Patents Examined by Jenny R Wu
  • Patent number: 10711334
    Abstract: A method and process for at least partially forming a medical device. The present invention is generally directed to a medical device that is at least partially made of a novel alloy having improved properties as compared to past medical devices. The novel alloy used to at least partially form the medical device improves one or more properties (e.g., strength, durability, hardness, biostability, bendability, coefficient of friction, radial strength, flexibility, tensile strength, tensile elongation, longitudinal lengthening, stress-strain properties, improved recoil properties, radiopacity, heat sensitivity, biocompatibility, improved fatigue life, crack resistance, crack propagation resistance, etc.) of such medical device.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: July 14, 2020
    Assignee: MIRUS LLC
    Inventors: Udayan Patel, Noah Roth
  • Patent number: 10711322
    Abstract: A steel sheet for hot pressing includes: a specific chemical composition; and a steel structure comprising ferrite and cementite and represented, in area %: a total area ratio of bainite and martensite: 0% to 10%; and an area ratio of cementite: 1% or more; and a concentration of Mn in the cementite is 5% or more.
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: July 14, 2020
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Koutarou Hayashi, Toshinobu Nishibata
  • Patent number: 10711320
    Abstract: Warming a metastable steel after coating and before or during cold rolling suppresses the transformation of austenite to martensite, resulting in lower mill loads and higher amounts of reduction at similar loads. As-warm rolled steel has enhanced mechanical properties when compared to steel reduced the same amount by cold rolling at room temperature.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: July 14, 2020
    Assignee: AK Steel Properties, Inc.
    Inventors: Amrinder Singh Gill, Erik James Pavlina, Paul Valdas Janavicius
  • Patent number: 10704116
    Abstract: A high-strength thin steel sheet having excellent drawability and bake hardenability, and a method of manufacturing the same are provided. The high-strength thin steel sheet includes 0.0005 to 0.003 wt % of carbon (C); 0.5 wt % or less (excluding 0 wt %) of silicon (Si); 1.2 wt % or less (excluding 0 wt %) of manganese (Mn); 0.005 to 0.12 wt % of phosphorous (P); 0.008 wt % or less of sulfur (S); 0.005 wt % or less of nitrogen (N); 0.1 wt % or less (excluding 0 wt %) of acid-soluable aluminum (Al); 0.01 to 0.04 wt % of titanium (Ti); iron (Fe) as a remainder thereof; and unavoidable impurities. The high-strength thin steel sheet has BH of 4 MPa or more and P of 80% or more in Equation 1: P (%)={Nin/(Nin+Ngb)}×100, Nin being the number of carbides having a size of 20 nm or less within a crystal grain, and Ngb being the number of carbides having a size of 20 nm or less at a grain boundary.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: July 7, 2020
    Assignee: POSCO
    Inventor: Sang-Ho Han
  • Patent number: 10702944
    Abstract: An alloy structure has an arbitrary shape dimension which has high uniformity in the distribution of the element composition. The alloy structure contains Fe and at least four elements, which are selected from the group consisting of elements from atomic number 13 to atomic number 79 included in Group 3 to Group 16 of the periodic table of the elements and have a ratio of the atomic radius to an Fe atom of 0.83 or more but 1.17 or less, each of Fe and the four elements is contained in an atomic concentration range of 5 at % or more but 30 at % or less, a difference in atomic concentration between at least four elements among the at least four elements and Fe is in a range of less than 3 at %, and the alloy structure has, a column crystal in which the at least four elements and Fe are solid-dissolved.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: July 7, 2020
    Assignee: HITACHI METALS, LTD.
    Inventors: Takahiko Kato, Kousuke Kuwabara, Tadashi Fujieda, Kinya Aota, Isamu Takahashi, Hiroyuki Satake, Kenji Yamaga, Hajime Murakami
  • Patent number: 10697494
    Abstract: Provided is a sintered bearing, including Al, Cu, and Ni, the sintered bearing having Al—Cu—Ni alloy structures (3) sintered together. The Al—Cu—Ni alloy structures (3) each have an Al—Cu—Ni matrix phase (?-phase) and an Al—Ni compound phase (?-phase), and are free of an Al—Cu compound phase (?-phase).
