Patents Examined by Karl Group
  • Patent number: 9928959
    Abstract: A dielectric ceramic composition and a multilayer ceramic capacitor containing the same are provided. The dielectric ceramic composition contains a base material powder represented by (1?x)BaTiO3?xPbTiO3 containing a first main ingredient represented by BaTiO3 and a second main ingredient represented by PbTiO3, wherein x satisfies 0.0025?x?0.4. The multilayer ceramic capacitor includes a ceramic body in which dielectric layers containing the dielectric ceramic composition are alternately stacked with first and second internal electrodes, and first and second external electrodes formed on both end portions of the ceramic body and respectively electrically connected to the first and second internal electrodes.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: March 27, 2018
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Seok Hyun Yoon, Sung Kwon Wi, Jung Deok Park, Jung Wook Seo, Chan Hee Nam, Dong Hun Kim
  • Patent number: 9919953
    Abstract: A down-drawable glass ceramic. The glass ceramic has a composition which yields a liquidus viscosity that enables formation of the parent glass by down-draw techniques such as fusion-draw and slot-draw methods. The resulting glass ceramic is white or translucent in appearance with high strength achieved through heat treatment of the fusion-formed glass.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: March 20, 2018
    Assignee: CORNING INCORPORATED
    Inventors: George Halsey Beall, Heather Debra Boek, Alexandre Michel Mayolet, Mark Owen Weller
  • Patent number: 9919970
    Abstract: Dielectric layers are prepared using a dielectric material that contains a ceramic powder having Ba, Ti, and additive element X which is solid-solubilized and is at least one element selected from the group consisting of Mo, Ta, Nb, and W, wherein the standard deviation of the ratio of the peak intensity of the additive element X (XK?) measured by STEM-EDX, and the sum of the peak intensity of the Ti and peak intensity of the Ba (BaL?+TiK?) measured by STEM-EDX, is less than 10.5% of the average ratio as measured at a total of five points including the three points that divide the maximum diameter of one grain of the ceramic powder into four equal parts, and two excluding the center point of the three points that divide the diameter crossing at right angles with the maximum diameter at its center point, into four equal parts.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: March 20, 2018
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Kunihiko Nagaoka, Kazumichi Hiroi, Minoru Ryu, Chie Kawamura
  • Patent number: 9911536
    Abstract: The aim of the present invention lies in providing a dielectric composition which has a relatively high dielectric constant of 800 or greater, and which has relatively low dielectric loss of 4% or less when a DC bias of at least 8 V/ym is applied, and also in providing a dielectric element employing said dielectric composition, an electronic component, and a laminated electronic component. A dielectric composition having a main component represented by (BiaNabSrcBad) (?xTi1?x)O3, characterized in that a is at least one selected from Zr and Sn; and a, b, c, d and x satisfy the following: 0.140?a<0.390, 0.140?b<0.390, 0.200?c<0.700, 0.020?d<0.240, 0.020?x<0.240 and 0.950<a+b+c+d?1.050.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: March 6, 2018
    Assignee: EPCOS AG
    Inventors: Masakazu Hirose, Tomoya Imura, Goushi Tauchi
  • Patent number: 9902654
    Abstract: A ZrO2—Al2O3-based ceramic sintered compact containing tetragonal ZrO2 particles having a crystallite size of from 5 to 20 nm as a main component and having an ?-Al2O3 crystallite size of not greater than 75 nm and a relative density of not less than 99% can be produced by preparing a Y2O3 partially stabilized ZrO2—Al2O3-based powder having a molar ratio (mol %) of zirconia (ZrO2) and yttria (Y2O3) of from 96.5:3.5 to 97.5:2.5 and a mass ratio (mass %) of ZrO2 containing Y2O3 and alumina (Al2O3) of from 85:15 to 75:25, molding this powder by cold isostatic pressing, and then performing sintering to a high density by microwave sintering for 45 to 90 min in an inert gas atmosphere at 1200 to 1400° C. When performing microwave sintering, a heating rate is preferably from 5 to 20° C./min up to 600° C. and from 50 to 150° C./min at 600° C. or higher.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: February 27, 2018
    Assignees: THE DOSHISHA, DAIICHI KIGENSO KAGAKU KOGYO CO., LTD.
