Patents Examined by Lynne Edmondson
  • Patent number: 10563121
    Abstract: A method includes obtaining particles of a phosphor precursor of formula Ax[MFy]:Mn4+, reducing sizes of the particles of the phosphor precursor by wet milling the particles and annealing the particles that are wet milled by contacting the particles with a fluorine-containing oxidizing agent. Additionally, a manganese doped complex fluoride phosphor prepared by this method is provided. A lighting apparatus and backlight device that include manganese-doped phosphor prepared by this method also are provided.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: February 18, 2020
    Inventors: William Winder Beers, Jianmin He, Fangming Du, James Edward Murphy, William Erwin Cohen, Clark David Nelson, Cynthia Susan Link
  • Patent number: 10544482
    Abstract: Process to recover copper from a process feed including one or more feed components containing a base metal sulphidic feed, iron, copper and arsenic. Process feed and aqueous quench solution are introduced to a pressure oxidative leaching step with a partial pressure of oxygen above 200 kPa to form free sulphuric acid, to solubilize copper and other metal in the feed as aqueous sulphate compounds and to precipitate arsenic as solid iron arsenic compounds. A treated slurry comprising a liquid phase containing sulphuric acid and copper sulphate, and solids containing the iron arsenic compounds is withdrawn and the liquid phase is separated from the solids. To lessen arsenic re-dissolution and to maintain stability of the solid iron arsenic compounds, one or more of temperature, free acid level and residence time of the treated slurry is controlled. Copper metal is recovered from the separated liquid phase.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: January 28, 2020
    Assignee: Sherritt International Corporation
    Inventors: Kelvin Richard Buban, Michael Joseph Collins, Preston Carl Holloway
  • Patent number: 10480049
    Abstract: A copper alloy having the following composition (in % by weight): from 10.6 to 18% of Al, from 10.5 to 14.5% of Ni, optionally up to 2% of Fe, optionally up to 1% of Co, optionally up to 0.5% of Ti, optionally up to 0.5% of Mn, optionally up to 0.15% of B, optionally up to 0.1% of Ca, and optionally up to 0.1% of C, with the balance being copper and unavoidable impurities. Nickel aluminides of the NiAl type are embedded as precipitates in the microstructure of the alloy.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: November 19, 2019
    Assignee: WIELAND-WERKE AG
    Inventors: Igor Altenberger, Hans-Achim Kuhn
  • Patent number: 10422024
    Abstract: A nickel-base superalloy consisting of, by weight: 14.6% to 15.9% cobalt; 11.5% to 13.0% chromium; 0.8% to 1.2% iron; 0.2% to 0.60% manganese; 2.00% to 2.40% molybdenum; 3.30% to 3.70% tungsten; 2.90% to 3.30% aluminum; 2.60% to 3.10% titanium; 3.50% to 5.10% tantalum; 1.20% to 1.80% niobium; 0.10% to 0.60% silicon; 0.02% to 0.06% carbon; 0.010% to 0.030% boron; 0.05% to 0.11% zirconium; up to 0.045% hafnium; and the balance being nickel and impurities.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: September 24, 2019
    Assignee: ROLLS-ROYCE plc
    Inventors: Mark C Hardy, Roger C Reed, David Crudden
  • Patent number: 10421899
    Abstract: A composite particle that includes: a fluorescent semiconductor core/shell nanoparticle (preferably, nanocrystal); and a thiol-substituted silicone ligand.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: September 24, 2019
    Inventor: Zai-Ming Qiu
  • Patent number: 10414973
    Abstract: An interlayer comprised of a thermoplastic resin, at least one luminescent pigment and a carboxylic acid additive. The use of a thermoplastic resin, at least one luminescent pigment and a carboxylic acid additive reduces or minimizes the optical defects (such as high color or yellowness and increased haze) caused by discoloration of the pigment without sacrificing other characteristics of the interlayer.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: September 17, 2019
    Assignee: Solutia Inc.
