Patents Examined by Noah S Wiese
  • Patent number: 10427984
    Abstract: Methods for fabricating a ceramic matrix composite are disclosed. A fiber preform may be placed in a mold. An aqueous solution may be added to the fiber preform. The aqueous solution may include water, carbon nanotubes, and a binder. The preform may be frozen. Freezing the preform may cause the water to expand and separate fibers in the fiber preform. The carbon nanotubes may bond to the fibers. The preform may be freeze dried to remove the water. The preform may then be processed according to standard CMC process.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: October 1, 2019
    Assignee: United Technologies Corporation
    Inventors: Paul Sheedy, David C. Jarmon
  • Patent number: 10422581
    Abstract: Setter plates are fabricated from Li-stuffed garnet materials having the same, or substantially similar, compositions as a garnet Li-stuffed solid electrolyte. The Li-stuffed garnet setter plates, set forth herein, reduce the evaporation of Li during a sintering treatment step and/or reduce the loss of Li caused by diffusion out of the sintering electrolyte. Li-stuffed garnet setter plates, set forth herein, maintain compositional control over the solid electrolyte during sintering when, upon heating, lithium is prone to diffuse out of the solid electrolyte.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: September 24, 2019
    Assignee: QuantumScape Corporation
    Inventors: Sriram Iyer, Tim Holme, Niall Donnelly
  • Patent number: 10414688
    Abstract: The invention relates to a method for the preparation of a glass ceramic or a glass, which comprise cerium ions and are suitable in particular for the preparation of dental restorations, the fluorescence properties of which largely correspond to those of natural teeth. The invention also relates to a glass ceramic and a glass which can be obtained using the method according to the invention, the use thereof as dental material and in particular for the preparation of dental restorations, as well as a glass-forming composition which is suitable for use in the method according to the invention.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: September 17, 2019
    Assignee: Ivoclat Vivadent AG
    Inventors: Markus Rampf, Sebastian Krolikowski, Christian Ritzberger, Wolfram Höland, Marcel Schweiger
  • Patent number: 10407341
    Abstract: The invention relates to a lithium silicate glass ceramic, which contains at least lithium disilicate as a crystal phase, and lithium aluminum silicate as further crystal phase. The lithium silicate glass ceramic in its initial composition contains Al2O3 at 1.5 to 3.5 percent by weight, and K2O at 0.6 to 1.8 percent by weight.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: September 10, 2019
    Assignee: DENTSPLY SIRONA Inc.
    Inventors: Markus Vollmann, Irmgard Wissel, Marcel Meegdes, Carsten Wiesner
  • Patent number: 10405953
    Abstract: Provided is a method for quickly producing a dental prosthesis with a good accuracy. The method for producing a dental prosthesis including: a melting step of melting a material including no less than 60.0 mass % and no more than 80.0 mass % of SiO2, no less than 10.0 mass % and no more than 20.0 mass % of Li2O, and no less than 5.1 mass % and no more than 10.0 mass % of Al2O3; a glass blank production step of cooling to solidify the molten material to obtain a glass blank; a lithium disilicate blank production step of heating the glass blank to obtain a lithium disilicate blank whose main crystalline phase is lithium disilicate; and a processing step of processing the lithium disilicate by machining.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: September 10, 2019
    Assignee: GC CORPORATION
    Inventors: Tomohiro Hoshino, Go Mashio, Tatsuya Fujimoto, Masatoshi Yoshinaga, Hayato Yokohara, Daisuke Ohta
  • Patent number: 10399906
    Abstract: A SiAlON sintered body according to the present invention is represented by Si6-zAlzOzN8-z (0<z?4.2) and has an open porosity of 0.1% or less and a relative density of 99.9% or more. A ratio of a total of intensities of maximum peaks of components other than SiAlON to an intensity of a maximum peak of the SiAlON in an X-ray diffraction diagram is 0.005 or less.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: September 3, 2019
    Assignee: NGK Insulators, Ltd.
    Inventors: Yuki Nomoto, Katsuhiro Inoue, Kei Tanaka, Yuji Katsuda
  • Patent number: 10399886
    Abstract: A method of making a glass-ceramic article includes synthesizing a feedstock gel that includes a base oxide network comprising Na2O, CaO, and SiO2, in which a molar ratio of Na2O:CaO:SiO2 in the gel is 1:2:3, and then converting the feedstock gel into a glass-ceramic article such as a container or a partially-formed container. The conversion of the feedstock gel into a glass-ceramic container may be performed at a temperature that does not exceed 900° C. and may include the steps of pressing the feedstock gel into a compressed solid green-body, sintering the green-body into a solid monolithic body of a glass-ceramic material, deforming the solid monolithic glass-ceramic body into a glass-ceramic preform, and cooling the preform. A glass-ceramic article having a glass-ceramic material that has a molar ratio of Na2O:CaO:SiO2 that is 1:2:3 is also disclosed.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: September 3, 2019
    Assignee: Owens-Brockway Glass Container Inc.
