Patents Examined by Karl E. Group
  • Patent number: 10807906
    Abstract: A glass-ceramic includes a silicate-containing glass and crystals within the silicate-containing glass. The crystals include non-stoichiometric tungsten and/or molybdenum sub-oxides, and the crystals are intercalated with dopant cations.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: October 20, 2020
    Assignee: Corning Incorporated
    Inventors: Matthew John Dejneka, Jesse Kohl
  • Patent number: 10800707
    Abstract: Provided are a magnesia carbon brick which does not include graphite yet has excellent spalling and corrosion resistances, and a method for producing thereof. The brick is obtained by adding an organic binder to a refractory raw material mixture followed by kneading, molding, and heat-treating, wherein the mixture includes total 0.1 to 2.0 mass % of pitch and/or carbon black, total 0.1 to 1.0 mass % of aluminum and/or aluminum alloy, 3.0 to 10.0 mass % of magnesia having particle diameter of less than 0.075 mm, and 87.0 to 96.0 mass % of magnesia having particle diameter of 0.075 to 5 mm; and a mass ratio of magnesia having particle diameter of 1 to 5 mm to that of 0.075 to 1 mm is 1.66 to 2.34; graphite is not included therein; and an apparent porosity thereof after heat-treatment under reductive atmosphere at 1400° C. for 3 hours is 8.0% or less.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: October 13, 2020
    Assignees: KROSAKIHARIMA CORPORATION, NIPPON STEEL CORPORATION
    Inventors: Yuya Tomita, Masato Tanaka, Shigeto Sawai
  • Patent number: 10793465
    Abstract: A base material for a disk roll containing a layered silicate, in which the layered silicate is constituted to contain two or more kinds of minerals having an interlayer distance exceeding 10 angstroms. A base material for a disk roll is excellent in the compressive strength and wear resistance thereby.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: October 6, 2020
    Assignee: NICHIAS CORPORATION
    Inventors: Ryo Tanaka, Shigeru Nakama, Kazuhisa Watanabe
  • Patent number: 10793467
    Abstract: Disclosed is a sealing glass composition that turns, when fired at a temperature of 900-1150° C., into a crystallized glass having a thermal expansion coefficient of 80-110×10?7/° C. in the range of 50-850° C. The composition is substantially free of both boron oxide and barium oxide, and comprises SiO2: 43-53 mol %, CaO: 12-33 mol %, MgO: 12-33 mol %, La2O3: 1-7 mol %, and ZnO: 0-4.5 mol %.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: October 6, 2020
    Assignee: NIHON YAMAMURA GLASS CO., LTD.
    Inventor: Kozo Maeda
  • Patent number: 10793474
    Abstract: A ceramic composition which can be used as a sintering aid includes 1-2 mol % of magnesium oxide (MgO), 5-15 mol % of aluminum oxide (Al2O3), 25-40 mol % of silicon dioxide (SiO2), 40-55 mol % of calcium oxide (CaO), 0.1-8 mol % of ferric oxide (Fe2O3), 0.1-2 mol % of sulfur trioxide (SO3) and 0.1-2 mol % of titanium oxide (TiO2). Alternatively, the ceramic composition includes 1-8 mol % of MgO, 5-15 mol % of Al2O3, 25-40 mol % of SiO2, 40-55 mol % of CaO, 0.1-8 mol % of Fe2O3, 0.1-2 mol % of SO3 and 0.9-2 mol % of TiO2.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: October 6, 2020
    Assignee: NATIONAL PINGTUNG UNIVERSITY OF SCIENCE & TECHNOLOGY
    Inventor: Ying-Chieh Lee
  • Patent number: 10787392
    Abstract: An aluminum nitride sintered compact containing aluminum nitride crystal grains and composite oxide crystal grains containing a rare earth element and an aluminum element, wherein a median diameter of the aluminum nitride crystal grains is 2 ?m or less; 10 to 200 intergrain voids having a longest diameter of 0.2 to 1 ?m are dispersed in a region of a cross section of 100 ?m in square; and the carbon atom content is less than 0.10% by mass. Also disclosed is a method of producing the aluminum nitride sintered compact.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: September 29, 2020
    Assignee: SHOWA DENKO K.K.