    Inventors: John J. D'Errico, Benjamin B. Thompson, Wenjie Chen
  • Patent number: 10400317
    Abstract: Fe—Cr—Ni—Mo alloy having superior surface properties and a method for producing the same using a commonly used apparatus at low cost. The Fe—Cr—Ni—Mo alloy has (% indicates mass %): C: ?0.03%, Si: 0.15 to 0.5%, Mn: 0.1 to 1%, P: ?0.03%, S: ?0.002%, Ni: 20 to 32%, Cr: 20 to 26%, Mo: 0.5 to 2.5%, Al: 0.1 to 0.5%, Ti: 0.1 to 0.5%, Mg: 0.0002 to 0.01%, Ca: 0.0002 to 0.01%, N: ?0.02%, O: 0.0001 to 0.01%, freely contained components of Co: 0.05 to 2% and Cu: 0.01 to 0.5%, Fe as a remainder, and inevitable impurities, wherein MgO, MgO.Al2O3 spinel type, and CaO—Al2O3—MgO type are contained as oxide type non-metallic inclusions, ratio of number of MgO.Al2O3 spinel type to all oxide type non-metallic inclusions is ?50%, and CaO—Al2O3—MgO type contains CaO: 30 to 70%, Al2O3: 5 to 60%, MgO: 1 to 30%, SiO2: ?8%, and TiO2: ?10%.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: September 3, 2019
    Inventors: Hidekazu Todoroki, Fumiaki Kirihara
  • Patent number: 10301543
    Abstract: Embodiments of the present disclosure provide for methods of making quantum dots (QDs) (passivated or unpassivated) using a continuous flow process, systems for making QDs using a continuous flow process, and the like. In one or more embodiments, the QDs produced using embodiments of the present disclosure can be used in solar photovoltaic cells, bio-imaging, IR emitters, or LEDs.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: May 28, 2019
    Inventors: Osman M. Bakr, Jun Pan, Ala'a El-Ballouli, Kristian Rahbek Knudsen, Ahmed L. Abdelhady
  • Patent number: 10287493
    Abstract: Embodiments of the invention relate to a composite film and a fabrication method thereof, a photoelectric element and a photoelectric apparatus. The fabrication method of the composite film includes: preparing a polyfluorene-based compound solution, wherein the polyfluorene-based compound solution includes polyfluorene or polyfluorene derivatives; preparing a quantum dot solution; mixing the polyfluorene-based compound solution and the quantum dot solution together to prepare a mixed solution; removing a solvent in the mixed solution to prepare the composite film.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: May 14, 2019
    Inventors: Jingxia Gu, Chen Tang
  • Patent number: 10280497
    Abstract: An aluminum bronze alloy containing 7.0-10.0% by weight Al; 3.0-6.0% by weight Fe; 3.0-5.0% by weight Zn; 3.0-5.0% by weight Ni; 0.5-1.5% by weight Sn; ?0.2% by weight Si; ?0.1% by weight Pb; and the remainder Cu in addition to unavoidable impurities. Also described is an aluminum bronze product having such an alloy composition, and a method for producing such a product from an aluminum bronze alloy.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: May 7, 2019
    Inventors: Hermann Gummert, Björn Reetz, Thomas Plett
  • Patent number: 10266919
    Abstract: A nickel-base superalloy that includes 6.55% to 7.15% aluminum, 3.3% to 3.7% titanium, 1.2% to 1.7% tantalum, and 0.8% to 1.0% niobium, such that a combined atomic percentage of the aluminum, the titanium, the tantalum and the niobium is between 12.65% and 13.15% to provide substantially 51% to 53% by volume of gamma prime precipitates.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: April 23, 2019
    Assignee: ROLLS-ROYCE plc
    Inventors: Mark C Hardy, Roger C Reed, David Crudden
  • Patent number: 10260132
    Abstract: In an embodiment, a magnetic body includes soft magnetic alloy grains 11 containing Fe, element L, and element M (where element L is Si or Zr and element M is a metal element other than Si or Zr that oxidizes more easily than Fe), as well as oxide film produced from oxidization of part of these grains 11; wherein at least some of the bonds between adjacent soft magnetic alloy grains 11 are by way of the oxide film; the oxide film has an inner film 12a, and an outer film 12b positioned on the outer side of the inner film 12a; and the inner film 12a contains more of element L than element M, while the outer film 12b contains more of element M than element L.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: April 16, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Minoru Ryu, Shinsuke Takeoka, Yoko Orimo, Yoshiki Iwazaki, Kenji Otake
  • Patent number: 10253256
    Abstract: The presently disclosed subject matter provides processes for preparing nanocrystals, including processes for preparing core-shell nanocrystals. The presently disclosed subject matter also provides sulfur and selenium compounds as precursors to nanostructured materials. The presently disclosed subject matter also provides nanocrystals having a particular particle size distribution.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: April 9, 2019
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Jonathan S. Owen, Mark P. Hendricks, Michael P. Campos
  • Patent number: 10230022
    Abstract: A lighting apparatus is presented. The lighting apparatus includes a semiconductor light source, a color stable Mn4+ doped phosphor and a quantum dot material, each of the color stable Mn4+ doped phosphor and the quantum dot material being radiationally coupled to the semiconductor light source. A percentage intensity loss of the color stable Mn4+ doped phosphor after exposure to a light flux of at least 20 w/cm2 at a temperature of at least 50 degrees Celsius for at least 21 hours is ?4%. A backlight device including the lighting apparatus is also presented.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: March 12, 2019
    Assignee: General Electric Company
