Patents Examined by Ricardo D Morales
  • Patent number: 10851446
    Abstract: Magnet microstructure manipulation in the solid state by controlled application of a sufficient stress in a direction during high temperature annealing in a single-phase region of heat-treatable magnet alloys, e.g., alnico-type magnets is followed by magnetic annealing and draw annealing to improve coercivity and saturation magnetization properties. The solid-state process can be termed highly controlled abnormal grain growth (hereafter AGG) and will make aligned sintered anisotropic magnets that meet or exceed the magnetic properties of cast versions of the same alloy types.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: December 1, 2020
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Iver E. Anderson, Emma Marie Hamilton White, Matthew J. Kramer, Aaron G. Kassen, Kevin W. Dennis
  • Patent number: 10851435
    Abstract: A dual-hardness clad steel plate. One surface of the steel plate is a high-hardness layer, the other surface of the steel plate is a low-hardness layer, and a combination of atoms is achieved between the high-hardness layer and the low-hardness layer by rolling bonding, wherein Mn13 steel is adopted for the low-hardness layer, and the Brinell hardness of the high-hardness layer is greater than 600. Further disclosed is a production method of the dual-hardness clad steel plate, comprising: 1) respectively preparing a high-hardness layer slab and a low-hardness layer slab; 2) assembling: preprocessing combined faces of the slabs, carrying out peripheral welded sealing on joint faces of the slabs, and carrying out vacuumizing treatment on a composite slab after welded sealing; 3) heating; 4) carrying out composite rolling; 5) cooling; and 6) carrying out thermal treatment, wherein the heating temperature is 1050-1100° C.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: December 1, 2020
    Assignee: Baoshan Iron & Steel Co., Ltd.
    Inventors: Xiaoting Zhao, Bao Yan, Liandeng Yao, Sihai Jiao, Hongbin Li
  • Patent number: 10843268
    Abstract: The present invention provides a robust metal lamination-shaped object containing aluminum and having no defect. A metal powder used for forming this metal lamination-shaped object is an aluminum-based powder having a volume-based 50% particle diameter larger than or equal to 10 ?m and smaller than 100 ?m when a particle diameter distribution is measured by a laser diffraction-scattering method, a specific surface area smaller than or equal to 0.5 m2/g, and an oxygen amount larger than or equal to 3 mg/m2 and less than or equal to 10 mg/m2 per unit surface area. A relationship between a hydrogen amount (X ml in standard state) per 100 g of the aluminum-based powder and a specific surface area (Y m2/g), and a relationship between the hydrogen amount (X ml in standard state) and an oxygen amount (Z wt %), are respectively in accordance with formulas: X/Y<151 and Z/X>0.0022.
    Type: Grant
    Filed: December 26, 2016
    Date of Patent: November 24, 2020
    Inventors: Yoshiki Hashizume, Isao Murakami, Kenji Muramatsu, Kenta Ishigami
  • Patent number: 10837072
    Abstract: A method for forming a component utilizing ultra-high strength steel and components formed by the method. The method includes the step of providing a flat blank of ultra-high strength 22MnB5 steel. The next step of the method is cold forming the flat blank into an unfinished shape of a component while the blank is in an unhardened state. Then, heating the unfinished shape of the component and generating a spline form thereon. The method proceeds by forming a finished shape of the component using a quenching die resulting in a fine-grained martensitic component material structure and enabling net shape processing to establish final geometric dimensions of the component.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: November 17, 2020
    Inventors: John Richard Sabo, Sokol Sulaj, David Victor Dorigo
  • Patent number: 10829830
    Abstract: The present disclosure relates to a middle high temperature pressure vessel steel plate having excellent resistance against a post weld heat treatment (PWHT) and a manufacturing method therefor. The pressure vessel steel plate includes 0.05 to 0.17 wt % of C, 0.50 to 1.00 wt % of Si, 0.3 to 0.8 wt % of Mn, 1.0 to 1.5 wt % of Cr, 0.3 to 1.0 wt % of Mo, 0.003 to 0.30 wt % of Ni, 0.003 to 0.30 wt % of Cu, 0.005 to 0.06 wt % of Sol.Al, 0.015 wt % or less of P, and 0.020 wt % or less of S; additionally two or more elements selected from 0.002 to 0.025 wt % of Nb, 0.002 to 0.03 wt % of V, and 0.002 to 0.15 wt % of Co; and Fe and unavoidable impurities as the reminder, wherein a microstructure of a central portion of the steel plate is formed in a mixed structure of 20 area % or more of tempered martensite and the residue bainite.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: November 10, 2020
    Assignee: POSCO
    Inventor: Soon-Taik Hong
  • Patent number: 10814386
    Abstract: The present invention relates to a method and an apparatus for coating large area solid substrates with metal based alloys or compounds by contacting the substrate surface with an unoxidised metal powders formed by in situ reaction of a metal halide and a reducing agent. The method is suitable for coating large area substrates such as flakes, powder, beads, and fibres with metal based alloys or compounds starting from low-cost chemicals such as metal chlorides. The method is particularly suited for production of substrates coated with metals, alloys and compounds based on Zn, Sn, Ag, Co, V, Ni, Cr, Fe, Cu, Pt, Pd, Ta, Nb, Rh, Ru, Mo, Os, Re and W.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: October 27, 2020
    Assignee: D-Block Coating PTY LTD
    Inventor: Jawad Haidar
  • Patent number: 10815128
