Patents Examined by Katherine A Christy
  • Patent number: 12152305
    Abstract: An aluminum alloy-plated steel sheet having excellent workability and corrosion resistance and a method for manufacturing the same are disclosed. The aluminum alloy-plated steel sheet that includes a base sheet, and an alloy-plated layer formed on the base sheet. Interfacial roughness between the alloy-plated layer and the base steel sheet is 25. ?m or less. Such an aluminum alloy-plated steel sheet prevents microcracks generated during hot forming and has excellent seizure resistance and corrosion resistance. A method for manufacturing such an aluminum alloy-plated steel is also disclosed.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: November 26, 2024
    Assignee: POSCO
    Inventors: Suk-Kyu Lee, Hyeon-Seok Hwang, Myung-Soo Kim, Jong-Gi Oh, Kwang-Tai Min
  • Patent number: 12138886
    Abstract: The present invention relates to a plated steel sheet for hot stamping comprising a steel sheet and a Zn—Ni plating layer formed on at least one surface of the steel sheet, wherein the Zn—Ni plating layer has an Ni concentration of 8 mass % or more, a plating deposition amount of 10 g/m2 or more and 90 g/m2 or less per surface, and an average grain size of 50 nm or less.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: November 12, 2024
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Takehiro Takahashi, Daisuke Maeda, Hiroshi Takebayashi
  • Patent number: 12134812
    Abstract: A steel material has a chemical composition which consists of, in mass %, C: 0.15 to 0.30%, Si: 0.02 to 1.00%, Mn: 0.20 to 0.80%, P: 0.020% or less, S: 0.028% or less, Cr: 0.80 to 1.50%, Mo: 0.08 to 0.40%, V: 0.10 to 0.40%, Al: 0.005 to 0.060%, N: 0.0150% or less, O: 0.0030% or less, and the balance: Fe and impurities, and satisfies Formulae (1) and (2), in which, at a cross section parallel to the axial direction of the steel material for a steel piston, the number of Mn sulfides is 100.0 per mm2 or less, the number of coarse Mn sulfides having an equivalent circular diameter of 3.0 ?m or more is in a range of 1.0 to 10.0 per mm2, and the number of oxides is 15.0 per mm2 or less. 0.42?Mo+3V?1.50??(1) V/Mo?0.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: November 5, 2024
    Assignee: NIPPON STEEL CORPORATION
    Inventor: Yutaka Neishi
  • Patent number: 12129954
    Abstract: A seamless steel pipe of the present invention is a seamless steel pipe having a composition including, in mass %, C: 0.01 to 0.12%, Si: 0.01 to 0.8%, Mn: 0.10 to 2.00%, P: 0.050% or less, S: 0.040% or less, Al: 0.010 to 0.100%, Cu: 0.03 to 0.80%, Ni: 0.01 to 0.50%, Mo: 0.01 to 0.20%, Sb: 0.002 to 0.50%, Cr: 0.004% or less, W: 0.002% or less, and the balance Fe and incidental impurities, and a structure including a ferrite phase having an area percentage of 50 to 65%, a pearlite phase having an area percentage of 2% or less, and one or both of a bainite phase and a martensitic phase representing the remainder, the seamless steel pipe having a yield strength of 230 MPa or more, and a tensile strength of 380 MPa or more.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: October 29, 2024
    Assignee: JFE Steel Corporation
    Inventors: Hiroyuki Takai, Mitsuhiro Okatsu, Yasumasa Takemura, Tatsuo Koide
  • Patent number: 12123071
    Abstract: A hot-rolled (HR) strip steel with high flangeability at ultra-high strength levels with a high total elongation, bendability and toughness values, and a method of manufacturing the hot-rolled steel and use thereof.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: October 22, 2024
    Assignee: TATA STEEL IJMUIDEN B.V.
