Patents Examined by Humera N. Sheikh
  • Patent number: 11219879
    Abstract: An aluminophosphate-metal oxide bonded body including a metal oxide having a bonding surface on a part of the surface thereof, and aluminophosphate that is disposed on the bonding surface of the metal oxide, wherein an alkali metal, an alkaline earth metal or both of these is/are disposed on the bonding surface of the metal oxide, and the content rate of the alkali metal, alkaline earth metal or both is from 0.3 to 30.0% by mass with respect to all of the substances that are disposed on the bonding surface of the metal oxide. An aluminophosphate-metal oxide bonded body that provides a favorable bonded state even for complicated shapes is provided.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: January 11, 2022
    Assignee: NGK Insulators, Ltd.
    Inventors: Takeshi Hagio, Makoto Miyahara, Tetsuya Uchikawa, Makiko Ichikawa, Kenichi Noda, Kenji Yajima
  • Patent number: 11214855
    Abstract: A piercer plug with increased recyclability is provided. A piercer plug (1) has a chemical composition of, in mass %: 0.15 to 0.30% C; 0.4 to 1.2% Si; 0.2 to 1.5% Mn; 0.1 to 2.0% Ni; 0 to 4.0% Mo and 0 to 4.0% W, where the total content of Mo and W is 1.0 to 6.0%; higher than 1.0% and not higher than 4.0% Cr; 0 to 0.2% B; 0 to 1.0% Nb; 0 to 1.0% V; 0 to 1.0% Ti; and balance Fe and impurities, the plug including a tip portion (2) and a trunk portion (3) made of the same material as the tip portion (2) and contiguous to the tip portion (2). The trunk portion (3) includes a cylindrical portion (5) having a hole used to mount a bar. The tip portion (2) is harder than the cylindrical portion (5).
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: January 4, 2022
    Assignee: Nippon Steel Corporation
    Inventors: Yasuyoshi Hidaka, Naoya Shirasawa, Tatsuya Miyai
  • Patent number: 11215227
    Abstract: A sliding member includes a back-metal layer including an Fe alloy and a sliding layer including a copper alloy including 0.5 to 12 mass % of Sn and the balance of Cu and inevitable impurities. A cross-sectional structure of the sliding layer includes first copper alloy grains in contact with a bonding surface and second copper alloy grains not in contact with the bonding surface. The first and second grains have an average grain size D1 and D2 respectively. D1 is 30 to 80 ?m; and D1/D2=0.1 to 0.3. In the cross-sectional structure, the second grains includes third grains that includes internal grains therein that are not in contact with a grain boundary of the third grains. A total area S1 of the third grains and a total area of the second copper alloy grains S2 satisfy: S0/S2=0.25 to 0.80.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: January 4, 2022
    Assignee: DAIDO METAL COMPANY LTD.
    Inventor: Masahiro Nakai
  • Patent number: 11214856
    Abstract: A ferritic stainless steel plate having a sheet thickness t of 5.0 to 12.0 mm, including a chemical composition consisting of, in mass percent, C: 0.001 to 0.010%, Si: 0.01 to 1.0%, Mn: 0.01 to 1.0%, P: 0.04% or less, S: 0.010% or less, Cr: 10.0 to 20.0%, Ni: 0.01 to 1.0%, Ti: 0.10 to 0.30%, V: 0.01 to 0.40%, Al: 0.005 to 0.3%, N: 0.001 to 0.02%, and as necessary, one or more of B, Mo, Cu, Mg, Sn, Sb, Zr, Ta, Nb, Hf, W, Co, Ca, REM, and Ga, with the balance being Fe and unavoidable impurities, wherein in a steel micro-structure, on a cross section parallel to a rolling direction, an area ratio of structures each satisfying: major grain diameter/minor grain diameter being 5.0 or more is 90% or more, and an average minor grain diameter of the structures is 100 ?m or less.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: January 4, 2022
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Shinichi Teraoka, Shinichi Tamura, Akihiro Nishimura
  • Patent number: 11213800
    Abstract: Multilayer structures comprising a covalent organic framework (COF) film in contact with a polyaromatic carbon (PAC) film. The multilayer structures can be made by combining precursor compounds in the presence of a PAC film. The PAC film can be for example, a single layer graphene film. The multilayer structures can be used in a variety of applications such as solar cells, flexible displays, lighting devices, RFID tags, sensors, photoreceptors, batteries, capacitors, gas-storage devices, and gas-separation devices.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: January 4, 2022
    Assignee: CORNELL UNIVERSITY
    Inventors: William R. Dichtel, Jiwoong Park, Arnab Mukherjee, Mark Philip Levendorf, Arthur Woll, Eric Spitler, John Colson
  • Patent number: 11215283
