Patents Examined by Sally Merkling
  • Patent number: 11946113
    Abstract: A method for producing a grain oriented electrical steel sheet includes a decarburization annealing process where an oxidation degree PH2O/PH2 is controlled, an annealing separator applying process where a mass ratio of MgO and Al2O3 in an annealing separator is controlled, a final annealing process where hydrogen in mixed gas atmosphere is controlled to 50 volume % or more, an annealing separator removing process where water-washing is conducted using solution with inhibitor, a smoothing process where chemical-polished is conducted to control average roughness Ra, and an insulation coating forming process where insulation coating forming solution in which crystalline phosphide is included is applied.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: April 2, 2024
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Shinsuke Takatani, Yoshiyuki Ushigami
  • Patent number: 11945033
    Abstract: A method is provided for the heat treatment of an object comprising at least one rare-earth element with a high vapor pressure. One or more objects comprising at least one rare-earth element with a high vapor pressure are arranged in an interior of a package. An external source of the at least one rare-earth element is arranged so as to compensate for the evaporation of this same rare-earth element from the object and/or to increase the vapor pressure of the rare-earth element in the interior of the package, and the package is heat treated.
    Type: Grant
    Filed: March 31, 2022
    Date of Patent: April 2, 2024
    Assignee: VACUUMSCHMELZE GMBH & CO. KG
    Inventors: Kaan Üstüner, Matthias Katter, Christoph Brombacher, Daniela Benedikt
  • Patent number: 11946122
    Abstract: The present disclosure relates to a micron silver particle-reinforced 316L stainless steel matrix composite, including a 316L stainless steel matrix and silver particles uniformly distributed in the 316L stainless steel matrix. The silver particles have a weight 1% to 5% of the total weight of the composite; and the composite has a density of 7.9 g/cm3 to 8.2 g/cm3 and a relative density of more than 98%. The composite is prepared by the following method: mixing raw materials of a spherical silver powder and a spherical 316L stainless steel powder; subjecting a resulting mixture to mechanical ball milling to obtain a mixed powder; sieving the mixed powder and adding a resulting powder to a powder cylinder of an SLM forming machine; and charging an inert protective gas for printing to obtain the composite.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: April 2, 2024
    Assignee: NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS
    Inventors: Dongdong Gu, Kaijie Lin, Jingfeng Quan, Yamei Fang, Qing Ge, Jie Zhuang, Yang Liu, Weisong Dong, Pengjiang Shuai
  • Patent number: 11938541
    Abstract: A method for manufacturing a wrought metallic article from metallic-powder compositions comprises steps of (1) compacting the metallic-powder composition to yield a compact, having a surface, a cross-sectional area, and a relative density of less than 100 percent, (2) reducing the cross-sectional area of the compact via an initial forming pass of a rotary incremental forming process so that the compact has a decreased cross-sectional area, and (3) reducing the decreased cross-sectional area of the compact via a subsequent forming pass of the rotary incremental forming process by a greater percentage than that, by which the cross-sectional area of the compact was reduced during the initial forming pass.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: March 26, 2024
    Assignee: The Boeing Company
    Inventors: Austin E. Mann, Ali Yousefiani, Joe Pecina
  • Patent number: 11918973
    Abstract: Provided is a heavy metal adsorbent consisting of a zeolite with a median diameter on a volume basis of 10.0 ?m or more and a pore volume measured in a pore volume calculation range of 10 nm to 1000 nm by a mercury intrusion method of 0.1000 cm3/g or less.
    Type: Grant
    Filed: August 22, 2022
    Date of Patent: March 5, 2024
    Assignee: SINANEN ZEOMIC CO., LTD.
    Inventors: Naoyuki Inoue, Akio Taniguchi
  • Patent number: 11920210
    Abstract: A process for producing a solder product and a copper product from a first lead-tin based metal composition having at least 40% wt of copper and at least 5.0% wt together of tin and lead. The process includes the steps of partially oxidizing a first liquid bath having the first lead-tin based metal composition, thereby forming a first dilute copper metal composition and a first solder refining slag, followed by separating the slag from the metal composition, and partially oxidizing a second liquid bath having the first dilute copper metal composition, thereby forming a first high-copper metal composition and a third solder refining slag, followed by separating the third solder refining slag from the first high-copper metal composition, whereby the solder product is derived from the first solder refining slag.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: March 5, 2024
    Assignee: METALLO BELGIUM
    Inventors: Bert Coletti, Jan Dirk A. Goris, Yves De Visscher, Charles Geenen, Walter Guns, Niko Mollen, Steven Smets, Andy Breugelmans
  • Patent number: 11920224
    Abstract: A magnet structure includes columnar grains of rare earth permanent magnet phase aligned in a same direction and arranged to form bulk anisotropic rare earth alloy magnet having a boundary defined by opposite ends of the columnar grains and lacking triple junction regions, and rare earth alloy diffused onto opposite ends of the bulk anisotropic rare earth alloy magnet.
