastic power of 60% to 85%.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: April 27, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Masahiro Ohmori, Hidetaka Kubo
  • Patent number: 10942465
    Abstract: A toner comprising a toner particle that contains a binder resin and a wax; in a microcompression test under a maximum load condition of 1.1×10?3 N, a force applied to the toner particle when a percentage deformation of the toner particle with reference to a number-average particle diameter of the toner particle at 25° C. reaches 15% is 0.10 to 1.00 mN and the force applied to the toner particle when the percentage deformation at 45° C. reaches 15% is 0.10 to 0.40 mN; and when the force applied to the toner particle is a variable and the percentage deformation of the toner particle is from 15 to 30%, the rate of increase in the percentage deformation of the toner particle at 25° C. and the rate of increase in the percentage deformation of the toner particle at 45° C. satisfy specific formula.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: March 9, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Shohei Kototani, Kentaro Yamawaki, Koji Abe, Tomonori Matsunaga, Masamichi Sato
  • Patent number: 10852650
    Abstract: A toner has a toner particle including a binder resin, a colorant, and a wax, in which in a cross section of the toner particle observed under a scanning transmission electron microscope, a proportion of the number of toner particles having a void with a long diameter of 0.50 ?m or less is 60 number % or more, and a proportion of the number of toner particles having a void in a region from an outline of the cross section of the toner particle inward to 1.00 ?m in a total number of the toner particles having a void is 30 number % or less.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: December 1, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Koki Inoue, Takeshi Tsujino, Yasuhiro Hashimoto, Junya Asaoka, Yuu Sasano, Kenta Katayama, Shota Amano
  • Patent number: 10843373
    Abstract: A sheet manufacturing apparatus according to the invention has a mixing unit that mixes fiber and resin powder in air; and a sheet forming unit that forms a sheet by laying and heating the mixture mixed by the mixing unit; the grindability index of the resin contained in the resin powder being 0.8 or less.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: November 24, 2020
    Assignee: Seiko Epson Corporation
    Inventor: Yoshihiro Ueno
  • Patent number: 10845738
    Abstract: An image forming method includes forming an image with a toner using a photoconductor in which an intermediate layer and a photosensitive layer including a charge generating layer and a charge transport layer are formed overlying an electroconductive substrate, wherein the ionization potential of the surface of the photoconductor and the ionization potential of the surface of the toner satisfy the following relations 1 and 2, |Ip (the surface of the photoconductor)?Ip (the surface of the toner)|?5.53 (eV)?? Relation 1 5.45 (eV)?Ip (the surface of the photoconductor)?5.53 (eV)?? Relation 2 where Ip (the surface of the photoconductor) represents the ionization potential of the surface of the photoconductor and Ip (the surface of the toner) represents the ionization potential of the surface of the toner.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: November 24, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Hidetoshi Kami, Akihiro Sugino, Keisuke Shimoyama, Ryohta Takahashi
  • Patent number: 10788781
    Abstract: The present invention provides an image forming method for forming a decorated image having a resin layer and a powder contacted with each other, the method including: forming a resin layer on a recording medium; and supplying a powder onto the recording medium, in which, in viscoelasticity measurement of the resin layer, storage modulus G?(1) at 90° C. is 1.0×103 Pa or more and 1.0×106 Pa or less upon carrying out the measurement from 30° C. to 100° C. under conditions of a frequency of 1 Hz and a temperature increasing rate of 3° C./min.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: September 29, 2020
    Assignee: KONICA MINOLTA, INC.
    Inventors: Kazumi Oura, Michiyo Fujita, Kaori Matsushima
  • Patent number: 10747134
    Abstract: An external toner additive having a resin fine particle containing a crystalline resin and an inorganic fine particle embedded in the resin fine particle, wherein part of the inorganic fine particle is exposed on the surface of the resin fine particle, and in differential scanning calorimetry of the external toner additive, the maximum endothermic peak temperature T1 (° C.) during a first temperature increase and the maximum exothermic peak temperature T2 (° C.) during a first temperature decrease satisfy the formulae (1) to (3) below, with measurement performed between ?40° C. and 150° C. at a rate of increase of 10° C./min during the first temperature increase and between 150° C. and ?40° C. at a rate of decrease in temperature of 10° C./min during the first temperature decrease: T1-T2?40.0??(1) 50.0?T1?120.0??(2) 10.0?T2?80.0??(3).