    Inventors: Ken Hirota, Xiaoteng Ge, Hideo Kimura
  • Patent number: 9902653
    Abstract: A refractory object can include at least approximately 10 wt % Al2O3 and at least approximately 1 wt % SiO2. In an embodiment, the refractory object can include an additive. In a particular embodiment, the additive can include TiO2, Y2O3, SrO, BaO, CaO, Ta2O5, Fe2O3, ZnO, or MgO. The refractory object can include at least approximately 3 wt % of the additive. In an additional embodiment, the refractory object can include no greater than approximately 8 wt % of the additive. In a further embodiment, the creep rate of the refractory object can be at least approximately 1×10?6 h?1. In another embodiment, the creep rate of the refractory object can be no greater than approximately 5×10?5 h?1. In an illustrative embodiment, the refractory object can include a glass overflow trough or a forming block.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: February 27, 2018
    Assignee: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventors: Olivier Citti, Julien P. Fourcade, Andrea L. Kazmierczak
  • Patent number: 9896383
    Abstract: A high zirconia electrically fused cast refractory having long time durability with less cracking during production and in the course of temperature rising, excellent in productivity, less forming zircon crystals in the refractory itself and even in contact with molten glass, excellent in bubble foamability to molten glass, less generating cracks even undergoing heat cycles during operation of a glass melting furnace. A high zirconia electrically fused cast refractory comprises, as chemical component, 85 to 95% by weight of ZrO2, 0.4 to 2.5% by weight of Al2O3, 3.5 to 10.0% by weight of SiO2, 0.05% by weight or more of Na2O, 0.05 to 0.7% by weight of Na2O and K2O in total, 0.01 to 0.04% by weight of B2O3, 0.1 to 3.0% by weight of SrO or BaO when one of BaO and SrO is contained, 0.1% by weight or more of SrO and 0.1 to 3.0% by weight of SrO and BaO in total when both of BaO and SrO are contained, 0.01 to 0.2% by weight of CaO, 0.1% by weight or less of MgO, 0.01 to 0.7% by weight of SnO2, 0.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: February 20, 2018
    Assignee: Saint-Gobain TM K.K.
    Inventors: Hiroshi Sugiyama, Toshimitsu Kuboki, Itaru Hashimoto, Yasuo Misu
  • Patent number: 9890086
    Abstract: A plasma resistant ceramic article comprises a plasma resistant ceramic material comprising 60-80 mol % of Y2O3, above 0 mol % to 9 mol % of ZrO2, and 20-40 mol % of Al2O3.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: February 13, 2018
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Jennifer Y. Sun, Biraja P. Kanungo
  • Patent number: 9885100
    Abstract: The invention describes a method for producing ternary and binary ceramic powders and their thermal spraying capable of manufacturing thermal sprayed coatings with superior properties. Powder contain at least 30% by weight ternary ceramic, at least 20% by weight binary molybdenum borides, at least one of the binary borides of Cr, Fe, Ni, W and Co and a maximum of 10% by weight of nano and submicro-sized boron nitride. The primary crystal phase of the manufactured thermal sprayed coatings from these powders is a ternary ceramic, while the secondary phases are binary ceramics. The coatings have extremely high resistance against corrosion of molten metal, extremely thermal shock resistance and superior tribological properties at low and at high temperatures.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: February 6, 2018
    Assignee: MESOCOAT, INC.