    Abstract: Nanoparticles and method for producing uniform silicate-based nanoparticles are disclosed. The method comprises a step of injecting into tubular branched elements comprising static mixers a first aqueous solution comprising a water-soluble silicate compound and a second aqueous solution comprising a water-soluble compound releasing cationic species in solution, and allowing the reaction between the first and the second aqueous solutions in a micro-mixing regime, the method being characterized in that the overall mixing time is kept below 10?5 s. A further step of allowing the solution obtained in the micro-mixing regime to mix in a macromixing regime. Nanoparticles obtained through the present method are also disclosed.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: October 27, 2020
    Inventors: Abhishek Kumar, Paul Bowen
  • Patent number: 10808302
    Abstract: A magnesium alloy is provided that includes: 5.0 mass % or more and 15.0 mass % or less of Al; 2.5 mass % or more and 7.0 mass % or less of Sr; 0.05 mass % or more and less than 3.0 mass % of Ca; and 0.1 mass % or more and 0.6 mass % or less of Mn, with a remainder including Mg and inevitable impurities.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: October 20, 2020
    Inventors: Manabu Mizutani, Katsuhito Yoshida, Nozomu Kawabe, Seiji Saikawa
  • Patent number: 10801092
    Abstract: The present invention relates to a thick steel plate having excellent low-temperature toughness and hydrogen-induced cracking resistance, and a method for manufacturing the same.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: October 13, 2020
    Assignee: POSCO
    Inventors: Seong-Ung Koh, Jae-Hyun Park, Yoen-Jung Park, Moo-Jong Bae
  • Patent number: 10787717
    Abstract: The invention relates to the use of off-gas from furnaces (2) for the process of reduction of iron oxide. The bypass duct leads off-gas with reduction atmosphere directly into the reactor, passing through and back to join the main duct of dedusting system using negative pressure of the primary dedusting system. The off-gas directly heats up the iron oxide pellet and maintain the reduction atmosphere in the reactor and allow the reaction to proceed and prevent re-oxidation.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: September 29, 2020
    Inventor: Narong Limastian
  • Patent number: 10773303
    Abstract: The present disclosure relates to polycrystalline diamond covalently bonded to a substrate by spark plasma sintering and methods of covalently bonding polycrystalline diamond and a substrate. Spark plasma sintering produces plasma from a reactant gas found in the pores in the polycrystalline diamond and, optionally, also the substrate. The plasma forms carbide structures in the pores, which covalently bond to the substrate.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: September 15, 2020
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Qi Liang, William Brian Atkins
  • Patent number: 10751840
    Abstract: A multilayer composite bonding material with a plurality of thermal stress compensation layers is provided. The plurality of thermal stress compensation layers include a metal core layer, a pair of particle layers extending across the metal core layer such that the metal core layer is sandwiched between the pair of particle layers, and a pair of metal outer layers extending across the pair of particle layers such that the pair of particle layers are sandwiched between the pair of metal outer layers. A pair of low melting point (LMP) bonding layers extend across the pair of metal outer layers. The metal core layer, the pair of particle layers, and the pair of metal outer layers each have a melting point above a transient liquid phase (TLP) sintering temperature, and the pair of LMP bonding layers each have a melting point below the TLP sintering temperature.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: August 25, 2020
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Shailesh N. Joshi, Ercan M. Dede
  • Patent number: 10752509
    Abstract: Provided are a method of preparing a metal oxide-silica composite aerogel, which includes preparing metal oxide-silica composite precipitates by adding a metal salt solution to a silicate solution and performing a reaction, and washing the metal oxide-silica composite precipitates with a washing solvent having a surface tension at 20±5° C. of 30 mN/m or less and drying the washed metal oxide-silica composite precipitates, and a metal oxide-silica composite aerogel having increased specific surface area and pore properties as well as tap density, which is significantly reduced by a maximum of 78.6% in comparison to a composite aerogel prepared by using water as a typical washing solvent, prepared by the method.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: August 25, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Jong Hun Kim, Je Kyun Lee
  • Patent number: 10751837
    Abstract: A method for manufacturing reinforced steel structural components is described. The method comprises providing a previously formed steel structural component, selecting one or more reinforcement zones of the previously formed structural component, and locally depositing a material on the reinforcement zone to create a local reinforcement on a first side of the structural component. Locally depositing a material on the reinforcement zone comprises supplying a metal filler material to the reinforcement zone, and substantially simultaneously applying laser heat to melt the metal filler material and create the reinforcement by drawing specific geometric shapes on the first side of the structural component with the metal filler material and the laser heating. And the method further comprises providing cooling to areas on an opposite side of the structural component. The disclosure further relates to a tool for manufacturing reinforced steel structural components and to the components obtained using such methods.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: August 25, 2020
    Assignee: Autotech Engineering A.I.E.