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: August 18, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Shuntaro Watanabe, Tatsuya Saeki, Atsuhiko Ohmori, Shuhei Moribe, Hiroki Akiyama, Kazumichi Nakahama, Katsuhisa Yamazaki
  • Patent number: 10627731
    Abstract: A toner includes toner base particles each including a toner base particle and an external additive. The toner base particle includes a fluorescent pigment and a binder resin. The external additive is fixed on a surface of the toner base particle. The content of the fluorescent pigment in the toner base particle is equal to or greater than 0.3 weight percent and equal to or smaller than 3.0 weight percent. A ratio of a particle size distribution on a number basis of the toner particles to a particle size distribution on a volume basis of the toner particles is equal to or greater than 0.66 and equal to or smaller than 1.00.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: April 21, 2020
    Assignee: Oki Data Corporation
    Inventor: Naoya Ikeda
  • Patent number: 10571832
    Abstract: An intermediate transferor (22;501) for an image forming apparatus includes a base layer (11), an elastic layer (12) layered on the base layer (11), and fine particles (13) on the elastic layer (12) to form an uneven surface of the elastic layer (12). The fine particles (13) have a volume resistivity of 1×100 ?·cm to 1×106 ?cm.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: February 25, 2020
    Assignee: Ricoh Company, Ltd.
    Inventor: Hidetaka Kubo
  • Patent number: 10539898
    Abstract: A radiation curable dry toner includes core-shell toner particles. The core-shell toner particles have an average volume-based diameter between 5 and 10 micrometre, and a core-shell toner particle thereof includes an inner portion having a radiation curable first resin material consisting of at least 90 weight %, preferably at least 95 weight %, of the total amount of resin material of the inner portion; an outer shell surrounding said inner portion, said outer shell including a second resin material, said second resin material being any one of the following: cured first resin material; or a resin material which is different from the first resin material.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: January 21, 2020
    Assignee: Xeikon Manufacturing N.V.
    Inventors: Lode Erik Dries Deprez, Werner Jozef Johan Op de Beeck
  • Patent number: 10526506
    Abstract: A coating composition is provided that includes (a) a polyester polymer derived by esterifying an aryloxy ether polyol (e.g., an aryloxy ether diol) derived from reaction between a polyhydric phenol or a polyphenol and a non-hydroxyl functional cyclic carbonate, or from reaction between a monophenol and a hydroxyl functional cyclic carbonate; (b) a crosslinker and (c) an optional catalyst.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: January 7, 2020
    Assignee: SWIMC LLC
    Inventors: Andriot Matthieu, Sebastien Gibanel, Benoit Prouvost
  • Patent number: 10472500
    Abstract: The present disclosure generally relates chitosan-based biopolymers and chitosan biopolymer film based triboelectric nanogenerators generating voltage and current using the triboelectric effect. The chitosan-based biopolymer is a reaction product of at least a chitosan and an acid, and optionally one or more component selected from starch, lignin and/or glycerol.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: November 12, 2019
    Assignee: Purdue Research Foundation
    Inventors: Wenzhuo Wu, Ruoxing Wang
  • Patent number: 10451985
    Abstract: A toner comprising a toner particle, and strontium titanate, wherein the strontium titanate has a specific number average particle diameter, the strontium titanate has a maximum peak (a) at a diffraction angle (2?) of 32.00 deg to 32.40 deg in CuK? characteristic X-ray diffraction, the half width of the maximum peak (a) is 0.23 deg to 0.50 deg, an intensity (Ia) of the maximum peak (a) and a maximum peak intensity (Ix) in a range of a diffraction angle (2?) of 24.00 deg to 28.00 deg satisfy a specific relationship, the content of strontium oxide and titanium oxide in the strontium titanate is at least 98.0% by mass, and a sum total Et of a rotational torque and a vertical load in powder flowability analysis of the toner is 100 mJ to 2000 mJ.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: October 22, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Toru Takahashi, Hiroki Watanabe, Yoshihiro Ogawa, Daisuke Tsujimoto, Wakashi Iida
  • Patent number: 10427985
    Abstract: A ceramic composite material comprises a ceramic compound, a plurality of shaping particles dispersed in the ceramic compound, and a plurality void spaces dispersed in the ceramic compound. The plurality of shaping particles are contained within the plurality of void spaces, and each of the plurality of void spaces is a closed cell. The plurality of shaping particles also comprise nanostructures have a length to diameter ratio of less than or equal to 10 to 1 and a length of less than or equal to 500 nanometers.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: October 1, 2019
    Assignee: Lockheed Martin Corporation
    Inventors: Daniel H. Hecht, Antonio P. De La Garza, III
  • Patent number: 10338487
    Abstract: A toner including: a toner particle including a toner base particle containing a binder resin, and an organosilicon condensate present on a surface of the toner base particle, wherein a charge attenuation constant of the toner is 3.5×10?3 or more to 1.0×100 or less.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: July 2, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kenta Kamikura, Kunihiko Nakamura, Maho Tanaka, Fumiya Hatakeyama