    Inventor: Radhakanta Rana
  • Patent number: 12116287
    Abstract: Disclosed herein is an inverse photonic structure comprising a first component comprising air holes or colloidal particles; and a metal oxide matrix comprising metal oxide nanocrystals, wherein the metal oxide nanocrystals comprise at least one of: a transition metal, titania, zirconia, alumina, iron oxide, zinc oxide, tin oxide, beryllia, a noble metal oxide, platinum group metal oxides, hafnia, molybdenum oxide, tungsten oxide, rhenium oxide, tantalum oxide, niobium oxide, vanadium oxide, chromium oxide, scandium oxide, yttria, lanthanum oxide, ceria, a rare earth oxide, thorium oxide, uranium oxide, other rare earth oxides, or a combination thereof, wherein the inverse photonics structure is crack-free for at least 10,000 repeat units of the first component.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: October 15, 2024
    Assignee: President and Fellows of Harvard College
    Inventors: Joanna Aizenberg, Tanya Shirman, Katherine Reece Phillips, Elijah Shirman, Theresa Kay
  • Patent number: 12103116
    Abstract: An aluminum brazing sheet has a multilayer structure of two or more layers of at least a core material and a brazing material, wherein an Al—Si—Mg—Bi-based brazing material containing, by mass %, 0.01% to 2.0% of Mg, 1.5% to 14.0% of Si, and 0.005% to 1.5% of Bi is clad on one surface or both surfaces of the core material to be located at an outermost surface of the aluminum brazing sheet, in the Al—Si—Mg—Bi based brazing material, there are more than 10 Mg—Bi-based compounds having a diameter of 0.01 ?m or more and less than 5.0 ?m when observed in a surface layer plane direction and there are less than 2 Mg—Bi-based compounds having a diameter of 5.0 ?m or more, and in the brazing material, there are less than 5 Bi particles having a diameter of 5.0 ?m or more when observed in the surface layer plane direction.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: October 1, 2024
    Assignee: MA Aluminum Corporation
    Inventors: Yoshiki Mori, Hideyuki Miyake, Michihide Yoshino, Shohei Iwao, Masakazu Edo
  • Patent number: 12091722
    Abstract: Grain-oriented electrical steel sheet and its method of manufacture are provided. The method includes a process of heating to 1280° C. or more and hot rolling a slab containing, by mass %, Bi and a predetermined composition of constituents and having a balance of Fe and impurities to obtain hot rolled steel sheet. After hot rolling annealing, the hot rolled steel sheet is cold rolled one time or more with process annealing performed interposed so as to obtain cold rolled steel sheet, followed by a process of rapidly heating then decarburization annealing the steel sheet, a process of coating the surface of the cold rolled steel sheet after decarburization annealing with an annealing separator comprising sulfates or sulfides and having MgO as its main constituent, then performing finish annealing, a process of performing strictly controlled finish annealing, and a process of coating an insulating coating, then performing flattening annealing.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: September 17, 2024
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Nobusato Morishige, Ryutaro Yamagata, Ichiro Tanaka, Takashi Kataoka, Haruhiko Atsumi, Yoshihiro Suwa, Kazumi Mizukami
  • Patent number: 12065711
    Abstract: A high-strength hot rolled steel sheet and a method for manufacturing the high-strength hot rolled steel sheet are disclosed. The high-strength hot rolled steel sheet includes a specific chemical composition, and a steel structure in which a lower bainite phase and/or a tempered martensite phase at 90% or more in terms of a total area fraction is contained as a dominant phase, an average grain size of the dominant phase is 10.0 ?m or less, and an amount of Fe in Fe-based precipitates is 0.70% or less in mass %, in which an arithmetic average roughness (Ra) of a surface is 2.50 ?m or less, and a tensile strength TS is 1180 MPa or more.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: August 20, 2024
    Assignee: JFE Steel Corporation
    Inventors: Kazuhiko Yamazaki, Takeshi Yokota, Sumio Kaiho, Noriaki Moriyasu
  • Patent number: 12065385
