Patents Examined by Hoa (Holly) Le
  • Composition of precipitated calcium carbonate, method of producing the same and the uses thereof
    Patent number: 11053642
    Abstract: Composition of precipitated calcium carbonate and method of producing the same and the uses of the composition. The composition comprises a plurality of essentially spherical granules having an average diameter of 1-50 um formed from primary precipitated calcium carbonate particles having an average diameter of 30 to 60 nm, capable of liberating at least a part of the primary particles by deagglomeration in aqueous suspension. The present compositions can be used for modifying binders of paints, printing inks, plastics, adhesives, sealants and surface sizes and pulp sizes. The invention further concerns a method for storing of precipitated calcium carbonate particles having an average diameter in the nanometer range.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: July 6, 2021
    Assignee: FP-PIGMENTS OY
    Inventors: Aarni Esko, Sami Haakana, Jarmo Tolonen, Jorma Viitanen, Eija Pekkala
  • Silver-coated alloy powder, electrically conductive paste, electronic part, and electric device
    Patent number: 11041229
    Abstract: An object of the present invention is to provide metal powder that can be used to form an external electrode, which is excellent in solder wettability and solder leach resistance while having a layer structure with fewer layers than in the related art and, furthermore, is excellent in electrical conductivity. This silver-coated alloy powder comprises a coating layer on a surface of an alloy core particle containing copper, nickel, zinc, and inevitable impurities, the coating layer containing silver.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: June 22, 2021
    Assignee: DOWA ELECTRONICS MATERIALS CO., LTD.
    Inventors: Kyoso Masuda, Kenichi Inoue, Yuki Kaneshiro, Atsushi Ebara, Yoshiyuki Michiaki, Kozo Ogi, Takahiro Yamada, Masahiro Yoshida
  • Glass ball having specific Young's modulus and coefficient of thermal expansion
    Patent number: 11028015
    Abstract: A glass ball has a density of 2.3 to 3.2 g/cm3, a Young's modulus of 60 to 150 GPa, and an average coefficient of thermal expansion at 50 to 350° C. being 40×10?7 to 120×10?7/° C. The glass ball is formed of a glass material including, as represented by mole percentage based on oxides, 30 to 75 mol % of SiO2, 2 to 30 mol % of Al2O3, and 5 to 25 mol % of R2O, where R is at least one kind selected from Li, Na and K. The glass ball includes a compressive stress layer in a surface thereof.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: June 8, 2021
    Assignee: AGC Inc.
    Inventors: Akio Koike, Makoto Katsuta, Suguru Murayama, Kenji Imakita
  • Functionalized metal chalcogenides of partially it crystalline phase
    Patent number: 11028271
    Abstract: The present disclosure relates to a composition that includes a metal chalcogenide having a surface and a ligand, where the ligand is covalently bound to the surface. In some embodiments of the present disclosure, the metal chalcogenide may be defined by MXz, where Z is between 1 and 3, inclusively, M (a metal) includes at least one of Sc, Zr, Hf, Zr, Ti, Nb, Ta, V, Mo, Cr, Re, W, S, Pt, Fe, Cu, Sb, In, Zn, Cd, P, and/or Mn, and X (a chalcogenide) includes at least one of S, Se, and/or Te.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: June 8, 2021
    Assignee: Alliance for Sustainable Energy, LLC
    Inventors: Hanyu Zhang, Eric Edward Benson, Jeffrey Lee Blackburn, Elisa Margaret Link
  • Quantum dot, light emitting material and manufacturing method of quantum dot comprising thermal treatment of solution containing formed quantum dot
    Patent number: 11008512
    Abstract: A quantum dot, a light emitting material, and a manufacturing method of quantum dot are provided. A ratio of an emission intensity to an absorption intensity of the quantum dot at a characteristic wavelength ranges from 1.5×108 CPS/Abs. to 2.0×109 CPS/Abs. The characteristic wavelength is a shorter wavelength of two wavelengths corresponding to half of a maximum intensity of an emission peak of the quantum dot.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: May 18, 2021
    Assignee: Chi Mei Corporation
    Inventor: Keng-Chu Lin
  • Silica-coated expanding agents and their use in cementitious systems
    Patent number: 11008256
