Patents Examined by H. (Holly) T. Le
  • Patent number: 8084179
    Abstract: A toner including: toner particles which include: a colorant, a releasing agent, and a binder resin. The number average particle diameter of the toner particles is in the range of from 3.5 ?m to 6.5 ?m, wherein the number average particle diameter is determined by the Coulter method, the variation coefficient of the number distribution of the toner particles is in the range of 22.0 to 35.0, wherein the variation coefficient is found by dividing the standard deviation of the number distribution by the number average particle diameter, and 40% by number to 59% by number of the toner particles are 4.0 ?m to 8.0 ?m in diameter.
    Type: Grant
    Filed: August 30, 2007
    Date of Patent: December 27, 2011
    Assignee: Ricoh Company, Ltd.
    Inventor: Kumi Hasegawa
  • Patent number: 8048967
    Abstract: A method for preparing nylon microspheres is provided, said method comprising steps (1), (2) and (3) or steps (1?), (2) and (3) as follows: (1) a radically polymerizable monomer is dispersed in a molten lactam monomer, and a free radical initiator is added, so that radical polymerization of the radically polymerizable monomer is carried out, to give a mixture of a free radical polymer and the lactam monomer; or (1?) a mixture of a free radical polymer and a molten lactam monomer is provided; and (2) an initiator and an activator, used for anionic ring-opening polymerization of the lactam monomer, are added to the mixture obtained in step (1) wherein the remaining radically polymerizable monomer and water are removed, or to the mixture obtained in step (1?), so that the anionic ring-opening polymerization of the lactam is carried out to give a polymer alloy of the free radical polymer/polyamide; and (3) the free radical polymer in the polymer alloy obtained in step (2) is removed by dissolution, giving nylon m
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: November 1, 2011
    Assignee: Shanghai Genius Advanced Material (Group) Company, Ltd.
    Inventors: Aihua Pei, Tingxiu Xie, Guisheng Yang
  • Patent number: 8025972
    Abstract: Sodium percarbonate particles presenting an improved long term stability expressed as a heat output at 40° C. measured after storage during 12 weeks at 40° C., of less than 5 ?W/g, or expressed as an Avox recovery of at least 70 after storage for 8 weeks at 55° C. Process for the production of these particles. Use of these particles as bleaching agent in detergent compositions and detergent compositions containing them.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: September 27, 2011
    Assignee: SOLVAY (Société Anonyme
    Inventors: Alfred Söntgerath, Gerd Hecken, Jüergen H. Rabe, Henk L. J. Venbrux
  • Patent number: 8017238
    Abstract: To provide a tungsten oxide photocatalyst which shows a high photocatalytic activity by irradiating with visible light even under the environment where ultraviolet light is not irradiated, the tungsten oxide photocatalyst has tungsten oxide particles and Pt particles having a primary particle size of 3 to 20 nm supported on the surface of the tungsten oxide particles in an amount of 0.03 to 5 parts by weight based on 100 parts by weight of the tungsten oxide particles.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: September 13, 2011
    Assignees: National University Corporation Hokkaido University, Sumitomo Chemical Company, Limited
    Inventors: Bunsho Ohtani, Ryu Abe, Yoshiaki Sakatani, Makoto Murata, Hiroaki Nishimine
  • Patent number: 8007907
    Abstract: A glass-containing molding composition is prepared by incorporating glass powder into a thermoplastic resin at a glass load ratio of 40 to 70 percent by weight, in which the glass powder is composed of solid spherical glass particles which have an average particle size of 10 to 40 ?m and whose surfaces are totally covered with a silane compound and which exhibits reduction ratios of melt flow rate on a parabolic curve with the increase of glass load ratios and has a reduction ratio of melt flow rate of 3/4 to 1/4 within a glass load ratio in a range of 40 to 64 percent by weight.
    Type: Grant
    Filed: October 3, 2008
    Date of Patent: August 30, 2011
    Inventor: Kenji Nakamura
  • Patent number: 8003214
    Abstract: The present invention is directed to an improved thermoplastic material-coated particulate composition useful for hydraulic fracturing treatments, gravel packing for sand control or other well formation treatments and especially the related methods of its use and is particularly directed to using a thermoplastic material as part of a particulate composition in a method for enhancing the stabilization of and reducing particulate flowback and fines transport in a well formation.