    Type: Grant
    Filed: January 10, 2022
    Date of Patent: March 5, 2024
    Assignee: Ford Global Technologies, LLC
    Inventors: Wanfeng Li, Feng Liang, Michael W. Degner
  • Patent number: 11915844
    Abstract: A method of processing NdFeB magnetic powder comprises: providing a source of hydrogenated NdFeB powder (101, 102, 103); feeding said powder into an inlet of a cyclone separator (104); separating the powder into an overflow enriched in Nd-rich grain boundary phase and an underflow enriched in NdxFeyBHz matrix phase particles (106); optionally feeding the underflow back into the inlet of the cyclone separator whereby to further enrich the underflow in the NdxFeyBHz matrix phase particles (108a); and collecting the underflow (108).
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: February 27, 2024
    Assignee: The University of Birmingham
    Inventors: Allan Walton, Neil Rowson
  • Patent number: 11913092
    Abstract: Morphology, microstructure, compressive behavior, and biocorrosive properties of magnesium or magnesium alloy foams allow for their use in biodegradable biomedical, metal-air battery electrode, hydrogen storage, and lightweight transportation applications. Magnesium or Mg alloy foams are usually very difficult to manufacture due to the strong oxidation layer around the metallic particles; however, in this invention, they can be synthesized via a camphene-based freeze-casting process with the addition of graphite powder using precisely controlled heat-treatment parameters. The average porosity ranges from 45 to 85 percent and the median pore diameter is about a few tens to hundreds of microns, which are suitable for bio and energy applications utilizing their enhanced surface area.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: February 27, 2024
    Assignee: CellMo Materials Innovation, Inc.
    Inventors: Kicheol Hong, Hyeji Park, Teakyung Um, Heeman Choe
  • Patent number: 11915861
    Abstract: There is provided a method for manufacturing a rare earth sintered magnet having a stable magnetic performance, by uniformly distributing a heavy rear earth element to the surface of the magnet and the grain boundary inside of the magnet by using a mixture of a heavy rare earth compound or a heavy rare earth metal alloy and a rare earth magnet powder, to lower a decrease rate of the magnetic characteristics based on the temperature of the rare earth sintered magnet.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: February 27, 2024
    Assignee: STAR GROUP IND. CO., LTD
    Inventors: Dong Hwan Kim, Koon Seung Kong
  • Patent number: 11908726
    Abstract: This application relates to a method of manufacturing an electrostatic chuck having good characteristics in heat dissipation, thermal shock resistance, and lightness. In one aspect, the method includes preparing a composite powder by ball-milling (i) aluminum or aluminum alloy powder and (ii) carbon-based nanomaterial powder. The method may also include preparing an electrode layer by sintering the composite powder through spark plasma sintering (SPS), and forming a dielectric layer on the electrode layer.
    Type: Grant
    Filed: April 29, 2022
    Date of Patent: February 20, 2024
    Assignee: Pukyong National University Industry-University Cooperation Foundation
    Inventor: Hansang Kwon
  • Patent number: 11904390
    Abstract: This application relates to a method of manufacturing an electrostatic chuck having a high heat dissipation property and high thermal shock resistance and being lightweight, and an electrostatic chuck manufactured by the method. In one aspect, the method includes preparing a composite powder by milling (i) aluminum or aluminum alloy powder and (ii) carbon-based nanomaterial powder through ball milling. The method may also include manufacturing a multilayer billet including a core layer and one or more shell layers surrounding the core layer, in which at least one of the core and shell layers contains the composite powder. The method may further include extruding the multilayer billet to form an electrode layer and forming a dielectric layer on the electrode layer.