    Abstract: A ceramic-copper composite having a flat plate shape, including: a ceramic layer; a copper layer; and a brazing material layer present between the ceramic layer and the copper layer. When a region having a length of 1,700 ?m in a long-side direction is a region P on a cut surface of the ceramic-copper composite obtained when the ceramic-copper composite is cut with a plane perpendicular to a main surface of the ceramic-copper composite, an average crystal grain size D1 of copper crystals at least partially present in a region P1 within 50 ?m on a side of the copper layer from an interface between the ceramic layer and the brazing material layer in the region P is 30 ?m or more and 100 ?m or less.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: August 20, 2024
    Assignee: DENKA COMPANY LIMITED
    Inventors: Akimasa Yuasa, Takahiro Nakamura, Shuhei Morita, Koji Nishimura
  • Patent number: 12054818
    Abstract: There is provided a duplex stainless steel tube including a chemical composition consisting of, in mass %, C: 0.008 to 0.030%, Si: 0.10 to 0.70%, Mn: 0.80 to 2.60%, P: 0.030% or less, S: 0.0001 to 0.0050%, O: 0.0004 to 0.0150%, Sn: 0.0001% or more to less than 0.0100%, Cu: 0.10 to 2.50%, Ni: more than 2.50 to 5.50% or less, Cr: 21.5 to 25.5%, Mo: 0.10 to 0.50%, N: 0.050 to 0.200%, Al: 0.200% or less, and optional elements, with the balance: Fe and impurities, wherein 4S+8O+Sn is 0.0040 to 0.0900, and 4S+Sn is 0.0180 or less.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: August 6, 2024
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Hiroyuki Hirata, Shohgo Aota, Mitsuru Yoshizawa, Takahiro Osuki
  • Patent number: 12054817
    Abstract: The invention is a high strength austenitic steel composition having increased strength and toughness characteristics, applicable for use in a seawater environment. The high strength austenitic steel may include nanometer-scale carbides, carbonitrides of vanadium, and carbides and carbonitrides having molybdenum, titanium, and niobium. The austenitic steel includes, 0.15-0.5 wt. % of carbon, 0-0.8 wt. % of silicon 6-14 wt. % of manganese, 9-13.5 wt. % of nickel, 0-3 wt. % of copper; 0.8-2.2 wt. % of vanadium, 0-4 wt. % of molybdenum, 0-4 wt. % of chromium; 0-0.9 wt. % of aluminum, 0-0.1 wt. % of calcium, 0-0.3 wt. % of titanium, 0-0.6 wt. % of niobium, 0-0.2 wt. % of tungsten, 0-0.2 wt. % of nitrogen, 0-0.1 wt. % of cerium, 0-0.1 wt. % of lanthanum, 0-0.05 wt. % of sulfur, and 0-0.05 wt. % of phosphorus.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: August 6, 2024
    Assignee: United States of America, represented by the Secretary of the Navy
    Inventors: Paul Lambert, Matthew Draper, Matthew Sinfield, Daniel Bechetti
  • Patent number: 12048388
    Abstract: A system and method for a wooden soccer ball trophy which includes a wooden soccer ball and a personalized base. The wooden soccer ball is crafted to the size, shape, and appearance of a professional soccer ball and rests upon the personalized base. In some instances, the wooden soccer ball trophy is decorated to include any type of team logo, dates, or other relevant information.
    Type: Grant
    Filed: November 7, 2022
    Date of Patent: July 30, 2024
    Inventors: Judy Balasa, Edwin Arthur Metzger, Jr.
  • Patent number: 12043877
    Abstract: A steel sheet includes a sheet thickness center part and a first surface layer softened part and a second surface layer softened part respectively arranged at two sides of the sheet thickness center part, wherein the first surface layer softened part and second surface layer softened part have 10 ?m or more average thicknesses and have average Vickers hardnesses of 0.90 times or less of the average Vickers hardness of a sheet thickness ½ position, and the first surface layer softened part has an average Vickers hardness of 1.05 times or more the average Vickers hardness of the second surface layer softened part.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: July 23, 2024
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Katsuya Nakano, Yuji Sakiyama, Takashi Yasutomi, Yoshiaki Honda, Masahiro Nakata
  • Patent number: 12030099
    Abstract: A formed sheet metal material and methods, tools and apparatus for forming the sheet metal material in which a pattern of projections and depressions are cold worked in a first portion and, simultaneously, indicia is embossed in a second portion of the sheet material. The cold worked portion is formed with the projections and depressions configured and distributed such that lines drawn on a surface of the formed sheet material between adjacent rows of projections and depressions are not rectilinear. The indicia is indicative of the alignment between the tools.