    Inventors: Anant Achyut Setlur, James Edward Murphy, Florencio Garcia, Srinivas Prasad Sista
  • Patent number: 10221468
    Abstract: Additive manufacturing methods, and articles made using additive manufacturing methods, are described herein. One embodiment is an article that comprises a hafnium-bearing superalloy. The superalloy includes at least about 50 weight percent nickel, from about 0.015 weight percent to about 0.06 weight percent carbon, and up to about 0.8 weight percent hafnium. The article further includes a plurality of primary carbide phase particulates disposed within the superalloy; the plurality has a median size less than about 1 micrometer. A method includes melting and solidifying particulates of a metal powder feedstock to build an intermediate article comprising a series of layers of solidified material. The feedstock includes the above-described superalloy composition. The method further includes heating the intermediate article to a temperature of at least about 950 degrees Celsius to form a processed article.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: March 5, 2019
    Assignee: General Electric Company
    Inventors: Laura Cerully Dial, Srikanth Chandrudu Kottilingam
  • Patent number: 10204723
    Abstract: Core-shell particles containing crystalline iron oxide in the core and amorphous silicon dioxide in the shell and in which a) the shell contains from 5 to 40% by weight of silicon dioxide, b) the core contains b1) from 60 to 95% by weight of iron oxide and b2) from 0.5 to 5% by weight of at least one doping component selected from the group consisting of aluminum, calcium, copper, magnesium, silver, titanium, yttrium, zinc, tin and zirconium, c) where the % by weight indicated are based on the core-shell particles and the sum of a) and b) is at least 98% by weight of the core-shell particles, d) the core has lattice plane spacings of 0.20 nm, 0.25 nm and 0.29 nm, in each case+/?0.02 nm, determined by means of HR-TEM.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: February 12, 2019
    Assignee: EVONIK DEGUSSA GmbH
    Inventors: Stipan Katusic, Harald Alff, Peter Albers, Harald Herzog, Peter Kress
  • Patent number: 10195698
    Abstract: A lead-free, tin-based solder alloy contains about 0.6 to about 0.8 wt % copper, about 2.8 to about 3.2 wt % silver, about 2.8 to about 3.2 wt % bismuth, about 0.5 to about 0.7 wt % antimony, about 0.04 to about 0.07 wt % nickel, and about 0.007 to about 0.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: February 5, 2019
    Assignee: AIM Metals & Alloys Inc.
    Inventors: Mehran Maalekian, Karl Seelig
  • Patent number: 10144869
    Abstract: Provided are a blue phosphor and a method of easily producing the phosphor, the phosphor being excited at a wavelength of about 400 nm, which is an emission wavelength of a near-ultraviolet LED, to emit high-intensity light and having a small change of emission intensity due to a change of an excitation wavelength. The phosphor is silicate phosphor that is represented by a composition formula of Ba1?xEuxZrSiyO3+2y (where 0.001?x?5 and 2.5?y?3); has a diffraction pattern of BaZrSi3O9 as a powder x-ray diffraction pattern; has an emission intensity at an excitation wavelength of 400 nm, the emission intensity being 40% or higher of an emission intensity at an excitation wavelength of 300 nm; and has an emission intensity change ratio represented by (Iex380 nm?Iex420 nm)/Iex380 nm×100, emission intensity change ratio being 30% or lower in a range of excitation wavelengths of 380 nm to 420 nm.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: December 4, 2018
    Inventors: Komukai Tetsufumi, Takatsuka Yuji, Kakihana Masato, Tezuka Satoko, Kato Hideki
  • Patent number: 10144868
    Abstract: The present invention relates to a novel method for preparing a water-insoluble metal hydroxide, and a use thereof. The water-insoluble metal hydroxide of the present invention is conveniently and efficiently prepared s through the high-temperature heat treatment step two times and the washing step, and thus contains a small amount of an alkali metal and has a high crystallinity and a phase purity. The water-insoluble metal hydroxide of the present invention or metal oxide therefrom exhibits an absorption wavelength at a low wavelength range (for example, 490 nm or less) and a light emitting wavelength at a high wavelength range (for example, from 500 nm or more to less than 1,100 nm).
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: December 4, 2018
    Inventors: So Hye Cho, Seung Yong Lee, Khan Sovann, Jong Ku Park, Sun Jin Kim, Ho Seong Jang
  • Patent number: 10118834
    Abstract: Monodisperse colloidal nanocrystal clusters of magnetite (Fe3O4) with tunable sizes from about thirty to about three hundred nanometers have been synthesized using a high-temperature hydrolysis process. The colloidal nanocrystal clusters are capped with polyelectrolytes, and highly water soluble. Each cluster is composed of many single magnetite crystallites, thus retaining the superparamagnetic behavior at room temperature. The combination of superparamagnetic property, high magnetization, and high water dispersibility makes the colloidal nanocrystal clusters ideal candidates for various important biomedical applications such as drug delivery and bioseparation. The present invention is further directed to methods for forming colloidal photonic crystals from both aqueous and nonaqueous solutions of the superparamagnetic colloidal nanocrystal clusters with an external magnetic field applied thereto.
    Type: Grant
    Filed: April 26, 2008
    Date of Patent: November 6, 2018
    Inventors: Yadong Yin, Jianping Ge