    Type: Grant
    Filed: April 29, 2022
    Date of Patent: February 20, 2024
    Assignee: Pukyong National University Industry-University Cooperation Foundation
    Inventor: Hansang Kwon
  • Patent number: 11898217
    Abstract: A method for producing a steel plate member (SPM), including: a quenching step for heating the SPM to a temperature higher than an austenite transformation finish temperature A3 and subsequently cooling the SPM at a cooling rate (CR) faster than an upper critical CR; and a tempering step for reheating a second region of the SPM to a temperature higher than an austenite transformation start temperature A1 without reheating a first region of the SPM after quenching and subsequently cooling the SPM at a CR slower than a lower critical CR. In the cooling process of the tempering step, the shape of the second region is corrected in a temperature range from a temperature equal to or lower than A1 to a temperature equal to or higher than a temperature at which transformation into ferrite and pearlite is finished while maintaining the CR slower than the lower critical CR.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: February 13, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shoji Kawano, Shinya Yamamoto, Masatomo Niihara, Tomoaki Ihara
  • Patent number: 11901117
    Abstract: A method for manufacturing a powder magnetic core, the method including: forming a soft magnetic powder (SMP) layer by putting an SMP having a surface on which an insulating coating film is formed into a space surrounded by a lower punch and a die; forming a pressed powder by compressing the SMP layer in the die by the lower punch and an upper punch; and causing the pressed powder and the die to slide relative to each other and then removing the pressed powder from the die is provided. In forming the SMP layer, a different powder different from the SMP is put into the space before and after the SMP is put into the space and a different powder layer having a spring back rate higher than that of the SMP layer by 0.6-1.1% is formed on upper and lower sides of the SMP layer.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: February 13, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroto Nagaki, Kazumichi Nakatani, Kohei Ishii
  • Patent number: 11898226
    Abstract: A method for additive manufacturing of a composite object containing a bonded network of boron carbide particles and aluminum occupying spaces between boron carbide particles, the method comprising: (i) producing a porous preform constructed of boron carbide by an additive manufacturing process in which particles of boron carbide are bonded together; and (ii) infiltrating molten aluminum, at a temperature of 1000-1400° C., into pores of said porous preform to produce said composite object constructed of boron carbide particles within an aluminum matrix, wherein the boron carbide is present in the composite object in an amount of 30-70 wt. %. The resulting composite material is also herein described.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: February 13, 2024
    Assignee: UT-Battelle, LLC
    Inventors: Corson L. Cramer, James O. Kiggans, Jr., Amelia M. Elliott, David C. Anderson
  • Patent number: 11884991
    Abstract: A method for producing a further wire, wherein the method includes, providing a first wire and feeding the first wire through a furnace to obtain the further wire. A further cast of the further wire is larger than a first cast of the first wire.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: January 30, 2024
    Assignee: Heraeus Materials Singapore Pte., Ltd.
    Inventors: Zhen Yun Liu, Muhammad Shahzali Bin Jolani, Yang Yu
  • Patent number: 11881351
    Abstract: The disclosure provides a preparation method, which comprises: providing a moulding die for a ring-shaped sintered Nd—Fe—B magnet; placing a Nd—Fe—B magnetic powder into the mould cavity of the moulding die in a loosely packed state, the loosely packed height of the Nd—Fe—B magnetic powder is L; placing a flexible cylindrical core into the loosely packed Nd—Fe—B magnetic powder at a L/2 position, wherein an axial direction of the flexible cylindrical core is horizontal and parallel to the direction of a magnetic field in the mould cavity; applying a vertical pressure to the Nd—Fe—B magnetic powder to obtain a ring-shaped green block assembly with the flexible cylindrical core embedded; after encapsulating and isolating the ring-shaped green block assembly, applying an isostatic pressure to the ring-shaped green block assembly; sintering the ring-shaped green block assembly to obtain a ring-shaped sintered blank; thermally aging, grinding and slicing the ring-shaped sintered blank.
    Type: Grant
    Filed: July 23, 2021
    Date of Patent: January 23, 2024
    Assignee: Yantai Shougang Magnetic Materials Inc
    Inventors: Zhanji Dong, Zhongjie Peng
  • Patent number: 11872630
    Abstract: A method without a calibration step produces a camshaft adjuster including a stator, a rotor rotatable relative thereto and a control valve, wherein the rotor and/or the stator is or are produced according to a powder-metallurgical process, wherein the stator in the region of a fitting surface for contacting the camshaft and/or the rotor in the region of a fitting surface for contacting the camshaft and/or in the region of a fitting surface for contacting the control valve and/or the control valve in the region of a sealing surface is or are produced having a tolerance so that a clearance fit with a maximum clearance of 100 ?m is formed between the fitting surface for the camshaft and the camshaft and/or between the fitting surface for contacting the sealing surface of the control valve and the sealing surface of the control valve.
    Type: Grant
    Filed: January 11, 2021
    Date of Patent: January 16, 2024
    Assignee: Miba Sinter Austria Gmbh
    Inventors: Alexander Mueller, Karl Dickinger, Wolfgang Siessl
  • Patent number: 11873549
    Abstract: A method of forming an aircraft component includes providing an aluminum alloy. The method further includes mixing a shape memory alloy (SMA) with the aluminum alloy to form a combination of the SMA and the aluminum alloy. The method further includes forming the aircraft component with the combination of the SMA and the aluminum alloy.
    Type: Grant
    Filed: March 18, 2022
    Date of Patent: January 16, 2024
    Assignee: GOODRICH CORPORATION
    Inventors: Leslie S. Steele, Tahany Ibrahim El-Wardany, Thomas P. Filburn
  • Patent number: 11874064
    Abstract: A hood for a taphole and a tapping spout in a submerged arc furnace in the production of silicon. The hood has at least two suction ducts which are placed asymmetrically on either side of the hood, and is useful in a process for the production of silicon in a submerged arc furnace, wherein liquid silicon and refining gas escape from a taphole of a crucible, wherein the liquid silicon flows on a tapping spout into a ladle, wherein the refining gas is sucked in a hood which has at least two suction ducts which are placed on either side of the hood.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: January 16, 2024
    Assignee: Wacker Chemie AG
    Inventors: Evangelos Bertakis, Ronald Eulenberger, Einar Olav Schei