Patents Examined by Hoa T. Le
  • Patent number: 10106732
    Abstract: Electrically conductive proppant particles having non-uniform electrically conductive coatings are disclosed. The non-uniform electrically conductive coatings can have a thickness of at least about 10 nm formed on an outer surface of a sintered, substantially round and spherical particle, wherein less than 95% of the outer surface of the sintered, substantially round and spherical particle is coated with the electrically conductive material. Methods for making and using such electrically conductive proppant particles having non-uniform electrically conductive coatings are also disclosed.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: October 23, 2018
    Assignee: CARBO CERAMICS INC.
    Inventors: Chad Cannan, Lewis Bartel, Todd Roper
  • Patent number: 10071914
    Abstract: The present invention concerns Y-type FAU zeolites with hierarchical porosity having an Si/Al atomic ratio strictly greater than 1.4 and less than or equal to 6, having controlled and optimised crystallinity, and having mesoporosity such that the mesoporous outer surface area is between 40 m2·g?1 and 400 m2·g?1. The present invention also concerns the method for preparing said Y-type FAU zeolites with hierarchical porosity.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: September 11, 2018
    Assignee: Arkema France
    Inventors: Serge Nicolas, Ludivine Bouvier, Cécile Lutz
  • Patent number: 10074170
    Abstract: A method of producing a tablet in which an uncoated tablet is coated by a coating agent, the method including: a coating process of coating uncoated tablets with a coating agent by spray coating the coating agent onto tablets that are churned and tumbled inside a container, and drying the tablets inside the container by supplying drying air into the container and exhausting air from the container, wherein spray coating conditions, including air supply temperature, air supply rate, and spray speed, are controlled according to the weight of the coating agent with which the uncoated tablets are coated, such that the humidity of air exhausted during spray coating is within a range of from 14% RH to 30% RH.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: September 11, 2018
    Assignees: FUJI XEROX CO., LTD., Daiichi Sankyo Company, Limited
    Inventors: Kensuke Ito, Yasuhiro Suzuki
  • Patent number: 9975297
    Abstract: A polyamide powder is disclosed for use in a method of manufacturing a three-dimensional object by selectively solidifying layers of the polyamide powder at the locations corresponding to the cross-section of the object in the respective layer by application of electromagnetic radiation. The polyamide powder of the invention is reclaimed after manufacturing of an object and, then is treated with water or water vapor and subsequently dried. After treatment, the powder preferably can have a molar weight Mn (numeric average) of more than about 20,000 g/mol and a Mw (weight average) of more than about 40,000 g/mol. Also, the powder preferably has an excess of carboxylic end groups relative to amino end groups of at least 4:1 up to at most 200:1.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: May 22, 2018
    Assignee: EOS GmbH Electro Optical Systems
    Inventors: Andreas Pfister, Mandy Gersch
  • Patent number: 9943825
    Abstract: Provided are graft copolymer particles enabling introduction of adsorptive functional groups adsorbing metals and others, a method for producing same, and an adsorbent using same. (1) Porous graft copolymer particles containing graft chains introduced into porous particles (particle surface having an average pore diameter of 0.01-50 ?m) including at least one resin selected from olefin resins, water-insoluble modified polyvinyl alcohol resins, amide resins, cellulosic resins, chitosan resins and (meth)acrylate resins. (2) A method for producing porous graft copolymer particles including (I) melt-kneading a polymer A and a polymer B other than the polymer A to obtain a compound material, (II) extracting and removing the polymer B from the compound material to obtain a porous material of the polymer A, (III) granulating the porous material, and (IV) introducing graft chains into the porous particles. (3) An adsorbent of porous graft copolymer particles.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: April 17, 2018
    Assignee: KURARAY CO., LTD.
    Inventors: Keisuke Morikawa, Yusuke Amano, Naoyuki Iwachido, Naoki Fujiwara, Takumi Takayama
  • Patent number: 9945023
    Abstract: The invention is directed at sputter targets including 50 atomic % or more molybdenum, a second metal element of niobium or vanadium, and a third metal element selected from the group consisting of titanium, chromium, niobium, vanadium, and tantalum, wherein the third metal element is different from the second metal element, and deposited films prepared by the sputter targets. In a preferred aspect of the invention, the sputter target includes a phase that is rich in molybdenum, a phase that is rich in the second metal element, and a phase that is rich in the third metal element.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: April 17, 2018
    Assignee: H.C. STARCK, INC.
