Patents Examined by Mark A. Chapman
  • Patent number: 10254666
    Abstract: Provided is a toner for developing electrostatic images, which is less likely to cause filming, is excellent in printing durability, and is less likely to cause fog under a high temperature and high humidity environment. The toner for developing electrostatic images is a toner containing colored resin particles that contains a binder resin, a colorant and a charge control agent, and external additives, wherein the external additives include at least: silica fine particles A, silica fine particles B, and electroconductive metal oxide fine particles C; wherein the silica fine particles. A and B are silica fine particles surface-hydrophobized with at least one hydrophobizing agent; wherein the electroconductive metal oxide fine particles C have an electrical resistance of 70 ?cm or less and contain antimony-doped tin oxide.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: April 9, 2019
    Assignee: ZEON CORPORATION
    Inventor: Takeru Chiba
  • Patent number: 10241431
    Abstract: Toner particles contain a non-crystalline polyester resin. The toner particles further contain 10 parts by mass to 30 parts by mass of a crystalline polyester resin, 30 parts by mass to 50 parts by mass of a styrene-acrylic acid-based resin, and 8 parts by mass to 15 parts by mass of an ester wax relative to 100 parts by mass of the non-crystalline polyester resin. The crystalline polyester resin includes a repeating unit derived from an acrylic acid-based monomer and a repeating unit derived from a styrene-based monomer. The styrene-acrylic acid-based resin includes a repeating unit derived from an acrylic acid-based monomer having an amino group and has an amino group ratio of 40% to 60%. The ester wax in the toner particles has a dispersion diameter of 500 nm to 1,000 nm.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: March 26, 2019
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Kohei Yamauchi, Hiroki Uemura
  • Patent number: 10234784
    Abstract: A liquid developer containing toner particles containing a resin containing a polyester and a pigment, wherein the toner particles are dispersed in an insulating liquid in the presence of a dispersant, wherein the insulating liquid has an evaporation rate after holding at 40° C. for 30 minutes of less than 0.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: March 19, 2019
    Assignee: Kao Corporation
    Inventors: Nobumichi Kamiyoshi, Tatsuya Yamada
  • Patent number: 10234779
    Abstract: A toner includes a toner particle containing a resin component containing an olefin copolymer, wherein the olefin copolymer includes a specific monomer unit Y1 and a specific monomer unit Y2, and the content of the olefin copolymer in the resin component is more than 50 mass % based on the total mass of the resin component, and the olefin copolymer has a melting point of 80° C. or more and 150° C. or less.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: March 19, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hayato Ida, Junichi Tamura, Ryuji Murayama, Takaho Shibata, Daisuke Yamashita, Takashi Hirasa
  • Patent number: 10226816
    Abstract: A method and an assembly for production of a mechanical component by sintering a pulverulent material, the method including: providing a pulverulent metallic material including grains, the pulverulent metallic material having a determined melting temperature; agglomerating a given quantity of the pulverulent metallic material under pressure inside a cavity; providing thermal energy to the given quantity of pulverulent metallic material to bring it to a given temperature below the melting temperature; and shocking the given quantity of agglomerated pulverulent metallic material and brought to the given temperature to bind the grains of the pulverulent metallic material to each other to obtain one solid body. The one solid body is thus maintained under pressure and thermal energy accumulated in the solid body is made to dissipate to obtain the mechanical component.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: March 12, 2019
    Assignee: ETA SA MANUFACTURE HORLOGERE SUISSE
    Inventor: Paul Calves
  • Patent number: 10220443
    Abstract: The invention relates to a method for producing a steel shaped body, particularly, for example, a component for common rail fuel injection valves, comprising the method steps of: forming a powderous composition based on iron oxide, from oxide particles, with the addition of carbon and micro-alloy elements so as to adjust a bainitic microstructure; heating the powderous composition to a sinter temperature; reducing the shaped body obtained by sintering; and cooling the sintered shaped body to room temperature. As a result, from the three essential state phases in a state diagram (10), specifically the ferrite-perlite state range (11), the bainite state range (12) and the martensite state range (13), preferably the bainitic state phase is formed in a medium temperature range by the ferrite-perlite state range (11) being shifted to longer cooling periods and the martensite state range (13) being shifted to lower temperatures.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: March 5, 2019
    Assignee: Robert Bosch GmbH
    Inventor: Heike Langner
  • Patent number: 10216110
    Abstract: Provided is a toner binder which attains all of low-temperature fixing properties, gloss, and hot offset resistance and gives a toner that satisfies the flowability, high-temperature storability, charge stability, pulverizability, image strength, flex cracking resistance, and document anti-offset properties. The present invention is a toner binder which comprises a polyester resins and has a surfactant content of 100 ppm or less and in which the THF-insoluble components and the THF-soluble components respectively have a storage modulus (Pa) at 150° C., G?x150, and the storage modulus (Pa) at 150° C., G?y150, which satisfy the following relationships (1) and (2).