    Inventors: Daisuke Miyamoto, Kosuke Shioi
  • Patent number: 10781131
    Abstract: Crystallizable glasses, glass-ceramics, IXable glass-ceramics, and IX glass-ceramics are disclosed. The glass-ceramics exhibit ?-spodumene ss as the predominant crystalline phase. These glasses and glass-ceramics, in mole %, include: 60-75 SiO2; 10-18 Al2O3; 5-14 Li2O; and 4.5 B2O3. The glass-ceramics also have a Vickers initiation crack threshold of at least about 25 kgf.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: September 22, 2020
    Assignee: CORNING INCORPORATED
    Inventors: George Halsey Beall, Qiang Fu, Charlene Marie Smith, Randall Eugene Youngman
  • Patent number: 10777355
    Abstract: [Object] provide a dielectric composition with high voltage resistance and favorable reliability, and an electronic component using the dielectric composition. [Solving Means] A dielectric composition contains, as a main component, a tungsten bronze type composite oxide represented by a chemical formula (Sr1.00?s?tBasCat)6.00?xRx(Ti1.00?aZra)x+2.00(Nb1.00?bTab)8.00?xO30.00, in which the R is at least one element selected from Y, La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu, and s, t, x, a, and b satisfy 0.70?s?1.00, 0?t?0.30, 0.70?s+t?1.00, 0?x?0.50, 0.10?a?1.00, and 0?h?1.00. At least one or more elements selected from Mn, Mg, Co, V, W, Mo, Si, Li, B, and Al are contained as a sub component in 0.10 mol or more and 20.00 mol or less with respect to 100 mol of the main component.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: September 15, 2020
    Assignee: TDK CORPORATION
    Inventors: Sanshiro Aman, Hiroki Akiba, Keiko Takeuchi
  • Patent number: 10777354
    Abstract: A dielectric composition with high voltage resistance and favorable reliability, and an electronic component using the dielectric composition. The dielectric composition contains, as a main component, a tungsten bronze type composite oxide represented by a chemical formula (Sr1.00?s?tBasCat)6.00?xRx(Ti1.00?aZra)x+2.00(Nb1.00?bTab)8.00?xO30.00 in which the R is at least one element selected from Y, La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu, and s, t, x, a, and b satisfy 0.50?s?1.00, 0?t?0.50, 0.50?s+t?1.00, 0.50<x?1.50, 0.30?a?1.00, and 0?b?1.00. At least one or more elements selected from Mn, Mg, Co, V, W, Mo, Si, Li, B, and Al are contained as a sub component in 0.10 mol or more and 20.00 mol or less with respect to 100 mol of the main component.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: September 15, 2020
    Assignee: TDK CORPORATION
    Inventors: Sanshiro Aman, Hiroki Akiba, Keiko Takeuchi
  • Patent number: 10774007
    Abstract: A densified ceramic matrix composite (CMC) material densified CMC exhibits superior strength and toughness, relative to prior CMCs The material can be made by a process that includes impregnating a set of ceramic fibers with a non-fibrous ceramic material, resulting in a precursor matrix, stabilizing the precursor matrix, resulting in a stabilized matrix, and densifying the stabilized matrix using a frequency assisted sintering technology (FAST) process, resulting in the densified CMC material.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: September 15, 2020
    Inventor: Edward J. A. Pope