    Inventors: Michel Garcia, Laura Galceran Oms
  • Patent number: 10752972
    Abstract: A hot-rolled steel sheet includes a predetermined chemical composition, and a structure which includes, by area ratio, a ferrite in a range of 5% to 60% and a bainite in a range of 30% to 95%, in which in the structure, in a case where a boundary having an orientation difference of equal to or greater than 15° is defined as a grain boundary, and an area which is surrounded by the grain boundary and has an equivalent circle diameter of equal to or greater than 0.3 ?m is defined as a grain, the ratio of the grains having an intragranular orientation difference in a range of 5° to 14° is, by area ratio, in a range of 20% to 100%.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: August 25, 2020
    Inventors: Natsuko Sugiura, Mitsuru Yoshida, Hiroshi Shuto, Tatsuo Yokoi, Masayuki Wakita
  • Patent number: 10749416
    Abstract: A method is for manufacturing a core plate having an annular core back and teeth extending from the core back toward the center. The core plate is obtained by performing a punching step, a winding step, a straining step and an annealing step. At the straining step, compressive strain is applied to the core back or the band-shaped core back that is to be the core back after winding. At the annealing step, the core back or the band-shaped core back is annealed to be recrystallized after the applying of strain.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: August 18, 2020
    Inventors: Tetsuya Aoki, Takeshi Senoo, Keiichi Okazaki, Satoshi Doi, Hiroshi Fujimura, Hiroaki Sato
  • Patent number: 10744485
    Abstract: The MOF-derived porous carbon materials for carbon dioxide capture, more specifically comprising a method for preparing thereof and the porous carbon materials for the purpose of CO2 absorbent, wherein the porous carbon materials from zinc-containing three MOFs (MOF-5, MOF-177, and bioMOF-100) are synthesized by a simple pyrolysis and thereby the porous carbon materials have promising CO2 capture capacity and selectivity compared to parent of MOFs prior to pyrolysis, particularly, the CO2 capture capacity of the porous carbon materials is maintained under humid condition.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: August 18, 2020
    Inventor: Chang Yeon Lee
  • Patent number: 10745771
    Abstract: A molten steel refining method includes throwing a powder to molten steel while heating the powder with a flame formed by combustion of a hydrocarbon gas at the leading end of a top blowing lance. The lance height of the top blowing lance (the distance between the static bath surface of the molten steel and the leading end of the lance) is controlled to 1.0 to 7.0 m, and the dynamic pressure P of a jet flow ejected from the top blowing lance calculated from equation (1) below is controlled to 20.0 kPa or more and 100.0 kPa or less. P=?g× U2/2 . . . (1) wherein P is the dynamic pressure (kPa) of the jet flow at an exit of the top blowing lance, ?g the density (kg/Nm3) of the jet flow, and U the velocity (m/sec) of the jet flow at the exit of the top blowing lance.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: August 18, 2020
    Inventors: Yusuke Fujii, Yoshie Nakai, Naoki Kikuchi, Naoya Shibuta, Shinichi Nagai, Takahiko Maeda, Yuji Miki
  • Patent number: 10738373
    Abstract: An apparatus and method for creating shapes (e.g., letters, numbers, characters, symbols, or a combination thereof) using shape memory alloy (SMAs) component. The SMA components shaped into formed shapes that can then be distorted to obscure the original formed shaped. The original formed shape can be restored upon exposure to a heat source, magnetic field, or upon load removal.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: August 11, 2020
    Assignee: United States of America as Represented by the Administrator of National Aeronautics and Space Administration
    Inventors: Othmane Benafan, Eunice E. Arvizu
  • Patent number: 10741326
    Abstract: A method for improvement of magnetic performance of sintered NdFeB magnet includes the following steps. Firstly, material containing element R, H and X is to be covered on a surface of the sintered NdFeB magnet to form a finish coat. After that, proceed with a diffusion treatment and an aging treatment to the sintered NdFeB magnet with the finish coat in the environment of vacuum or inert gas. R is at least one of such elements as Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu. H is hydrogen. X is at least one of such elements as C, O, N, S, B, Cl and Si.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: August 11, 2020
    Inventors: Xiangke Lv, Chunguo Wang, Min Zhang, Yong Ding, Qingzhong Yang, Yiqun Hu, Jiangfeng Wang