  • Patent number: 10324391
    Abstract: The present invention provides means for improving the softening rate in photoirradiation and image fixation property. The toner according to the present invention includes an azobenzene derivative represented by the following chemical formula (1), and in the chemical formula (1), R1 to R10 in the following are groups defined in claim 1.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: June 18, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Seijiro Takahashi, Hidekazu Kawasaki
  • Patent number: 10259944
    Abstract: Provided is an external additive for toner, which is suitable for producing a toner having excellent storage stability and chargeability. A silica fine powder suitable for being added to the external additive for toner is also provided. The silica fine powder has a specific surface area of 15 m2/g or more and 90 m2/g or less, a loose bulk density of 0.09 g/cm3 or more and 0.18 g/cm3 or less, a carbon content of 0.25 wt % or more and 0.90 wt % or less, and a hydrophobicity of 60% or more and 75% or less. It is preferable that a ratio (A)/(B) of the loose bulk density of the silica fine powder after surface treatment (A) to a loose bulk density of the silica fine powder before the surface treatment (B) be 1.05 or more and 1.60 or less.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: April 16, 2019
    Assignee: DENKA COMPANY LIMITED
    Inventors: Shuji Sasaki, Junya Nitta, Takahisa Mizumoto
  • Patent number: 10216106
    Abstract: A method for producing a toner includes a step (1) of forming resin microparticles in an aqueous medium in the presence of a surfactant, a step (2) of aggregating the resin microparticles to form aggregated particles, and a step (3) of heating and the aggregated particles and allowing the aggregated particles to coalesce to form toner particles, in which a resin component in the resin microparticles contains an olefinic copolymer and resin A, the resin A has an acid value of 1 mgKOH/g or more and 50 mgKOH/g or less, the resin A has a SP value of 19.0 (J/cm3)0.5 or more and 21.0 (J/cm3)0.5 or less, and the resin component has an olefinic copolymer content of 50% by mass or more with respect to the total mass of the resin component.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: February 26, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomoyo Miyakai, Junichi Tamura, Hayato Ida, Takaho Shibata, Kouichirou Ochi, Yuya Chimoto, Ryuji Murayama, Daisuke Yamashita, Akemi Watanabe, Takashi Hirasa
  • Patent number: 10216109
    Abstract: An electrostatic latent image developing toner includes a plurality of toner particles each including a toner core and a shell layer covering a surface of the toner core. The shell layer contains a hydrophobic thermoplastic resin and a positively chargeable hydrophilic water-insoluble resin. An existing amount A of alkali metal elements present in a surface layer of the shell layer measured by X-ray photoelectron spectroscopy and an existing amount B of alkali metal elements present in a toner particle as a whole measured by fluorescent X-ray analysis satisfy expressions (a) and (b) shown below A?300 ppm??(a) 0.5?A/B<1.0??(b).
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: February 26, 2019
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Jun Hioki
  • Patent number: 10202518
    Abstract: Provided are an elastomer composition including epoxy resin, acrylate resin, an organic filler, an inorganic filler, a cross linking agent, a hardener, an initiator and a solvent, and a magnetic ferrite for a wireless power transmitting and receiving device, the magnetic ferrite being coated with the elastomater composition having an elastic restoring force not to be damaged by a physical impact applied from the outside. According to embodiments of the present invention, the magnetic ferrite having improved impact resistance can be provided by being coating with the elastomer composition having the elastic restoring force, and thus an existing problem such as a reduction in magnetic property caused by damage to the ferrite resulting from an external impact can be solved.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: February 12, 2019
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Soon Young Hyun, Seok Bae, So Yeon Kim, Won Ha Moon, Nam Yang Lee, Hyung Eui Lee
  • Patent number: 10191402
    Abstract: An image forming apparatus for developing an image with developer includes a development part, a transfer part, and a fuser the medium. The developer is configured with a plurality of particles, an average circularity degree of the developer is ranged within 0.955 to 0.970, and a peeling rate (%) of the external additive by a following equation is 30.6% or less, peeling rate (%)=[1?(X/Y)]×100??(1) wherein X is an amount (weight %) of the external additive included in the developer after ultrasonic waves are applied, and Y is an amount (weight %) of the external additive included in the developer before the ultrasonic waves are applied.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: January 29, 2019
    Assignee: Oki Data Corporation
    Inventor: Yuichi Furukawa
  • Patent number: 10156799