    Inventors: Gary Alan Rozak, Mark E. Gaydos, Patrick Alan Hogan, Shuwei Sun
  • Patent number: 9938443
    Abstract: A magnesium oxide material includes a magnesium oxide powder treated with a halogen compound and a silane coupling agent. A method of producing a magnesium oxide material includes a step including preparing a magnesium oxide powder, a halogen compound treatment step including subjecting the magnesium oxide powder to a surface treatment with a halogen compound, and a silane coupling agent treatment step including subjecting the magnesium oxide powder to a surface treatment with a silane coupling agent.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: April 10, 2018
    Assignee: UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Masayuki Fujimoto, Yuzo Kato, Seiji Noguchi
  • Patent number: 9938520
    Abstract: The present invention provides a cost-efficient method for producing particles having a SiO2 containing surface wherein said method comprises a) providing an aqueous reaction composition comprising i) core particles, ii) an added base, iii) a silicate salt, and iv) a pH modulator wherein the pH value of the reaction composition is above the gelation pH value; b) agitating said reaction composition, wherein the pH modulator decreases the pH value of the reaction composition over time and wherein due to said decrease of the pH value of the reaction composition SiO2 is deposited onto the core particles, whereby particles are formed which have a diameter of 30 ?m or less; and c) obtaining the particles. Furthermore, silica particles having high nucleic acid binding properties are provided.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: April 10, 2018
    Assignee: QIAGEN GmbH
    Inventor: Roland Fabis
  • Patent number: 9938628
    Abstract: The present invention is directed to composite nanoparticles comprising a metal, a rare earth element, and, optionally, a complexing ligand. The invention is also directed to composite nanoparticles having a core-shell structure and to processes for preparation of composite nanoparticles of the invention.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: April 10, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Binil Itty Ipe Kandapallil, Lakshmi Krishnan, Francis Johnson
  • Patent number: 9920193
    Abstract: Provided are: fine vinylidene fluoride resin particles which are solid and have an average particle diameter of 0.3 ?m or more but less than 100 ?m, a particle diameter distribution index of 1-2, a repose angle of less than 40°, and an average sphericity of 80 or more said fine vinylidene fluoride particles being suitable for coating materials and coating applications; and a method for producing the fine vinylidene fluoride resin particles.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: March 20, 2018
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Yuji Echigo, Makiko Saito, Itaru Asano, Yoko Wakahara, Hiroshi Takezaki
  • Patent number: 9908904
    Abstract: Surface-modified nanoparticles wherein each nanoparticle includes an inorganic core and surface modifying groups, wherein the surface modifying groups include at least one triorganoborane-amine complex having the structure —Z—NHR1—B(R2)3 wherein: Z is a divalent organic group; R1 is H or an organic group; and each R2 is independently an organic group bound to the boron atom through a carbon atom. The inorganic core is typically an inorganic oxide core, e.g., silica, zirconia, or alumina.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: March 6, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: James E. Garbe, Jimmie R. Baran, Jr.
  • Patent number: 9868803
    Abstract: This invention relates to colored polymer, a process for their preparation, electrophoretic fluids comprising such particles, and electrophoretic display devices comprising such fluids.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: January 16, 2018
    Assignee: Merck Patent GmbH
    Inventors: Louise Diane Farrand, Nils Greinert, Claire Topping, Jonathan Henry Wilson, Simon Biggs, Olivier Cayre, Simon Lawson, Alexandre Richez, Simone Stuart-Cole
  • Patent number: 7507471
    Abstract: Epoxy laminates, e.g. CEM-1 laminates, include polymeric particles, particularly core-shell particles having an average diameter of about 0.05 to 30 ?m, which reduce the dust produced during manufacture of printed circuit boards.
    Type: Grant
    Filed: October 10, 1995
    Date of Patent: March 24, 2009
    Assignee: Isola USA Corp
    Inventor: Mark D. Holte
  • Patent number: 7153574
    Abstract: A composition includes a metal oxide particle, which can optionally be surface treated by a silane coupling agent, and an electron acceptor surface grafted to the metal oxide particle.
    Type: Grant
    Filed: July 16, 2004
    Date of Patent: December 26, 2006
    Assignees: Xerox Corporation, Fuji Xerox Co., Ltd.