    Inventor: Scott P Cooper
  • Patent number: 10392293
    Abstract: The present invention provides a high-transparency glass having a high fining action at a low temperature and capable of achieving redox lowering more than before. The present invention relates to a glass containing 1 to 500 ppm of a total iron oxide (t-Fe2O3) in terms of Fe2O3, having a redox ([divalent iron (Fe2+) in terms of Fe2O3]/[total (Fe2++Fe3+) of divalent iron (Fe2+) and trivalent iron (Fe3+) in terms of Fe2O3]) of 0% or more and 25% or less, containing, as expressed by mass percentage based on oxides, 50 to 81% of SiO2, 1 to 20% of Al2O3, 0 to 5% of B2O3, 5 to 20% of Li2O+Na2O+K2O, and 5 to 27% of MgO+CaO+SrO+BaO, and having a bubble disappearance-starting temperature (TD) of 1485° C. or lower.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: August 27, 2019
    Assignee: AGC Inc.
    Inventors: Yusaku Matsuo, Yutaka Kuroiwa, Yusuke Arai, Hiroyuki Hijiya, Yuki Kondo
  • Patent number: 10392295
    Abstract: The present invention relates to a composite material, particularly a composite material for ceramic tiles, stone cladding, surface tops (e.g. worktops), and the like. The composite materials are typically derived from waste products. The composite materials of the present invention are formed from a glass component and a non-glass mineral component (e.g. ceramics and/or glaze). Generally the composite materials do not require any binders (especially synthetic binders) to hold the materials together. Therefore, the composite materials and products made therefrom are typically recyclable.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: August 27, 2019
    Assignee: Alusid Limited
    Inventors: Alasdair Bremner, David Stuart Binns
  • Patent number: 10384981
    Abstract: Methods for preparing ceramic matrix composites using melt infiltration and chemical vapor infiltration are provided as well as the resulting ceramic matrix composites. The methods and products include the incorporation of sacrificial fibers to provide improved infiltration of the fluid infiltrant. The sacrificial fibers are removed, such as decomposed during pyrolysis, resulting in the formation of regular and elongate channels throughout the ceramic matrix composite. Infiltration of the fluid infiltrant can then take place using the elongate channels resulting in improved density and an improved ceramic matrix composite product.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: August 20, 2019
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: David Bruce Hall, James Joseph Murray, Jason Robert Parolini, Michael Alan Vallance, Juan Borja, Daniel George Norton, Jared Hogg Weaver, Daniel Gene Dunn
  • Patent number: 10377661
    Abstract: Glass ceramics having SiO2 as main crystal phase and precursors thereof are described which are characterized by very good mechanical and optical properties and in particular can be used as restoration material in dentistry.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: August 13, 2019
    Assignee: Ivoclar Vivadent AG
    Inventors: Markus Rampf, Marc Dittmer, Christian Ritzberger, Marcel Schweiger, Wolfram Höland
  • Patent number: 10377671
    Abstract: Conventional sintering processes convert a portion of cBN to hBN which is softer than cBN which negatively affects functional properties of an alumina composite. The invention is directed to method for making an alumina-cubic boron nitride (Al2O3-cBN) composite that contains substantially no hexagonal boron nitride (hBN) by non-conventional spark plasma sintering of cBN with nano-sized alumina particles. The invention is also directed to Al2O3-cBN/Ni composites, which contain substantially no hBN, and which exhibit superior physical and mechanical properties compared to alumina composites containing higher amounts of hBN.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: August 13, 2019
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Abbas Saeed Hakeem, Tahar Laoui, Hafiz Muzammil Irshad, Bilal Anjum Ahmed, Muhammad Ali Ehsan
  • Patent number: 10370281
    Abstract: Provides is low scattering silica glass suitable as a material of an optical communication fiber. Silica glass has a fictive temperature of at least 1,000° C. and a void radius of at most 0.240 nm, as measured by positron annihilation lifetime spectroscopy. A method for heat-treating silica glass is also provided, which comprises holding silica glass to be heat-treated in an atmosphere at a temperature of at least 1,200° C. and at most 2,000° C. under a pressure of at least 30 MPa, and cooling the silica glass at an average temperature-decreasing rate of at least 40° C./min during cooling within a temperature range of from 1,200° C. to 900° C. A method for heat-treating silica glass also comprises holding silica glass to be heat-treated in an atmosphere at a temperature of at least 1,200° C. and at most 2,000° C. under a pressure of at least 140 MPa, and cooling the silica glass in an atmosphere under a pressure of at least 140 MPa during cooling within a temperature range of from 1,200° C. to 900° C.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: August 6, 2019
    Assignee: AGC Inc.