    Abstract: The invention relates to a process for preparing silica-coated particles of an inorganic expanding agent, the silica-coated particles and their use. The silica-coated particles show a delayed release of the expanding agent particularly in alkaline medium and at elevated temperatures. They are therefore useful in the oil and construction industry.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: May 18, 2021
    Assignee: BASF SE
    Inventors: Radoslaw Kierat, Michael Klemens Mueller, Andreas Kempter, Oscar Lafuente Cerda, Kai Bergner
  • Laminate comprising tantalum oxide and method of producing the same, gas barrier film and method of producing the same, and organic light-emitting element
    Patent number: 11005065
    Abstract: A laminate includes: a substrate having a first surface and made of a high-molecular-weight material; an undercoat layer located on at least part of the first surface of the substrate and containing a first inorganic substance that has adsorption sites to be coupled to precursors serving as film-forming materials of an atomic layer deposition film; a functional layer located covering an outer surface of the undercoat layer and containing a second inorganic substance to be coupled to the adsorption sites of the undercoat layer, the functional layer being the atomic layer deposition film formed of the precursors; and an overcoat layer located covering an outer surface of the functional layer and containing a third inorganic substance.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: May 11, 2021
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventors: Jin Sato, Mitsuru Kano, Hiroshi Koyama, Kyoko Kuroki
  • Thermoplastic polymer particles having low impurity content
    Patent number: 11001677
    Abstract: Provided are thermoplastic polymer particles having an aspect ratio of 1.00 or more and less than 1.05, and a roundness of 0.95 to 1.00. The thermoplastic polymer particles are formed from a thermoplastic polymer resin in a continuous matrix phase. The thermoplastic polymer particles show a peak cold crystallization temperature (Tcc) at a temperature between a glass transition temperature (Tg) and the melting point (Tm) in a differential scanning calorimetry (DSC) curve which is derived from temperature rise analysis at 10° C./min by differential scanning calorimetry.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: May 11, 2021
    Inventors: Jae Ho Lim, Sung Yong Kang, Kyoung Min Kang, Hee-Jung Lee, Min Gyung Kim, Chang-Young Park, Jun Ho Choi, Jae Han Song, Yu Jin Go
  • Molded product of magnetic powder composition comprising magnetic powder of surface-treated magnetite particles, and methods of producing thereof
    Patent number: 11004582
    Abstract: A magnetic powder is obtained by removing a dispersion medium from a magnetic fluid that includes magnetic particles, a dispersant and the dispersion medium. A magnetic powder composition includes the magnetic powder and a resin material, and a magnetic powder composition molded body is obtained therefrom. A method of producing a magnetic powder includes removing a dispersion medium from a magnetic fluid containing magnetic particles, a dispersant and the dispersion medium, and powdering a solid component obtained by removing the dispersion medium. A method of producing a magnetic powder composition and a method of producing a magnetic powder composition molded product are also provided.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: May 11, 2021
    Assignee: SOMAR CORPORATION
    Inventors: Hirohisa Ishizaki, Akira Ochiai
  • Flakes with undulate borders and methods of forming thereof
    Patent number: 11001720
    Abstract: The invention provides a plurality of substantially same planar pigment flakes, each formed of one or more thin film layers. Each flake has a face surface and a flake border delimiting the face surface; the flake border undulates in the plane of the flake. The flakes have a pre-selected shape, may have a symbol or a grating thereon. A method of manufacturing of these flakes including the steps of: (a) providing a substrate having a plurality of one-flake regions and a plurality of depressions or protrusions disposed therebetween and not extending into the one-flake regions, (b) coating the substrate with a releasable coating, and (c) removing the releasable coating and breaking it into the flakes; wherein two adjacent of the one-flake regions are separated by at least three of the depressions or protrusions for facilitating the breaking of the releasable coating into the flakes.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: May 11, 2021
    Assignee: VIAVI SOLUTIONS INC.