  • Patent number: 10766820
    Abstract: The durability of a ceramic sintered body is improved, and a reduction in its light emission intensity and the occurrence of a chromaticity variation are suppressed. The ceramic sintered body contains alumina and a compound represented by M13-XM2XM35O12. The volume percent of the compound in the ceramic sintered body is from 3% to 70% inclusive. The ratio of the intensity of XRD from a complex oxide of aluminum and M2 to the intensity of XRD from the compound in the ceramic sintered body is less than 0.05. The average grain diameter of the alumina contained in the ceramic sintered body is from 0.30 (?m) to 3.00 (?m) inclusive. M1 is at least one selected from Sc, Y, and lanthanoid elements, and M2 is at least one selected from lanthanoid elements except any lanthanoid element selected for M1. M3 is at least one of Al and Ga, and X is from 0.003 to 0.500 inclusive.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: September 8, 2020
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Jun Moteki, Yusuke Katsu, Takeshi Mitsuoka
  • Patent number: 10765496
    Abstract: The invention relates to glass-ceramics based on the lithium silicate system which can be mechanically machined easily in an intermediate step of crystallisation and, after complete crystallisation, represent a very strong, highly-translucent and chemically-stable glass-ceramic. Likewise, the invention relates to a method for the production of these glass-ceramics. The glass-ceramics according to the invention are used as dental material.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: September 8, 2020
    Assignees: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V., VITA ZAHNFABRIK H. RAUTER GMBH & CO. KG, DEGUNDENT GMBH
    Inventors: Bernhard Durschang, Jörn Probst, Norbert Thiel, Joachim Bibus, Markus Vollmann, Udo Schusser
  • Patent number: 10766822
    Abstract: Provided is a thermal spray material that can form a compact thermal sprayed coating having an enhanced plasma erosion resistance. The herein disclosed art provides a thermal spray material that contains a rare earth element (RE), oxygen (O), and a halogen element (X) as constituent elements and that contains a mixed crystal of a rare earth element oxyhalide (RE-O—X) and a rare earth element halide (REX3).
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: September 8, 2020
    Assignees: TOKYO ELECTRON LIMITED, FUJIMI INCORPORATED
    Inventors: Nobuyuki Nagayama, Hiroyuki Ibe, Takaya Masuda
  • Patent number: 10766783
    Abstract: Provided is a magnesium oxide-containing spinel powder capable of producing a ceramic sintered body having high strength and excellent strength stability. In the magnesium oxide-containing spinel powder, a 50% particle diameter (D50) is 0.30 to 10.00 ?m, a ratio (D90-D50)/(D50-D10) of a difference between a 90% particle diameter (D90) and the 50% particle diameter (D50) and a difference between the 50% particle diameter (D50) and a 10% particle diameter (D10) is 1.0 to 5.0, and a composition ratio of Mg and Al in terms of an oxide equivalent content is 50 to 90% by weight of MgO and 10 to 50% by weight of Al2O3.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: September 8, 2020
    Assignee: TATEHO CHEMICAL INDUSTRIES CO., LTD.