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: June 30, 2020
    Assignee: NTN CORPORATION
    Inventors: Yoshinori Ito, Yuta Ohashi
  • Patent number: 10697034
    Abstract: System and methods relating to in-line heat-treating, hardening and tempering of material, such as for example, coiled steel into a roll-formed, hardened and tempered structural member having uniform or different targeted properties in selected zones of the structural member. The different targeted properties may be achieved by heating and/or cooling the material subject to certain parameters.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: June 30, 2020
    Assignee: Roll Forming Corporation
    Inventors: Matthew Work, William Schooley
  • Patent number: 10697052
    Abstract: The present invention provides a cold-rolled and annealed steel sheet of thickness between 0.7 mm and 2 mm, mechanical strength ranging from 1180 MPa to 1320 MPa, wherein the hole expansion ratio Ac % is greater than 20% and the bending angle is greater than or equal to 40°. The chemical composition includes, the contents being expressed as weight percent: 0.09%?C?0.11%, 2.6%?Mn?2.8%, 0.20%?Si?0.55%, 0.25%?Cr<0.5%, 0.025%?Ti?0.040%, 0.0015%?B?0.0025%, 0.005%?Al?0.18%, 0.08%?Mo?0.15%, 0.020%?Nb?0.040%, 0.002%?N?0.007%, 0.0005%?S?0.005%, 0.001%?P?0.020%, Ca?0.003%, the remainder being iron and inevitable impurities resulting from processing. The sheet has a microstructure including martensite or lower bainite.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: June 30, 2020
    Assignee: ArcelorMittal
    Inventors: Josee Drillet, Veronique Hebert
  • Patent number: 10689724
    Abstract: There is provided a steel sheet with strain induced transformation type composite structure having a predetermined chemical composition in which a microstructure at the ¼ thickness of the steel sheet includes, by area ratio, 50% to 85% of a polygonal ferrite, 3% to 10% of a residual austenite, 5% to 47% of bainite and 1% or less of a fresh martensite and a tempered martensite in total and satisfies the equation of 0.01<Ex.C/fsd?0.015, the microstructure includes 1×1016 pieces/cm3 or more of precipitates containing TiC, an average grain diameter of the residual austenite 1.0 ?m to 5.0 ?m at an equivalent circle diameter, an average of closest distances of the austenite is 3.0 ?m to 10.0 ?m, and an average diameter of the precipitates is 3 nm or less.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: June 23, 2020
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Tatsuo Yokoi, Hiroshi Shuto, Yuuki Kanzawa, Natsuko Sugiura
  • Patent number: 10683564
    Abstract: A system and method for recovering a high yield of low carbon ferrochrome from chromite and low carbon ferrochrome produced therefrom. A stoichiometric mixture of feed materials including scrap aluminum granules, lime, silica sand, and chromite ore are provided into a plasma arc furnace. The scrap aluminum granules are produced from used aluminum beverage containers. The feed materials are heated, whereupon the aluminum in the aluminum granules produces an exothermic reaction reducing the chromium oxide and iron oxide in the chromite to produce molten low carbon ferrochrome with molten slag floating thereon. The molten low carbon ferrochrome is extracted, solidified and granulated into granules of low carbon ferrochrome. The molten slag is extracted, solidified and granulated into granules of slag.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: June 16, 2020
    Assignee: MM Metals USA, LLC
    Inventors: Daniel Shaw, James Saville, John Williams, Trevor N. Mustoe
  • Patent number: 10675714
    Abstract: Provided is a grain-oriented electrical steel sheet including a steel sheet having a steel sheet surface in which a groove, which extends in a direction intersecting a rolling direction and of which a groove depth direction matches a sheet thickness direction, is formed. An average depth D of the groove is greater than 10 ?m and equal to or less than 40 ?m in a case where the groove is seen on a groove-width-direction cross-section that is perpendicular to a groove extension direction, when a center of the groove in the groove width direction is defined as a groove width center, a deepest portion of the groove deviates from the groove width center toward one side in the groove width direction, and a cross-sectional shape of the groove is asymmetric with respect to the groove width center as a reference in the groove width direction.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: June 9, 2020