    Inventors: Alberto Argoitia, Cornelis Jan Delst, Laurence Holden
  • Absorber coating for solar heat power generation and manufacturing method thereof
    Patent number: 11002466
    Abstract: An absorber coating is provided for solar heat power generation that has excellent thermal oxidation resistance and a high spectral absorptance and manufacturing method thereof. The absorber coating for solar heat power generation has a network structure of composite particles comprising: particles of metal oxide containing mainly two or more metals selected from Mn, Cr, Cu, Zr, Mo, Fe, Co and Bi, and titanium oxide partly or entirely coating on the surface of the particle of the metal oxide. The arithmetic mean estimation of the surface of the coating is 1.0 ?m or more, and a ratio of a network area of the composite particle to a plane area of the coating is 7 or more.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: May 11, 2021
    Inventors: Kaoru Tsuda, Yasushi Murakami
  • Dispersion system for quantum dots having organic coatings comprising free polar and non-polar groups
    Patent number: 10995267
    Abstract: Disclosed herein are methods and compositions of nanoparticles having one or more layers of organic coating. In some embodiments, a nanoparticle comprises a core/shell nanocrystal comprising a first coating layer comprising a plurality of organic molecules, and a second organic coating layer surrounding the first organic coating layer, wherein the second coating layer comprises a plurality of organic molecules. Further, the organic molecules of the second coating layer are intercalated between the organic molecules of the first coating layer.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: May 4, 2021
    Assignee: CRYSTALPLEX CORPORATION
    Inventor: Matthew W. Bootman
  • Coated proppants for fracking extraction methods
    Patent number: 10995264
    Abstract: The invention relates to coated support means for fracking mining methods, containing an inorganic substrate material and a coating containing polymers of one or more ethylenically unsaturated monomers from the group containing vinyl esters of unbranched or branched alkyl carboxylic acids with 1 to 15 C atoms, methacrylic acid esters and acrylic acid esters of alcohols with 1 to 15 C atoms, vinyl aromatics, olefins, dienes and vinyl halides, characterised in that the polymers are obtained by means of radical-initiated polymerisation in an aqueous medium, wherein 0.5 to 20 wt. % of ethylenically unsaturated and silane group-containing monomers are copolymerised, in relation to the total weight of the monomers.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: May 4, 2021
    Assignee: Wacker Chemie AG
    Inventors: Thomas Bastelberger, Abdulmajid Hashemzadeh, Stephan Karpfhammer, Arndt Schlosser
  • Elongated abrasive particle with enhanced retention features
    Patent number: 10988648
    Abstract: The present inventive subject matter provides an abrasive particle. The abrasive particle can include an elongated body that is defined between opposed first and second ends. Each end defines a substantially planar surface. An axis extends through the first and second ends, and each end has a respective first and second cross-sectional area. At least one of the first and second ends is oriented at an angle relative to the axis that is less than 90 degrees. The elongated body has a variable cross-sectional area centered along the axis. At least one cross-sectional area between the first and second ends represents a local minimum cross-sectional area.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: April 27, 2021
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventor: Negus B. Adefris
  • Proppant having non-uniform electrically conductive coatings and methods for making and using same
    Patent number: 10975295
    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: October 22, 2018
    Date of Patent: April 13, 2021
    Assignee: CARBO CERAMICS, INC.