    Type: Grant
    Filed: March 22, 2022
    Date of Patent: July 9, 2024
    Assignee: HADLEY INDUSTRIES OVERSEAS HOLDINGS LTD.
    Inventor: Michael Castellucci
  • Patent number: 12031201
    Abstract: The present invention relates to a plated steel sheet for hot stamping comprising a steel sheet and a Zn—Ni plating layer formed on at least one surface of the steel sheet, wherein the Zn—Ni plating layer has an Ni concentration of 8 mass % or more, a plating deposition amount of 10 g/m2 or more and 90 g/m2 or less per surface, and an average grain size of 50 nm or more, and a difference between a diffraction peak of the Zn—Ni plating layer after heat treating the plated steel sheet for hot stamping at 200° C. for 1 hour, and a diffraction peak of the Zn—Ni plating layer before heat treating it, is 0.3° or less.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: July 9, 2024
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Takehiro Takahashi, Daisuke Maeda, Hiroshi Takebayashi
  • Patent number: 12018352
    Abstract: This hot rolled steel sheet is a hot rolled steel sheet including a base steel sheet and a scale formed on a surface of the base steel sheet, in which the base steel sheet has a predetermined chemical composition, the scale has a layer structure composed of wustite, magnetite, and hematite in order from the base steel sheet side or a layer structure composed of the wustite and the magnetite in order from the base steel sheet side, and, when a thickness of the scale is represented by s, a thickness of the hematite is represented by h, and a thickness of the magnetite is represented by m, the s, the h, and the m satisfy formula (1) and formula (2). (h+m)/s<0.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: June 25, 2024
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Mutsumi Sakakibara, Akifumi Sakakibara, Tetsu Asato, Akihiro Yamamoto
  • Patent number: 12006641
    Abstract: A synthetic turf putting green includes a backing, tufts of yarn, and one or more fabric, fiber or foam padding material having the tufts of yarn stitched therein. A liquid may be added to and absorbed by the fabric, fiber or foam pad or pads to produce an additional shock absorbing affect such that the bounce of a golf ball mimics the bounce on a natural/real grass putting green.
    Type: Grant
    Filed: July 26, 2021
    Date of Patent: June 11, 2024
    Inventor: Bradford Dale Church
  • Patent number: 11998987
    Abstract: In one aspect, a method of making a sintered article comprises providing a composite article comprising a porous exterior printed from a powder composition via one or more additive manufacturing techniques, the porous exterior defining an interior volume and providing a loose powder component in the interior volume. The porous exterior and loose powder component are simultaneously sintered to provide the sintered article comprising a sintered interior and sintered exterior.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: June 4, 2024
    Assignee: KENNAMETAL INC.
    Inventors: Paul D. Prichard, Kevin Gamble, John Skwara
  • Patent number: 12000035
    Abstract: A part includes a base material, a colored layer on the base material, and a surface layer on the colored layer, wherein the colored layer contains Zr, and optionally, C and/or N, a ratio (HZr oxide/HZr) of a peak height derived from Zr oxide (HZr oxide) to a peak height of Zr (HZr) at an interface of the colored layer on the side of the surface layer is more than 0 and less than 4.5, the interface is a point where Zr is detected by sputtering the part from the side of the surface layer with an XPS depth direction analysis, and the ratio (HZr oxide/HZr) at a point where Ar sputtering is performed for 5 minutes from the interface of the colored layer on the side of the surface layer with the XPS depth direction analysis is 0 to less than 3. The surface layer is water-repellent and exhibits a sputtering time of 5 minutes or less.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: June 4, 2024
    Assignee: Toto Ltd.
    Inventors: Yui Noda, Saori Ukigai, Yuya Suzuki