    Inventors: Yu Qi, Nan-Xing Hu, Ah-Mee Hor, Hidemi Nukada, Hirofumi Nakamura
  • Patent number: 6635348
    Abstract: Provided is an aerosol method, and accompanying apparatus, for preparing powdered products of a variety of materials involving the use of an ultrasonic aerosol generator (106) including a plurality of ultrasonic transducers (120) underlying and ultrasonically energizing a reservoir of liquid feed (102) which forms droplets of the aerosol. Carrier gas (104) is delivered to different portions of the reservoir by a plurality of gas delivery ports (136) delivering gas from a gas delivery system. The aerosol is pyrolyzed to form particles, which are then cooled and collected. The invention also provides powders made by the method and devices made using the powders.
    Type: Grant
    Filed: September 22, 2000
    Date of Patent: October 21, 2003
    Assignee: Superior MicroPowders LLC
    Inventors: Mark J. Hampden-Smith, Toivo T. Kodas, Quint H. Powell, Daniel J. Skamser, James Caruso, Clive D. Chandler
  • Patent number: 6589647
    Abstract: In a thermoplastic elastomer having a matrix phase of a thermoplastic resin and a domain phase of rubber particles at least a part of which is crosslinked, use is made of rubber particles at least a part of which is conductive to provide a conductive thermoplastic elastomer composition having a volume resistivity that can be controlled over a wide range of from a conductive region (104 ((&OHgr;·cm) or less) to an insulting region (1013 (&OHgr;·cm) or more).
    Type: Grant
    Filed: August 30, 1999
    Date of Patent: July 8, 2003
    Assignee: The Yokohama Rubber Company, Ltd.
    Inventors: Osamu Ozawa, Kazuhiro Imada
  • Patent number: 6511739
    Abstract: Transparent solid, fused microspheres are provided. In one embodiment, the microspheres contain alumina, zirconia, and silica in a total content of at least about 70% by weight, based on the total weight of the solid, fused microspheres, wherein the total content of alumina and zirconia is greater than the content of silica, and further wherein the microspheres have an index of refraction of at least about 1.6 and are useful as lens elements.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: January 28, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Toshihiro Kasai, Kenton D. Budd, Stephen L. Lieder, James A. Laird, Chikafumi Yokoyama, Toshinori Naruse, Kenji Matsumoto, Hirohiko Ono
  • Patent number: 6506493
    Abstract: Manganese oxide particles have been produced having an average diameter less than about 500 nm and a very narrow distribution of particle diameters. Methods are described for producing metal oxides by performing a reaction with an aerosol including a metal precursor. Heat treatments can be performed in an oxidizing environment to alter the properties of the manganese oxide particles.
    Type: Grant
    Filed: November 9, 1998
    Date of Patent: January 14, 2003
    Assignee: NanoGram Corporation
    Inventors: Sujeet Kumar, James T. Gardner, Xiangxin Bi, Nobuyuki Kambe
  • Patent number: 6482518
    Abstract: An excipient for lyophilizing a suspension of microparticles is provided comprising an oil-in-water emulsion of an aqueous phase and an organic phase where the organic phase has a freezing point of about or higher than the freezing point of the aqueous phase. When frozen and dried with a suspension of microparticles, the organic phase is substantially removed and a dry formulation is formed of discrete microparticles substantially free of aggregates.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: November 19, 2002
    Assignee: Point Biomedical Corporation
    Inventors: Robert E. Short, Thomas B. Ottoboni
  • Patent number: 6482534
    Abstract: A spray powder which has a particle size of from 6 to 63 &mgr;m and which comprises from 75 to 95 wt % of a ceramic phase made of a WC powder and at least one chromium carbide powder selected from the group consisting of Cr3C2, Cr7C3 and Cr23C6, and from 5 to 25 wt % of a metal phase made of a Ni or Ni-based alloy powder, wherein the mean particle size of primary particles of the WC powder constituting the ceramic phase is from 5 to 20 &mgr;m, and the mean particle size of primary particles of the chromium carbide powder is from 1 to 10 &mgr;m.
    Type: Grant
    Filed: February 13, 2001
    Date of Patent: November 19, 2002
    Assignee: Fujimi Incorporated
    Inventors: Tsuyoshi Itsukaichi, Satoru Osawa