    Abstract: The present invention relates to a diamond-like coating for piston ring surfaces, comprising, an underlayer, a gradient layer and an AM layer, wherein the AM layer is a diamond-like coating doped with doping elements. The doping elements are one or a combination of at least two selected from the group consisting of Cr, Si and Ti, and the content thereof shows a cyclical change in a form of a sine wave fluctuation along with the thickness change of the AM layer. As compared with the conventional single-layer structure or gradient layer structure, the AM layer of such diamond-like coating has a multi-cycle transition structure since the content of the doping elements in the AM layer of such diamond-like coating shows a cyclical change in a sine wave fluctuation form.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: January 4, 2022
    Inventors: Yingxue Wu, Qianxi Liu, Yueting Zhou, Bo Zhang
  • Patent number: 11215299
    Abstract: This ferritic stainless steel pipe contains, by mass %: C: 0.001% to 0.100%; Si: 0.01% to 2.00%; Mn: 0.01% to 2.00%; P: 0.001% to 0.05%; S: 0.0001% to 0.005%; Cr: 10.5% to 20.0%; Sn: 0.001% to 0.600%; Ti: 0.001% to 1.000%; Al: 0.001% to 0.100%; and N: 0.001% to 0.02%, with a balance being Fe and unavoidable impurities, the ferritic stainless steel pipe includes a pipe-end-thickened portion at a pipe end portion, and a gap distance d (?m) formed at the pipe end portion satisfies a relationship of d?Cr2/(1000Sn) (in the expression, Cr and Sn represent amounts (mass %) of respective elements).
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: January 4, 2022
    Assignee: NIPPON STEEL STAINLESS STEEL CORPORATION
    Inventors: Masatoshi Abe, Junichi Hamada, Nobuhiko Hiraide
  • Patent number: 11208705
    Abstract: A high-strength cold-rolled steel sheet which is a steel sheet having a tensile strength of 980 MPa or more has a predetermined chemical component composition, a metallographic microstructure of the steel sheet contains, by area ratio, ferrite and granular bainite: 10% or more and 50% or less in total, one or both of upper bainite and lower bainite: 10% or more and 50% or less in total, tempered martensite: more than 0% and 30% or less, retained austenite: 5% or more, and one or more of pearlite, cementite, and martensite: 0% to 10% in total, and an area ratio of the ferrite with respect to a total area ratio of the ferrite and the granular bainite is 25% or less.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: December 28, 2021
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Yuri Toda, Kunio Hayashi, Katsuya Nakano, Eisaku Sakurada, Akihiro Uenishi, Kengo Takeda
  • Patent number: 11208703
    Abstract: A nickel-containing steel for low temperature service having a determined chemical composition of a Ni content of from 5.0 to 8.0%, in which the volume fraction of retained austenite in a region of 1.5 mm from a surface in the thickness direction is from 3.0 to 20.0% by volume, and the ratio of the hardness in a region of 1.0 mm from a surface in the thickness direction to the hardness in a region of ¼ of the thickness from a surface in the thickness direction is 1.1 or less, and a low-temperature tank using the nickel-containing steel for low temperature service.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: December 28, 2021
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Kazuyuki Kashima, Takayuki Kagaya
  • Patent number: 11203804
    Abstract: A nickel-containing steel plate for use at a low temperature, having a predetermined chemical composition, in which the volume fraction of retained austenite at a position 1.5 mm from the surface of the steel plate in the thickness direction is from 3.0 to 20.0% by volume; in which the maximum distance between adjacent grains of retained austenite on prior austenite grain boundaries at the position 1.5 mm from the surface of the steel plate in the thickness direction is 12.5 ?m or less; and in which the circle equivalent diameter of grains of retained austenite at a position corresponding to ¼ of the plate thickness from the surface of the steel plate in the thickness direction is 2.5 ?m or less. A tank for use at a low temperature, which is produced using the above described nickel-containing steel plate for use at a low temperature.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: December 21, 2021
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Takayuki Kagaya, Kazuyuki Kashima
  • Patent number: 11193195
    Abstract: A component for a hot-dip metal plating bath includes a base material and a thermal spray coating disposed to cover a surface of the base material. The base material includes ferritic stainless steel that contains: C: 0.10% to 0.50% by mass; Si: 0.01% to 4.00% by mass; Mn: 0.10% by mass to 3.00% by mass; Cr: 15.0% to 30.0% by mass; a total of Nb, V, Ti, and Ta: 0.9% by mass to 5.0% by mass; and a balance of Fe and unavoidable impurities. The ferritic stainless steel includes a microstructure that includes a ferrite phase as a main phase and a crystallized carbide, an area fraction of a Nb carbide, a Ti carbide, a V carbide, a Ta carbide, and a composite carbide thereof to the crystallized carbide of 30% or more. The hot-dip metal plating bath contains 50% by mass or more of Al.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: December 7, 2021
    Assignees: TOCALO CO., LTD., DAIDO STEEL CO., LTD., DAIDO CASTINGS CO., LTD.