    Inventors: Evelina Vogli, Andrew J. Sherman, Curtis P. Glasgow
  • Patent number: 9884983
    Abstract: The heat storage material of the present invention is a heat storage material comprising a substance that induces an electronic phase transition, wherein the electronic phase transition is a phase transition of multiple degrees (associated) with freedom including a spin degree of freedom and an orbital degree of freedom, which are internal degrees of freedom of electrons, and the substance is V(1?x)CrxO2 (0<X?0.23).
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: February 6, 2018
    Assignee: RIKEN
    Inventors: Seiji Niitaka, Hidenori Takagi, Kimitoshi Kono
  • Patent number: 9884787
    Abstract: An article comprises a plasma resistant ceramic material comprising 40 mol % to less than 100 mol % of Y2O3, above 0 mol % to 60 mol % of ZrO2, and above 0 mol % to 5 mol % of Al2O3.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: February 6, 2018
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Jennifer Y. Sun, Biraja P. Kanungo
  • Patent number: 9878940
    Abstract: Embodiments of the present disclosure pertain to crystallizable glasses and glass-ceramics that exhibit a black color and are opaque. In one or more embodiments, the crystallizable glasses and glass-ceramics include a precursor glass composition that exhibits a liquidus viscosity of greater than about 20 kPa*s. The glass-ceramics exhibit less than about 20 wt % of one or more crystalline phases, which can include a plurality of crystallites in the Fe2O3—TiO2—MgO system and an area fraction of less than about 15%. Exemplary compositions used in the crystallizable glasses and glass-ceramics include, in mol %, SiO2 in the range from about 50 to about 76, Al2O3 in the range from about 4 to about 25, P2O5+B2O3 in the range from about 0 to about 14, R2O in the range from about 2 to about 20, one or more nucleating agents in the range from about 0 to about 5, and RO in the range from about 0 to about 20.
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: January 30, 2018
    Assignee: CORNING INCORPORATED
    Inventors: David Eugene Baker, Matthew John Dejneka, Indrajit Dutta, Robert Michael Morena, Charlene Marie Smith
  • Patent number: 9878944
    Abstract: The present invention relates to glass-ceramic compositions, as well as methods for forming such composition. In particular, the compositions include various polymorphs of silica that provide beneficial thermal expansion characteristics (e.g., a near linear thermal strain). Also described are methods of forming such compositions, as well as connectors including hermetic seals containing such compositions.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: January 30, 2018
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Steve Xunhu Dai, Mark A. Rodriguez, Nathanael L. Lyon
  • Patent number: 9868672
    Abstract: The present disclosure provides a ceramic material containing a vanadium oxide, and 50 to 400 ppm by mass of nitrogen with respect to the vanadium oxide. The ceramic material according to the present disclosure less varies in the amount of heat absorption. A cooling device comprising the ceramic material is also provided.
    Type: Grant
    Filed: January 16, 2017
    Date of Patent: January 16, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Sakyo Hirose
  • Patent number: 9862646
    Abstract: A dielectric composition containing a complex oxide represented by the formula of A?B?C2?O?+?+5? as the main component, wherein A represents Ba, B represents at least one element selected from the group consisting of Ca and Sr, C represents at least one element selected from the group consisting of Ta and Nb, and ?, ? and ? meet the following conditions, i.e., ?+?+?=1.000, 0.000<??0.375, 0.625??<1.000, 0.000???0.375.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: January 9, 2018
    Assignee: TDK CORPORATION
    Inventors: Shohei Fujii, Raitarou Masaoka, Hiroki Uchiyama, Maiko Shirokawa
  • Patent number: 9856175
    Abstract: A sintered compact according to the present invention includes: a first material that is cubic boron nitride; a second material that is an oxide of zirconium; and a third material that is an oxide of aluminum, the second material including cubic ZrO2 and ZrO, the third material including ?-Al2O3, and the sintered compact satisfying the following relation: 0.9?Izro2(111)/Ial(110)?30; and 0.3?Izro(111)/Ial(110)?3, where Ial(110), Izro2(111), and Izro(111) respectively represent X-ray diffraction intensities of a (110) plane of the ?-Al2O3, a (111) plane of the cubic ZrO2, and a (111) plane of the ZrO.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: January 2, 2018
    Assignees: SUMITOMO ELECTRIC HARDMETAL CORP., Sumitomo Electric Industries, Ltd.