    Type: Grant
    Filed: July 12, 2006
    Date of Patent: August 23, 2011
    Assignee: Georgia-Pacific Chemicals LLC
    Inventors: Richard Rediger, Michael J. Aron, Bedford W. Fennell
  • Patent number: 7998582
    Abstract: The present invention relates to a particulate mixed metal hydroxide that includes nickel, cobalt and aluminium. The powder particles have a core of nickel/cobalt hydroxide, and a surface that is coated with amorphous aluminium hydroxide. A process for the continuous preparation of such mixed metal hydroxides is also described. The process includes precipitating aluminium hydroxide in the presence of a nickel/cobalt mixed hydroxide in a tube reactor. The mixed metal hydroxides of the present invention may be used to prepare active materials for positive electrodes of a secondary battery.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: August 16, 2011
    Assignee: Toda Kogyo Europe GmbH
    Inventors: Sven Albrecht, Michael Kruft, Armin Olbrich, Stefan Malcus, Wolfgang Wiezoreck, Trevor McLeod, Shuja Siddiqui, Rob Rops, Hirofumi Hori
  • Patent number: 7993747
    Abstract: A light emitting composition includes a light-emitting lumophore-functionalized nanoparticle, such as an organic-inorganic light-emitting lumophore-functionalized nanoparticle. A light emitting device includes an anode, a cathode, and a layer containing such a light-emitting composition. In an embodiment, the light emitting device can emit white light.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: August 9, 2011
    Assignee: Nitto Denko Corporation
    Inventors: Amane Mochizuki, Jesse Dan Froehlich, Sheng Li, Toshitaka Nakamura, Robin Irene Young, Ghassan E. Jabbour, Michael E. Lauters
  • Patent number: 7993749
    Abstract: Acid-labile poly(N-vinyl formamide) (“PNVF”) nanocapsules were synthesized by free radical polymerization of N-vinyl formamide with optional active ingredients on the surface of silica nanoparticles. Polymerization in the presence of a novel cross-linker that contains an acid-labile ketal facilitated stable etching of silica nanoparticle templates using sodium hydroxide and recovery of PNVF nanocapsules. The formamido side group of PNVF was then hydrolyzed by extended exposure to sodium hydroxide to produce polyvinylamine (“PVAm”) nanocapsules. PNVF and PVAm nanoparticles are also synthesized that form nanogels with optional active ingredients.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: August 9, 2011
    Assignee: University of Kansas
    Inventors: Cory J. Berkland, Lianjun Shi
  • Patent number: 7985476
    Abstract: The present invention provides a transparent inorganic oxide dispersion which makes it possible to improve the refractive index and mechanical characteristics and to maintain transparency by modifying the surface of inorganic oxide particles with a surface modifier having one or more reactive functional groups; and an inorganic oxide particle-containing resin composition in which the transparent inorganic oxide dispersion and a resin are compositely integrated by the polymerization reaction, a composition for sealing a light emitting element, a light emitting element, and a method for producing an inorganic oxide particle-containing resin composition; and a hard coat film which has high transparency and makes it possible to improve a refractive index and tenacity, an optical functional film, an optical lens and an optical component.
    Type: Grant
    Filed: October 24, 2006
    Date of Patent: July 26, 2011
    Assignee: Sumitomo Osaka Cement Co., Ltd.
    Inventors: Yasuyuki Kurino, Toru Kinoshita, Naoki Takamiya, Yoshitaka Yamamoto, Tsuyoshi Kawase, Yoshizumi Ishikawa, Yoichi Sato, Ryosuke Nakamura, Yuko Katsube
  • Patent number: 7981512
    Abstract: Organic polymer particles having a structure shown by the following formula (1) are disclosed. wherein A represents an alkylidene group, an alkylene group, a cyclohexylene group, or a phenylene group, and B represents a linear or branched alkylene group or an alkylidene group having 1 to 6 carbon atoms.
    Type: Grant
    Filed: July 5, 2007
    Date of Patent: July 19, 2011
    Assignee: JSR Corporation
    Inventors: Kouji Tamori, Eiji Takamoto, Takahiro Kawai
  • Patent number: 7972694
    Abstract: A semiconductor nanoparticle and semiconductor nanorod that have optical characteristics (luminescence intensity and emission lifetime) superior to those of conventional core/shell nanosized semiconductors. There are provided a triple-layer semiconductor nanoparticle, and triple-layer semiconductor nanorod, having an average particle diameter of 2 to 50 nm and comprising a core layer, an interlayer and a shell layer, wherein the layers are composed of different crystals, and wherein the crystal constructing the shell layer exhibits a band gap greater than that of the crystal constructing the core layer, and wherein the crystal constructing the interlayer has a lattice constant assuming a value between those of the crystal constructing the core layer and the crystal constructing the shell layer.
    Type: Grant
    Filed: November 27, 2006
    Date of Patent: July 5, 2011
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Mitsuru Sekiguchi, Kazuya Tsukada, Hisatake Okada
  • Patent number: 7959992
    Abstract: An ink receiving substrate includes a substrate layer and organic modified silica dispensed on at least one surface of the support layer, wherein the organic modified silica includes inorganic particulates and silane coupling agents having guanidine or biguanidine functional groups.