    Abstract: An electrostatic charge image developing toner set includes an electrostatic charge image developing black toner that includes black toner particles including a black colorant, a binder resin, and a release agent, and inorganic particles containing an oil; and an electrostatic charge image developing color toner that includes color toner particles including a color colorant, a binder resin, and a release agent, and inorganic particles containing an oil, wherein a proportion of the release agent exposed to a surface of the color toner particles is greater than a proportion of the release agent exposed to a surface of the black toner particles.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: December 18, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Hiroki Ohmori, Yutaka Saito, Yuka Yamagishi, Fusako Kiyono
  • Patent number: 10126671
    Abstract: The present disclosure provides processes for producing images with toner particles. In embodiments, toner particles of a certain diameter in size are applied to a substrate as an incomplete monolayer, and then fused to form an image that is a complete monolayer and possesses a thickness less than the diameter of the particles utilized to form the image.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: November 13, 2018
    Assignee: XEROX CORPORATION
    Inventors: Richard P. N. Veregin, Eric Rotberg, Edward Graham Zwartz, Suxia Yang, Daryl W. Vanbesien, Cuong Vong, Karen Ann Moffat
  • Patent number: 10126670
    Abstract: Toner particles of a toner each include a toner mother particle and an external additive. The toner mother particle includes a toner core containing a binder resin and a shell layer covering a surface of the toner core. The external additive contains a plurality of first external additive particles each containing a resin. The first external additive particles are present on a surface of the shell layer. The toner core and each of the first external additive particles are bonded together through a covalent bond in the shell layer. The covalent bond includes a first amide bond and a second amide bond. The shell layer contains a vinyl resin. The vinyl resin includes constitutional units (1-1), (1-2), and (1-3). The first amide bond is an amide bond included in the constitutional unit (1-1). The second amide bond is an amide bond included in the constitutional unit (1-2).
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: November 13, 2018
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Erika Tanaka
  • Patent number: 10126669
    Abstract: A composite core of a toner particle is a composite of a toner core containing a polyester resin and a plurality of resin particles each containing a first resin. A shell layer partially covering a surface of the composite core is a film containing a second resin. The first resin has a glass transition point that is 10° C. or more higher than a glass transition point of the second resin. The plurality of resin particles each have a particle diameter that is 1.5 times or more greater than a thickness of the shell layer. An amount of the resin particles is at least 0.3 parts by mass and no greater than 2.0 parts by mass relative to 100 parts by mass of the toner cores. The resin particles have a positive zeta potential at pH 4.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: November 13, 2018
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Seishi Ojima
  • Patent number: 10048608
    Abstract: Toner particles each have a toner core, a shell layer covering a surface of the toner core, and first resin particles containing a melamine resin. A shell layer coverage is 60% to 80%. The first resin particles each have an embedded portion and a protrusion portion. The embedded portions are embedded beneath the surface of the toner core. The protrusion portions protrude outward from the surface of the toner core in a radial direction of the toner particle. An average value Wd of thicknesses b of the shell layers, a number average value Dp of embedment depths c of the first resin particles, and a number average value Pd of primary particle diameters d of the first resin particles satisfy relations (1) to (3) shown below. 0.2?Dp/Pd?0.8??(1) (Pd?Dp)>Wd??(2) 0.10 ?m?Pd?1.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: August 14, 2018
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Toshiki Takemori
  • Patent number: 10007205
    Abstract: Disclosed herein include processes of preparing hybrid toner compositions with toner particles having a core-shell type structure, where the shell contains a non-volatile coalescent agent. More particularly, embodiments relate to processes of preparing styrene acrylate hybrid toner compositions.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: June 26, 2018
    Assignee: XEROX CORPORATION
    Inventors: Richard P N Veregin, Valerie M. Farrugia, Nan-Xing Hu, Sandra J. Gardner
  • Patent number: 9964873
    Abstract: A toner fixable on an image bearer with heat. The toner has a first storage modulus of from 1×103 to 1×106 Pa, measured at 100° C. when being heated, and a second storage modulus of from 1×103 to 1×106 Pa, measured at 100° C. when being cooled, the first storage modulus and second storage modulus being measured by a rheometer, and the second storage modulus at 100° C. when being cooled is higher than the first storage modulus at 100° C. when being heated.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: May 8, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroshi Yamashita, Minoru Masuda, Hiroshi Yamada, Shizuka Hashida, Masanori Rimoto
  • Patent number: 9958798