    Inventors: Katsumi Okamura, Mayu Danda, Satoru Kukino
  • Patent number: 9856165
    Abstract: A leucite glass-ceramic is prepared from a glass comprising: about 66.8 to about 71.9 mol % of SiO2, about 8.5 to about 10.6 mol % of Al2O3, about 9.5 to about 12.8 mol % of K2O, about 0.5 to about 4.0 mol % of CaO, about 0 to about 3.0 mol % of TiO2, about 1.8 to about 4.0 mol % of Na2O, about 0.1 to about 6.0 mol % of Li2O, about 0 to about 1.0 mol % of MgO, about 0 to about 3.0 mol % of Nb2O5, and about 0 to about 3.0 mol % of B2O3. The leucite glass-ceramic is prepared by subjecting the glass components to a nucleation heat treatment, followed by a growth heat treatment. The leucite glass-ceramic may be used in the fabrication of a Dental restoration using various processes, and may be used in the construction of Dental restorations such as ceramic Dental inlays, crowns, veneers, bridges, veneering materials for zirconium oxide restoration substrates, alumina oxide restoration substrates, or metal restoration substrates.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: January 2, 2018
    Assignee: Queen Mary and Westfield College University of London
    Inventors: Antonios Theocharopoulos, Xiaohui Chen, Natalia Karpukhina, Robert Hill, Mike Cattell
  • Patent number: 9850163
    Abstract: The present disclosure relates to fusion formable highly crystalline glass-ceramic articles whose composition lies within the SiO2—R2O3—Li2O/Na2O—TiO2 system and which contain a silicate crystalline phase comprised of lithium aluminosilicate (?-spodumene and/or ?-quartz solid solution) lithium metasilicate and/or lithium disilicate. Additionally, these silicate-crystal containing glass-ceramics can exhibit varying Na2O to Li2O molar ratio extending from the surface to the bulk of the glass article, particularly a decreasing Li2O concentration and an increasing Na2O concentration from surface to bulk. According to a second embodiment, disclosed herein is a method for forming a silicate crystalline phase-containing glass ceramic.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: December 26, 2017
    Assignee: CORNING INCORPORATED
    Inventors: George Halsey Beall, Nicholas Francis Borrelli, Charlene Marie Smith, Steven Alvin Tietje
  • Patent number: 9852848
    Abstract: Multilayer ceramic chip capacitors which satisfy COG requirements and which are compatible with reducing atmosphere sintering conditions so that non-noble metals such as nickel and nickel alloys thereof may be used for internal and external electrodes are made in accordance with the invention. The capacitors exhibit desirable dielectric properties (high capacitance, low dissipation factor, high insulation resistance), excellent performance on highly accelerated life testing, and very good resistance to dielectric breakdown. The dielectric layers comprise a barium strontium zirconate matrix doped with other metal oxides such as TiO2, CaO, B2O3, and MgO in various combinations.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: December 26, 2017
    Assignee: Ferro Corporation
    Inventor: Walter J. Symes, Jr.
  • Patent number: 9845266
    Abstract: A fused grain is essentially composed of a matrix of a magnesium aluminum oxide of spinel structure MgAl2O4 and/or of the MgO—MgAl2O4 eutectic, the matrix including inclusions essentially composed of magnesium oxide, the grain exhibiting the following overall chemical composition, as percentages by weight, expressed in the form of oxides: more than 20.0% and less than 50.0% of Al2O3, Al2O3 and MgO together represent more than 95.0% of the weight of the grain, wherein the cumulative content of CaO and ZrO2 is less than 4000 ppm by weight.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: December 19, 2017
    Assignee: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN
    Inventor: Stéphane Raffy