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Tatsuhiko Sakai, Hideyuki Hamamura, Hisashi Mogi, Fumiaki Takahashi
  • Patent number: 10676630
    Abstract: A metallic nanoparticle dispersion includes metallic nanoparticles, a liquid carrier, and a dispersion-stabilizing compound according to Formulae I, II, III or IV, wherein Q represents the necessary atoms to form a substituted or unsubstituted a five or six membered heteroaromatic ring; M is selected from the group consisting of a proton, a monovalent cationic group and an acyl group; R1 and R2 are independently selected from the group consisting of a hydrogen, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted alkaryl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl or heteroaryl group, a hydroxyl group, a thioether, an ether, an ester, an amide, an amine, a halogen, a ketone and an aldehyde, R1 and R2 may represent the necessary atoms to form a five to seven membered ring; R3 to R5 are independently selected from the group consisting of a hydrogen, a
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: June 9, 2020
    Assignee: AGFA-GEVAERT
    Inventor: Dirk Bollen
  • Patent number: 10669607
    Abstract: This invention relates to a sheet or pre-coated blank comprising a steel substrate for heat treatment, overlaid on at least a part of at least one of its principal faces, by a pre-coating having, at least one layer of aluminum or aluminum alloy overlaid, on at least a part of the above-mentioned pre-coating, by a polymerized layer having a thickness between 2 and 30 ?m composed of a polymer that does not contain silicon, and the nitrogen content of which, is greater than 1% by weight expressed in relation to the above-mentioned layer, wherein the above-mentioned polymerized layer contains carbon pigments in a quantity between 3 and 30% by weight, expressed in relation to said layer.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: June 2, 2020
    Assignee: ArcelorMittal
    Inventors: Michel Sanadres, Christine Dessain
  • Patent number: 10648057
    Abstract: A method and system for recovering a high yield of low carbon ferrochrome from chromite and low carbon ferrochrome produced by the method. A stoichiometric mixture of feed materials including scrap aluminum granules, lime, silica sand, and chromite ore are provided into a plasma arc furnace. The scrap aluminum granules are produced from used aluminum beverage containers. The feed materials are heated, whereupon the aluminum in the aluminum granules produces an exothermic reaction reducing the chromium oxide and iron oxide in the chromite to produce molten low carbon ferrochrome with molten slag floating thereon. The molten low carbon ferrochrome is extracted, solidified and granulated into granules of low carbon ferrochrome. The molten slag is extracted, solidified and granulated into granules of slag.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: May 12, 2020
    Assignee: MM Metals USA, LLC
    Inventors: Daniel Shaw, James Saville, John Williams, Trevor N. Mustoe
  • Patent number: 10648055
    Abstract: A sheet or blank is provided which includes a substrate and pre-coating on at least one face of the substrate. A polymerized layer overlies at least a part of the pre-coating and has a thickness from 2 ?m to 30 ?m, a nitrogen content of less than 1% by weight, carbon pigments in a quantity from 3 to 30% by weight and does not include a polymer with silicon. A welded blank, part and fabrication methods are also provided.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: May 12, 2020
    Assignee: ArcelorMittal
    Inventors: Michel Sanadres, Christine Dessain
  • Patent number: 10640842
    Abstract: A fabrication method for a press hardened part is provided. A sheet or a steel substrate blank for heat treatment is provided. A pre-coating is applied. The pre-coating has at least one layer of aluminum or aluminum alloy in contact with the steel substrate on at least one of the principal faces of the sheet or blank. Then a polymerized layer is deposited on the pre-coating. The polymerized layer has a thickness between 2 and 30 ?m. The polymerized layer does not contain silicon, has a nitrogen content of less than 1% by weight and carbon pigments in a quantity between 3 and 30% by weight. The blank or the sheet is heated to obtain an interdiffusion between the steel substrate and the pre-coating and to give the steel a partly or totally austenitic structure. Then the blank or the sheet is hot stamped to obtain a part. The part is cooled by holding the part in a stamping tool so that the microstructure of the steel substrate includes, at least in a portion of the part, martensite or bainite.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: May 5, 2020