    Abstract: There is provided a toner set including a yellow toner, a cyan toner and a magenta toner, the toners each comprising an external additive and colored resin particles comprising a binder resin, a colorant and a charge control agent. An absolute value of an average of q/d for any of the yellow, cyan and magenta toners is expressed by charge amount q (fC) and particle diameter d (?m). It is obtained by measurement using an electric field detachment-type charge amount distribution measurement device. It is in a range of 2.0 to 6.5 fC/10 ?m, and a standard deviation (SD) of q/d is 13 fC/10 ?m or less. A difference between average values of q/d for any two of the yellow, cyan and magenta toners is 2.0 fC/10 ?m or less. A difference (?SD) between standard deviations of q/d for the two toners is 5.0 fC/10 ?m or less.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: May 1, 2018
    Assignee: ZEON CORPORATION
    Inventors: Hiroshi Nakatani, Takeru Chiba
  • Patent number: 9946179
    Abstract: A toner comprising a binder resin, a crystalline material, and a colorant, wherein, in a cross section image of the toner, when R (?m) is a long axis of the toner, r (?m) is a long axis of a crystalline material domain, domain A is a domain satisfying formula (ii), and domain B is a domain satisfying formula (iii), the toner in which the domain A and the domain B are both present is at least 50 number %; an number average diameter RAvg of the long axis of the toner satisfies formula (i); and a number of domain B per toner cross section of one toner is 20 to 300. 4 ?m?RAvg?12 ?m??(i) 0.125?r/R?0.375??(ii) 0.000625?r/R?0.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: April 17, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Satoshi Arimura, Yusuke Hasegawa, Tomohisa Sano, Yoshitaka Suzumura, Takuma Ikejiri
  • Patent number: 9939760
    Abstract: An image forming apparatus includes a recording material feeding portion, an image forming portion, and a heating portion. An ultraviolet irradiating portion irradiates an image on a recording material with ultraviolet radiation, when the recording material is in an ultraviolet irradiation positon and is already heated by the heating portion, and a detecting portion detects a temperature of the recording material which has not yet been heated by the heating portion. In addition, a controller controls an output of the heating portion depending on the detected temperature so that the temperature of the recording material, when the recording material heated by the heating portion enters the ultraviolet irradiation position, is within a target temperature range that is set in advance.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: April 10, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Isao Komatsu
  • Patent number: 9904196
    Abstract: A white toner for developing an electrostatic charge image includes a white toner particle containing a binder resin and a white pigment particle, wherein, when a number average circle equivalent diameter of the white pigment particles, which are observed in a sectional image of the white toner particle, is taken as A, and a number average circle equivalent diameter of the white pigment particles, which are present in a surface layer portion within 35% from a surface of the white toner particle with respect to a particle diameter thereof, is taken as B, a relationship expressed by A>B is satisfied.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: February 27, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Kana Yoshida, Atsushi Sugawara, Tsuyoshi Murakami, Masaki Iwase
  • Patent number: 9882133
    Abstract: Embodiments of the disclosure provide an electronic package device and a fabrication method thereof, and a method for testing the electronic package device. The electronic package device comprises a base substrate and a package substrate that are provided opposite to each other, and a sealant provided therebetween. The electronic package device further comprises an electronic function layer provided on a side of the base substrate facing the package substrate, and a laminated film layer and a test lead provided on a side of the package substrate facing the base substrate. The laminated film layer comprises a hygroscopic film adjacent to the package substrate and a piezoelectric film coating surfaces of the hygroscopic film. The piezoelectric film contacts one end of the test lead, and the other end of the test lead passes through the sealant and extends to an exterior of the electronic package device.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: January 30, 2018
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Dan Wang
  • Patent number: 9857709
    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: Grant
    Filed: September 15, 2011
    Date of Patent: January 2, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Naohiro Watanabe, Tsuyoshi Sugimoto, Mamoru Hozumi, Tomoyuki Sato, Shinya Hanatani
  • Patent number: 9717798
    Abstract: A composition is disclosed. The composition comprises at least one polymeric colorant having a polymer component with a colorant component covalently bound thereto, a medicament, and a liquid vehicle. The at least one colorant component does not react directly or indirectly with the medicament. Methods of using the polymeric colorants, including a method for the preparation of skin as a site for a surgical procedure and a method of treating a medical condition, are also provided.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: August 1, 2017
    Assignee: 3M Innovative Properties Company
    Inventors: Louis C. Haddad, Douglas A. Hanggi, David B. Olson, Matthew T. Scholz, Dong-Wei Zhu