    Inventors: Junichi Takeuchi, Masaya Nagai, Shinichi Kubo, Masashi Nagaya, Yoshinori Sumi, Yoshihiko Koyanagi, Hiroyuki Takabayashi, Yasuhiro Takenaka
  • Patent number: 11192322
    Abstract: What is presented is a unit cell comprising a cellular geometry that comprises cell walls and cell edges arranged into a combination of a cubic cell geometry and a tetrahedral cell geometry arranged to have a coincident central vertex. The cubic cell geometry comprises three orthogonal cell faces that intersect at its central vertex. The tetrahedral cell geometry comprises an arrangement of eight tetrahedral cells that share its central vertex such that each tetrahedral cell shares three coincident edges with three other tetrahedral cells in a cubically symmetric arrangement. The tetrahedral cell geometry is combined with the cubic cell geometry such that all vertices of the tetrahedral cell geometry are coincident with the vertices of the cubic cell geometry.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: December 7, 2021
    Assignee: Nama Development LLC
    Inventor: Jonathan Berger
  • Patent number: 11193536
    Abstract: A sliding member includes a back-metal layer including an Fe alloy and a sliding layer including a copper alloy including 0.5 to 12 mass % of Sn and the balance of Cu and inevitable impurities. The sliding layer has a cross-sectional structure perpendicular to a sliding surface of the sliding layer. The cross-sectional structure includes first copper alloy grains that are in contact with a bonding surface of the back-metal layer and second copper alloy grains that are not in contact with the bonding surface. The first copper alloy grains has an average grain size D1 and the second copper alloy grains has an average grain size D2. D1 and D2 satisfy the following relations: D1 is 30 to 80 ?m; and D1/D2=0.1 to 0.3.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: December 7, 2021
    Assignee: DAIDO METAL COMPANY LTD.
    Inventor: Masahiro Nakai
  • Patent number: 11186067
    Abstract: Gypsum boards formed from synthetic gypsum and other gypsum sources having high chloride salt concentrations. Gypsum boards may include a board core including set gypsum. A total concentration of the chloride anion in the board core ranges from about 500 ppm to about 3000 ppm, typically about 1000 ppm to about 3000 ppm, based on weight of the calcium sulfate hemihydrate. An inner surface of a front paper cover sheet contacts a first face of the board core. An inner surface of a back paper cover sheet contacts a second face of the board core. A starch layer coats the inner surface of at least one of the front and back cover sheet. Methods of making the gypsum board, and a wall system for employing the gypsum boards, are also provided.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: November 30, 2021
    Assignee: UNITED STATES GYPSUM COMPANY
    Inventors: Qinghua Li, Runhai Lu, Charles W. Cochran, Mark Hemphill
  • Patent number: 11186066
    Abstract: Gypsum boards formed from synthetic gypsum and other gypsum sources having high chloride salt concentrations. The gypsum boards may include a set gypsum board core layer between a front and back paper cover sheets. The back paper cover sheet has a plurality of perforations extending therethrough. Methods of making the gypsum boards, and a wall system for employing the gypsum boards, are also provided. The concentration of the chloride anion in aqueous gypsum slurry used to make the set gypsum board core layer and to perform the methods of the invention may range from about 500 ppm to about 3000 ppm, typically from about 500 ppm to about 2000 ppm per 1,000,000 parts by weight calcium sulfate hemihydrate, more typically from about 500 ppm to about 1500 ppm per 1,000,000 parts by weight calcium sulfate hemihydrate.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: November 30, 2021
    Assignee: UNITED STATES GYPSUM COMPANY
    Inventors: Mark Hemphill, Qinghua Li, Charles W. Cochran
  • Patent number: 11179917