    Inventors: Tomoaki Chikazawa, Akinori Saito, Yoshihisa Ohsaki
  • Patent number: 10759709
    Abstract: A dielectric composition with high voltage resistance and favorable reliability, and an electronic component using the dielectric composition. The dielectric composition contains, as a main component, a tungsten bronze type composite oxide represented by a chemical formula (Sr1.00-(s+t)BasCat)6.00-xRx(Ti1.00-aZra)x+2.00(Nb1.00-bTab)8.00-xO30.00, in which the R is at least one element selected from Y, La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu, and s, t, x, a, and b satisfy 0.50?s?1.00, 0?t?0.30, 0.50?s+t?1.00, 1.50<x?3.00, 0.20?a?1.00, and 0?b?1.00. At least one selected from Mn, Mg, Co, V, W, Mo, Si, Li, B, and Al is contained as a sub component in 0.10 mol or more and 20.00 mol or less with respect to 100 mol of the main component.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: September 1, 2020
    Assignee: TDK CORPORATION
    Inventors: Hiroki Akiba, Sanshiro Aman, Keiko Takeuchi
  • Patent number: 10759708
    Abstract: Provided is a high-light transmittance zirconia sintered body, prepared by processing and forming a material for the high-light transmittance zirconia sintered body, and then performing high-temperature sintering in the atmosphere under normal pressure. The material for a high-light transmittance zirconia sintered body is prepared from zirconia powder and ?-aluminum oxide as raw materials, wherein the molar percentage of yttrium oxide in the zirconia powder is 4-6%. The high-light transmittance zirconia sintered body can be used for preparing a fixed dental prosthesis. The zirconia sintered body has a grain size of 0.1-0.7 ?m, and due to the dispersion and toughening by aluminum oxide, the zirconia sintered body has a higher strength and toughness. Pores in the zirconia powder can be eliminated by adding aluminum oxide. The zirconia sintered body has a higher light transmittance, and the prepared dentures are good in texture, good in jade-like appearance, and closer to the human teeth.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: September 1, 2020
    Assignee: Shandong Sinocera Functional Material Co., Ltd
    Inventors: Aimin Yang, Xuekui Mo, Xibin Song
  • Patent number: 10759705
    Abstract: A dielectric composition has barium, strontium, and bismuth calcium titanates constituting a main component and subcomponent. “a” mol % represents a content of barium titanate in terms of BaTiO3, “b” mol % strontium titanate in terms of SrTiO3, and “c” mol % bismuth calcium titanate in terms of CaBi4Ti4O15 in the main component composition. a+b+c=100 is satisfied, 50?a?83, 12?b?49.5, 0.5?c?5. The dielectric composition includes a first subcomponent constituted by at least one compound including one of manganese, iron, and chromium. The first subcomponent is included in a ratio of 0.2 wt % or more and 3 wt % or less in terms of total of MnCO3, Fe2O3, and Cr2O3 with respect to 100 wt % of the main component. The dielectric composition includes a second subcomponent compound including niobium, included in a ratio of 0.1 wt % or more and 3 wt % or less in terms of Nb2O5 with respect to 100 wt % of the main component.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: September 1, 2020
    Assignee: TDK CORPORATION
    Inventors: Liu Hailong, Liang Liping, Daisuke Ohtsu
  • Patent number: 10759712
    Abstract: A material powder for additive modeling including a nitride, and a eutectic oxide, the nitride having an average density lower than an average density of the eutectic oxide, is used to produce a structure using an additive modeling method.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: September 1, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Nobuhiro Yasui, Hisato Yabuta, Kanako Oshima
  • Patent number: 10752552
    Abstract: A dielectric composition having a high temperature property, good specific permittivity and AC breakdown voltage, and low dielectric loss at normal temperature, even though lead is not substantially used. The dielectric composition includes barium titanate, strontium titanate, and bismuth calcium titanate constituting a main component and a subcomponent. The dielectric composition includes a first subcomponent constituted by at least one selected from a compound including manganese, a compound including iron, and a compound including chromium, and the first sub component is included in a ratio of 0.02 to 0.19 wt % in terms of total of MnCo3, Fe2O3, and Cr2O3 with respect to 100 wt % of the main component, and the dielectric composition includes a second subcomponent which is a compound including niobium, and the second subcomponent is included in a ratio of 0.1 to 3 wt % in terms of Nb2O5 with respect to 100 wt % of the main component.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: August 25, 2020
    Assignee: TDK CORPORATION
    Inventors: Liang Liping, Liu Hailong, Daisuke Ohtsu
  • Patent number: 10745316
    Abstract: A glass for sealing of the present invention includes as a glass composition, in terms of mol %, 60% to 80% of SiO2, 8% to 5.8% of B2O3, 12% to 18.7% or Li2O+Na2O+K2O, and 2% to 12% of MgO+CaO+SrO+BaO, and has a molar ratio SiO2/B2O3 of 14 or more.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: August 18, 2020
    Assignee: NIPPON ELECTRIC GLASS CO., LTD.
    Inventor: Masayuki Hirose