    Type: Grant
    Filed: July 6, 2006
    Date of Patent: June 14, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Tienteh Chen
  • Patent number: 7960025
    Abstract: The invention relates to nanoparticles of noble metals, having a controlled microstructure which leads to the appearance of ferromagnetic behaviour in said nanoparticles, thereby enabling the use of very small magnets (<5 nm) in a range in which standard ferromagnetic metals behave as superparamagnetic entitles (disappearance of hysteresis cycle). The inventive nanoparticles can be used, for example, to reduce the dimensions in magnetic recordings, as well as in biomedicine as tools for biomolecule recognition, nuclear magnetic resonance imaging, drug-release control or hypothermia treatments.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: June 14, 2011
    Assignees: Consejo Superior De Investigaciones Cientificas, Universidad Complutense De Madrid
    Inventors: M' Asunción Fernandez Camacho, Rocio Litran Ramos, Teresa Cristina Rojas Ruiz, Juan Carlos Sanchez Lopez, Antonio Hernando Grande, Patricia Crespo Del Arco, Blanca Sampedro Rozas
  • Patent number: 7955411
    Abstract: A bonding material comprising metal particles coated with an organic substance having carbon atoms of 2 to 8, wherein the metal particles comprises first portion of 100 nm or less, and a second portion larger than 100 nm but not larger than 100 ?m, each of the portions having at least peak of a particle distribution, based on a volumetric base. The disclosure is further concerned with a bonding method using the bonding material.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: June 7, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Yusuke Yasuda, Toshiaki Morita, Eiichi Ide, Hiroshi Hozoji, Toshiaki Ishii
  • Patent number: 7951418
    Abstract: This invention relates to the control of radiant thermal energy and more specifically to highly Thermal Infrared (IRT) reflective pigments for use in decorative coatings for buildings or other areas where the control of IRT energy and visual decoration are required. Control of the spread of thermal energy in domestic buildings through passive techniques reduces energy consumption by reducing reliance on heating in cool environments and cooling air-conditioning in warm environments. A number of paint formulations having low emissivity in the thermal infrared exist which are based on variants of conventional decorative paint fluids. There are a number of problems associated with such formulations such as susceptibility to damage and high emissivity for certain color pigmentations. The present invention proposes a low emissivity flake for use in a paint formulation which substantially overcomes the problems associated with the prior art.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: May 31, 2011
    Assignee: Qinetiq Limited
    Inventor: Eoin O'Keefe
  • Patent number: 7951309
    Abstract: A process for the preparation of amorphous aluminum phosphate or polyphosphate-based pigment by reacting aluminum phosphate and sodium aluminate is provided. The amorphous aluminum phosphate or polyphosphate is characterized by a skeletal density of less than 2.50 grams per cubic centimeter and a phosphorus to aluminum mole ratio of greater than 0.8. In one embodiment, the composition is useful in paints as a substitute for titanium dioxide.
    Type: Grant
    Filed: August 10, 2007
    Date of Patent: May 31, 2011
    Assignee: Bunge Fertilizantes S.A.
    Inventors: Fernando Galembeck, João de Brito, Ádamo César Mastrângelo Amaro dos Santos, Renato Rosseto
  • Patent number: 7943194
    Abstract: The present invention relates to process for the production of plane-parallel platelets, comprising the steps of: a) vapor-deposition of a separating agent onto a carrier to produce a separating agent 5 layer, b) vapor-deposition of at least one product layer onto the separating agent layer, and c) dissolution of the separating agent layer in a solvent and production of a suspension in which the at least one product layer is present in the form of plane-parallel platelets, wherein the separating agent is selected from the group consisting of anthracene, anthraquinone, acetamidophenol, acetylsalicylic acid, camphoric anhydride, benzimidazole, benzene-1,2,4-tricarboxylic acid, biphenyl-2,2-dicarboxylic acid, bis(4-hydroxyphenyl)sulfone, dihydroxyanthraquinone, hydantoin, 3-hydroxybenzoic acid, 8-hydroxyquinoline-5-sulfonic acid monohydrate, 4-hydroxycoumarin, 7-hydroxycoumarin, 3-hydroxynaphthalene-2-carboxylic acid, isophthalic acid, 4,4-methylene-bis-3-hydroxynaphthalene-2-carboxylic acid, naphthalene-1,8-dic
    Type: Grant
    Filed: August 15, 2005
    Date of Patent: May 17, 2011
    Assignee: BASF SE
    Inventors: Patrice Bujard, Ulrich Berens
  • Patent number: 7943236
    Abstract: Porous polymer microspheres having a size of from about 3 to about 50 microns and a geometric standard deviation of about 1.25 or less are disclosed. The porous polymer microspheres are made by a method including the steps of preparing an emulsion comprised of polymer particles having an average particle size of less than about 3 microns and a diluent, subjecting the emulsion to an aggregating condition to form aggregated polymer particles, optionally coalescing the aggregated polymer particles, and removing the diluent to form the porous polymer microspheres.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: May 17, 2011
    Assignee: Xerox Corporation
    Inventors: Chieh-Min Cheng, Mark A. Jackson
  • Patent number: 7935414
    Abstract: An electroactive material comprises multiple layers of electroactive composite with each layer having unique dielectric, electrical and mechanical properties that define an electromechanical operation thereof when affected by an external stimulus. For example, each layer can be (i) a 2-phase composite made from a polymer with polarizable moieties and an effective amount of carbon nanotubes incorporated in the polymer for a predetermined electomechanical operation, or (ii) a 3-phase composite having the elements of the 2-phase composite and further including a third component of micro-sized to nano-sized particles of an electroactive ceramic incorporated in the polymer matrix.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: May 3, 2011
    Assignee: United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Zoubeida Ounaies, Cheol Park, Joycelyn S. Harrison, Nancy M. Holloway, Gregory K. Draughon