    Assignee: ArcelorMittal
    Inventors: Michel Sanadres, Christine Dessain
  • Patent number: 10640855
    Abstract: A high-strength air-hardenable multiphase steel having minimal tensile strengths in a non air hardened state of 750 MPa and excellent processing properties, said steel comprising the following elements in % by weight: C?0.075 to ?0.115; Si?0.200 to ?0.300; Mn?1.700 to ?2.300; Cr?0.280 to ?0.4800; Al?0.020 to ?0.060; N?0.0020 to ?0.0120; S?0.0050; Nb?0.005 to ?0.050; Ti?0.005 to ?0.050; B?0.0005 to ?0.0060; Ca?0.0005 to ?0.0060; Cu?0.050; Ni?0.050; remainder iron, including usual steel accompanying smelting related impurities, wherein for a widest possible process window during continuous annealing of hot rolled or cold rolled strips made from the steel a sum content of M+Si+Cr in the steel is a function of a thickness of the steel strips according to the following relationship: for strip thicknesses of up to 1.00 mm the sum content of M+Si+Cr is ?2.350 and ?2.500%, for strip thicknesses of over 1.00 to 2.00 mm the sum of Mn+Si+Cr is ?2.500 and ?2.950%, and for strip thicknesses of over 2.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: May 5, 2020
    Assignee: SALZGITTER FLACHSTAHL GMBH
    Inventors: Thomas Schulz, Joachim Schöttler, Sascha Kluge, Christian Meyer, Peter Matthies, Andreas Wedemeier
  • Patent number: 10640857
    Abstract: A steel contains, by weight: C: 0.2% to 0.5%, Si: 0.1% to 0.5%, Mn: 0.1% to 1%, P: 0.03% or less, S: 0.005% or less, Cr: 0.3% to 1.5%, Mo: 0.3% to 1%, Al: 0.01% to 0.1%, V: 0.1% to 0.5%, Nb: 0.01% to 0.05%, Ti: 0 to 0.01%, W: 0.3% to 1%, N: 0.01% or less, the remainder of the chemical composition of the steel being constituted by Fe and impurities or residuals resulting from or necessary to steel production and casting processes. The steel can be used to produce seamless tubes with a yield strength after heat treatment of 861 MPa or more.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: May 5, 2020
    Assignee: Vallourec Oil & Gas France
    Inventor: Alfredo De Lima Figueiredo
  • Patent number: 10639722
    Abstract: A preparation method for a silver-metal oxide electrical contact material, comprising: (1) mixing a silver-containing precursor solution with a metal oxide precursor solution; (2) reacting a reducing agent with the mixed solution to obtain silver powder coated with a metal oxide precursor; (3) heat treating the silver powder in a non-reducing atmosphere to obtain the silver-metal oxide electrical contact material. A preparation device for a silver-metal oxide electrical contact material, a silver-metal oxide electrical contact material prepared by the preparation method, and an electrical contact prepared by the silver-metal oxide electrical contact material. The electrical contact material prepared by the preparation method is at nanoscale, significantly prolonging electrical endurance of the electrical contact.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: May 5, 2020
    Assignee: SCHNEIDER ELECTRIC INDUSTRIES SAS
    Inventors: Nan Liu, Yijian Lai, Binyuan Zhao
  • Patent number: 10636723
    Abstract: To provide a method for manufacturing a heat dissipation component having excellent heat dissipation properties, in which there is minimal return of warping after the bonding of a circuit board, and to provide a heat dissipation component manufactured using the method. Provided is a method for manufacturing a warped flat-plate-shaped heat dissipation component containing a composite part that comprises silicon carbide and an aluminum alloy, wherein the method for manufacturing the heat dissipation component is characterized in that the heat dissipation component is sandwiched in a concave-convex mold having a surface temperature of at least 450° C. and having a pair of opposing spherical surfaces measuring 7000-30,000 mm in curvature radius, and pressure is applied for 30 seconds or more at a stress of 10 kPa or more such that the temperature of the heat dissipation component reaches at least 450° C.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: April 28, 2020
    Assignee: DENKA COMPANY LIMITED
    Inventors: Daisuke Goto, Takeshi Miyakawa, Yosuke Ishihara