    Inventors: Chad Cannan, Lewis Bartel, Todd Roper
  • Ultrathin chemically toughened glass article and method for the production of such a glass article
    Patent number: 10974990
    Abstract: A method for producing an ultrathin chemically toughened glass article is provided that includes: providing an ultrathin glass sheet with a first surface and a second surface joined by at least one edge, having a thickness between the first and the second surface, chemically toughening the ultrathin glass sheet to produce an ultrathin toughened glass article. The method includes applying an edge pre-treatment to the at least one edge, preferably all edges, of the ultrathin glass sheet prior to the chemical toughening in order to reduce and/or blunt edge defects and to increase resistance to breakage of the ultrathin glass sheet during the chemical toughening.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: April 13, 2021
    Assignee: SCHOTT GLASS TECHNOLOGIES (SUZHOU) CO. LTD.
    Inventors: Ning Da, Feng He, Pengxiang Qian
  • Water absorption treatment material comprising granular core and coating containing polymer particles therein
    Patent number: 10973707
    Abstract: The present invention provides a water absorption treatment material that has a structure suitable for obtaining a high level of water disintegrability. A water absorption treatment material is a water absorption treatment material that absorbs a liquid, and includes a granular core portion and a coating layer portion. The granular core portion has a granular shape. The granular core portion contains a first water-absorbent polymer. The coating layer portion covers the granular core portion. The coating layer portion contains a second water-absorbent polymer. The second water-absorbent polymer has a mean particle size smaller than the mean particle size of the first water-absorbent polymer.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: April 13, 2021
    Assignee: DAIKI CO., LTD.
    Inventors: Hiroshi Ito, Junji Yoshinaga
  • Concentrated aqueous solutions of aluminum chlorohydrate monohydrate
    Patent number: 10947124
    Abstract: A system and method for producing commercial strength solutions of aluminum chlorohydrate are provided. The method includes providing aluminum chlorohydrate monohydrate (ACHMH) powder, heating water to at least 120° F. and less than 200° F., and dissolving at least a portion of the ACHMH powder into the heated water to form the solution of aluminum chlorohydrate. The produced solution of aluminum chlorohydrate from the ACHMH powder has an aluminum oxide concentration ranging from about 18 wt % to about 27 wt %, has a basicity ranging from greater than 74% and less than 83%, and has a freezing point ranging from about 10° F. to about 16° F. The solution may also have an iron content of between about 0 to about 70 ppm as Fe.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: March 16, 2021
    Assignee: USALCO, LLC
    Inventors: James M. Dulko, Bruce Wonder
  • Metal particle-chitin composite materials and methods of making thereof
    Patent number: 10941258
    Abstract: Methods for making metal particle-chitin composite materials are described. The methods can comprise contacting an ionic liquid with chitin, thereby forming a mixture; contacting the mixture with a non-solvent, thereby forming a chitin substrate in the non-solvent; collecting the chitin substrate from the non-solvent; deacetylating the collected chitin substrate, thereby forming a deacetylated chitin substrate; contacting the deacetylated chitin substrate with a metal salt, thereby forming an impregnated precursor composite material; and contacting the impregnated precursor composite material with a reducing agent, thereby reducing the metal salt to form a plurality of metal particles dispersed on the chitin substrate and forming the metal particle-chitin composite material.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: March 9, 2021
    Assignees: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ALABAMA, 525 Solutions, Inc.
    Inventors: Robin D. Rogers, Oleksandra Zavgorodnya, Julia L. Shamshina
  • Method for producing a highly porous fine powdered slaked lime composition, and product obtained therefrom
    Patent number: 10934210
    Abstract: The present invention relates to a method for producing a highly porous fine powdery slaked lime composition, comprising a fluidification step for forming said highly porous fine powdery slaked lime composition having an Alpine fluidity greater than 50% and which is carried out in a dryer/grinder chosen from the group consisting of a pin-type dryer/grinder, a cage-type dryer/grinder, an instantaneous dryer/disagglomerator and a combination of these until the powdery slaked lime composition has a non-solid residual-phase content of less than or equal to 3.5% by weight and greater than or equal to 0.3% by weight, as well as the product obtained therefrom.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: March 2, 2021
    Assignee: S. A. Lhoist Recherche et Developpement
    Inventor: Marion Lorgouilloux