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: February 26, 2019
    Assignee: Sanyo Chemical Industries, Ltd.
    Inventors: Masaru Honda, Tsuyoshi Izumi, Hiroshi Odajima, Masashi Minaki
  • 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: 10203618
    Abstract: An electrostatic charge image developing toner includes a binder resin and a release agent. A ratio of a crystalline polyester resin to the total amount of a amorphous polyester resin and the crystalline polyester resin is within a range exceeding 40% by mass to 60% by mass. A temperature at which a storage modulus before heat left G? before being left to stand at a temperature of X° C. becomes 1.0×108 Pa is within a range exceeding 45° C. to 55° C. A storage modulus after heat left G? at a temperature of X?° C. at which a value of a ratio of the storage modulus after heat left G? at a temperature of X° C. after being left to stand at the temperature of X° C. for 2 hours to the storage modulus before heat left G? at the temperature of X° C. becomes the maximum is within a range of 1.0×108 to 5.0×108 Pa.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: February 12, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Yusuke Takigaura, Takaki Kawamura, Shiro Hirano
  • Patent number: 10203616
    Abstract: The present invention relates to an electrophotographic photoreceptor comprising: a conductive support; and a photosensitive layer on the conductive support, wherein the photosensitive layer contains a charge transport substance, a binder resin, and a compound which has a molecular weight of equal to or less than 350, and is represented by General Formula (1).
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: February 12, 2019
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Atsushi Yoshizawa, Wataru Miyashita, Mitsuo Wada, Akiteru Fujii, Takayuki Shouda
  • Patent number: 10197936
    Abstract: Provided is a toner including toner particles each containing an amorphous polyester resin and a wax, in which: the surface of each of the toner particles has a coating layer; and the coating layer contains one or more kinds of olefin-based copolymers each having a specific ester moiety.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: February 5, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yuto Onozaki, Takeshi Hashimoto, Ichiro Kanno, Masayuki Hama, Hitoshi Sano, Nozomu Komatsu, Takakuni Kobori, Hiroyuki Fujikawa, Hayato Ida
  • Patent number: 10197934
    Abstract: A toner having a toner particle containing a binder resin, an amorphous polyester, and a colorant, wherein a softening point of the toner is at least 110° C. and not more than 140° C.; an integrated value f1 for stress of the toner is not more than 10 g·m/sec, as measured using a tack tester, with a temperature for a probe end being 150° C. and a press holding time being 0.01 seconds; and an integrated value f2 for stress of the toner is at least 30 g·m/sec, as measured using a tack tester, with a temperature for a probe end being 150° C. and a press holding time being 0.1 seconds.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: February 5, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takashi Matsui, Naoki Okamoto, Yuujirou Nagashima, Keisuke Tanaka, Shohei Tsuda, Kosuke Fukudome, Takuya Mizuguchi
  • Patent number: 10197928
    Abstract: The present invention relates to an electrophotographic photoreceptor which is a positive charging type electrophotographic photoreceptor comprising a conductive support and a photosensitive layer on the conductive support, wherein the photosensitive layer contains at least a charge generating material, a hole transport material, an electron transport material, and a binder resin in the same layer, and a residual potential VL1 at a point at which an exposure amount for forming a latent image is 0.3 ?J/cm2 is equal to or lower than 130 V when an initial surface potential V0 is set to +700 V, exposure with monochromatic light of 780 nm is performed and measurement is performed by a dynamic method.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: February 5, 2019
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Hiroe Fuchigami, Mitsuo Wada
  • Patent number: 10195667
    Abstract: A method includes placing an additively manufactured article having one or more internal channels in a non-reactive liquid to remove remainder powder from within the one or more internal channels, wherein the non-reactive liquid is a gas at room temperature and/or pressure. Placing the additively manufactured article in the non-reactive liquid includes can include placing the additively manufactured article in liquid nitrogen.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: February 5, 2019
    Assignee: Delavan Inc.