    Inventors: Madoka Ono, Setsuro Ito, Osamu Honma, Yousuke Amino
  • Patent number: 10370299
    Abstract: Disclosed are embodiments of synthetic garnet materials for use in radiofrequency applications. In some embodiments, increased amounts of bismuth can be added into specific sites in the crystal structure of the synthetic garnet in order to boost certain properties, such as the dielectric constant and magnetization. Accordingly, embodiments of the disclosed materials can be used in high frequency applications, such as in base station antennas.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: August 6, 2019
    Assignee: Skyworks Solutions, Inc.
    Inventors: David Bowie Cruickshank, Michael David Hill
  • Patent number: 10364804
    Abstract: Articles and methods in which an electric field is used to actuate a material are generally described. Provided in one embodiment is a method including applying an electric field to a ceramic material. Applying the electric field to the ceramic material can transform the ceramic material from a first solid phase to a second distinct solid phase. The applied electric field is less than a breakdown electric field of the ceramic material, according to certain embodiments.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: July 30, 2019
    Assignee: Massachusetts Institute of Technology
    Inventors: Christopher A. Schuh, Alan Lai
  • Patent number: 10364194
    Abstract: A method for preparing a ceramic-modified carbon-carbon composite material. The method includes preparing and thermally treating a carbon fiber preform, and depositing pyrolytic carbon on the carbon fiber preform in a chemical vapor infiltration furnace, to yield a porous carbon-carbon composite material; placing the carbon-carbon composite material deposited with the pyrolytic carbon on a zirconium-titanium powder mixture, and performing a reactive melt infiltration, to yield a carbon-carbon composite material modified by non-stoichiometric zirconium titanium carbide; and placing the carbon-carbon composite material modified by non-stoichiometric zirconium titanium carbide in a powder mixture including carbon, boron carbide, silicon carbide, silicon, and an infiltration enhancer, and performing an embedding method, to form a ceramic-modified carbon-carbon composite material.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: July 30, 2019
    Assignee: CENTRAL SOUTH UNIVERSITY
    Inventors: Yi Zeng, Xiang Xiong, Dini Wang, Wei Sun, Zhaoke Chen, Yalei Wang
  • Patent number: 10358380
    Abstract: Lithium silicate glass ceramics and glasses containing specific oxides of divalent elements are described which crystallize at low temperatures and are suitable in particular as dental materials.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: July 23, 2019
    Assignee: Ivoclar Vivadent AG
    Inventors: Christian Ritzberger, Elke Signer-Apel, Wolfram Höland, Volker Rheinberger
  • Patent number: 10351711
    Abstract: This is generally a method of producing dispersed high quality engineered composite structures using flat flakes of graphene/graphene oxides/reduced graphene oxides in a host as the reinforcing additive of the composite.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: July 16, 2019
    Inventors: Sean Christiansen, David Restrepo, Dan O'Donnell, Matthew McInnis, Richard Stoltz, Jeff Bullington
  • Patent number: 10336645
    Abstract: A method for producing rare earth metal-doped quartz glass includes the steps of (a) providing a blank of the rare earth metal-doped quartz glass, and (b) homogenizing the blank by softening the blank zone by zone in a heating zone and by twisting the softened zone along a rotation axis. Some rare earth metals, however, show a discoloration of the quartz glass, which hints at an unforeseeable and undesired change in the chemical composition or possibly at an inhomogeneous distribution of the dopants. To avoid this drawback and to provide a modified method which ensures the production of rare earth metal-doped quartz glass with reproducible properties, during homogenization according to method step (b), the blank is softened under the action of an oxidizingly acting or a neutral plasma.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: July 2, 2019
    Assignee: Heraeus Quarzglas GmbH & Co., KG
    Inventors: Hardy Baierl, Stephan Grimm, Kay Schuster, Jan Dellith, Andreas Langner, Gerhard Schoetz, Walter Lehmann, Thomas Kayser
  • Patent number: 10329199
    Abstract: The embodiments of the present invention disclose a method for synthesizing ceramic composite powder and ceramic composite powder, pertaining to the technical field of inorganic non-metallic materials. Among them, the method includes preparing an aqueous slurry of ceramic raw materials, the aqueous slurry including ceramic raw material, water and low polymerization degree organometallic copolymer, the ceramic raw material including at least two components; adding a crosslinking coagulant into the aqueous slurry to obtain a gel; dehydrating and drying the gel to obtain the dried gel; heating the dried gel to the synthesizing temperature of the ceramic composite powder and conducting the heat preservation to obtain ceramic composite powder or ceramic composite base powder; conducting secondary doping on ceramic composite base powder to obtain the ceramic composite powder.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: June 25, 2019
    Assignee: XIANGTAN QUFO TECHNOLOGY MATERIAL CO., LTD
    Inventors: Daming Chen, Xiaoping Ouyang, Yongli Zhang