    Abstract: A CMC ply assembly is disclosed including at least one matrix ply interspersed amongst a plurality of CMC plies. Each of the plurality of CMC plies includes a first matrix and a plurality of ceramic fibers. The at least one matrix ply includes a second matrix and is essentially free of ceramic fibers. The plurality of CMC plies and the at least one matrix ply are arranged in an undensified ply stack having an article conformation. A CMC article is disclosed including a plurality of densified CMC plies and at least one densified matrix ply interspersed amongst the plurality of densified CMC plies. A method for forming the CMC article is disclosed including forming, carburizing, infusing a melt infiltration agent into, and densifying the CMC ply assembly. The melt infiltration agent infuses more completely through the at least one matrix ply than through the plurality of CMC plies.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: November 23, 2021
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Matthew Troy Hafner, John McConnell Delvaux, Glenn Curtis Taxacher, Zachary John Snider
  • Patent number: 11180818
    Abstract: A steel bar for hot forging according to the present disclosure has a chemical composition consisting of, in mass percent, C: 0.05 to 0.40%, Si: 0.05 to 0.50%, Mn: 1.51 to 3.50%, P: 0.010 to 0.100%, S: 0.30% or less, Cr: 0.05 to 2.50%, V: 0.10 to 0.75%, Ti: 0.005% to 0.250%, Al: 0.005 to 0.060%, and N: 0.002 to 0.020%, with the balance being Fe and impurities, and satisfying Formula (1). A number density of TiNs having a circle equivalent diameter of not less than 20 ?m in steel is 0.3 to 4.0/mm2: 0.48?C+0.11Mn+0.08Cr+0.75V+0.20Mo?1.50??(1) where, symbols of elements in Formula are to be substituted by contents of corresponding elements (in mass percent).
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: November 23, 2021
    Assignee: Nippon Steel Corporation
    Inventors: Yusuke Miyakoshi, Motoki Takasuga
  • Patent number: 11174539
    Abstract: The steel material according to the present disclosure contains a chemical composition consisting of, in mass %, C: 0.20 to 0.50%, Si: 0.05 to 0.50%, Mn: 0.05 to 1.00%, P: 0.030% or less, S: 0.0100% or less, Al: 0.005 to 0.100%, Cr: 0.10 to 1.50%, Mo: 0.25 to 1.50%, Ti: 0.002 to 0.050%, N: 0.0100% or less and O: 0.0100% or less, with the balance being Fe and impurities. The steel material contains an amount of dissolved C within a range of 0.010 to 0.050 mass %. The steel material also has a yield strength within a range of 655 to less than 862 MPa, and a yield ratio of the steel material is 85% or more.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: November 16, 2021
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Hiroki Kamitani, Atsushi Soma, Shinji Yoshida, Yuji Arai, Seiya Okada
  • Patent number: 11167279
    Abstract: A plugged honeycomb structure, including: a pillar-shaped honeycomb structure body including porous partition walls; and plugging portions disposed at open ends of cells at an inflow end face side or at an outflow end face side, wherein a pore diameter corresponding to the cumulative pore volume of 10% is D10, a pore diameter corresponding to the cumulative pore volume of 30% is D30, a pore diameter corresponding to the cumulative pore volume of 50% is D50, a pore diameter corresponding to the cumulative pore volume of 70% is D70, a pore diameter corresponding to the cumulative pore volume of 90% is D90, the pore diameter D10 is 6 ?m or more, the pore diameter D90 is 58 ?m or less, and the plugged honeycomb structure satisfies the relationship of Expression (1). 0.35?(D70?D30)/D50?1.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: November 9, 2021
    Assignee: NGK Insulators, Ltd.
    Inventor: Tatsuyuki Kuki
  • Patent number: 11162162
    Abstract: A steel with high hardness and excellent toughness contains, in mass %, 0.40-1.00% C, 0.10-2.00% Si, 0.10-1.00% Mn, 0.030% or less P, 0.030% or less S, 1.10-3.20% Cr, 0.010-0.10% Al, and 0.15-0.50% V, and further contains at least one or two of 2.50% or less Ni and 1.00% or less Mo, with an amount of (C+V) being 0.60% or more in mass %, with the balance consisting of Fe and unavoidable impurities. The steel has a microstructure which is a martensitic structure with finely dispersed Fe-based ? carbides, with its prior austenite grain size being 20 ?m or less.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: November 2, 2021
    Assignees: OSAKA UNIVERSITY, KOMATSU LTD.
    Inventors: Yoritoshi Minamino, Koji Hagihara, Koji Yamamoto, Shohei Ikurumi, Yusuke Hiratsuka, Takeshi Fujimatsu, Toshiyuki Sugimoto