    Inventors: Diana Giulietti, Eric Karlen, Kiley J. Versluys
  • Patent number: 10193427
    Abstract: A method of making a component of a radial or axial flux electrical machine is provided. An additive manufacturing process is used to manufacture a plurality of laminas, including applying beams of energy to a successive plurality of ferromagnetic material particles and fusing them together to form a ferromagnetic helix or spiral, disposing an insulating material on said ferromagnetic helix or spiral, compressing the ferromagnetic helix or spiral to form a compressed ferromagnetic helix or spiral, and fixing the compressed ferromagnetic helix or spiral. A method of making a component of a transverse flux electrical machine is provided, including using an additive manufacturing process.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: January 29, 2019
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Anoop Jassal, Jan Erich Hemmelmann, Mohamed Osama
  • Patent number: 10191400
    Abstract: A toner for electrostatic charge image development includes toner base particles including at least a binder resin, has a volume resistivity of 1.0×1014 ?·cm or more at 25° C. with 50% RH by a temperature change method, and has a volume resistivity of 1.0×1015 ?·cm or less at 67° C. by the temperature change method.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: January 29, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Tatsuya Fujisaki, Junichi Furukawa
  • Patent number: 10183331
    Abstract: A method manufactures a metal alloy part by spark plasma sintering. The method includes the simultaneous application, inside a die, of a uniaxial pressure and of an electric current to a powder component material that has the following composition: 42 to 49% aluminum, 0.05 to 1.5% boron, at least 0.2% of at least one element selected from tungsten, rhenium and zirconium, optionally 0 to 5% of one or more elements selected from chromium, niobium, molybdenum, silicon and carbon, the balance being titanium and the total of the elements without aluminum and titanium being between 0.25 and 12%.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: January 22, 2019
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE—CNRS—, ONERA (OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AÉROSPATIALES)
    Inventors: Alain Couret, Jean-Philippe Monchoux, Marc Thomas, Thomas Voisin
  • Patent number: 10180633
    Abstract: An electrostatic latent image developing toner includes a plurality of toner particles each including a toner mother particle and inorganic particles attached to a surface of the toner mother particle. The toner mother particle includes a toner core (11) and a shell layer (12) covering a surface of the toner core (11). The shell layer (12) includes film-shaped first domains (12a) and particle-shaped second domains (12b). The first domains (12a) are substantially formed from a non-cross-linked resin. The second domains (12b) are substantially formed from a cross-linked resin. The cross-linked resin has a glass transition point higher by 40° C. or more than that of the non-cross-linked resin. The first domains (12a) have a surface adsorption force of at least 20.0 nN and no greater than 40.0 nN. The second domains (12b) have a surface adsorption force of at least 4.0 nN and less than 20.0 nN.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: January 15, 2019
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Tomoyasu Asakawa
  • Patent number: 10175592
    Abstract: A toner has positive chargeability. Particles of the toner each include a toner mother particle and external additive particles adhering to a surface of the toner mother particle. The external additive particles include first external additive particles and second external additive particles. The first external additive particles have positive chargeability and are each a first silica particle having a surface treated with a positive chargeability imparting agent and a hydrophobing agent. The second external additive particles have negative chargeability and are each a second silica particle having a surface treated only with a silane compound. The silane compound is at least one alkylalkoxysilane represented by formula (I) shown below. In formula (I), R1 represents an alkyl group having a carbon number of at least 8 and no greater than 16. R2, R3, and R4 each represent, independently of one another, an optionally substituted hydrocarbon group.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: January 8, 2019
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Masashi Yamashita
  • Patent number: 10175598
    Abstract: A release agent material including a blend of a nonfunctional siloxane release agent fluid and at least two different organo-functional siloxane release agent materials having amino-functional groups or alkyl functional groups, useful in machines having gamut extension capability.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: January 8, 2019
    Assignee: Xerox Corporation
    Inventors: Varun Sambhy, David S Derleth, Juan A Morales-Tirado, Santokh S Badesha