Patents Examined by Brian Walck
  • Patent number: 10094006
    Abstract: The present invention is related to a method of fabricating an aluminum matrix composite by a simple process of heating a mixture of a ceramic reinforcing phase and aluminum in nitrogen containing atmosphere and an aluminum matrix composite fabricated by the same. The aluminum matrix composite may be fabricated by heating to temperatures even lower than the melting temperature of aluminum as well as to temperatures higher. The exothermic nitridation reaction contributes to the melting of the aluminum matrix and the aluminum nitride formed in-situ as a result may act as an additional reinforcing phase.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: October 9, 2018
    Assignees: ALCOM, SENUS CORP.
    Inventors: Kon-Bae Lee, Jae-Pyoung Ahn, Hae Sung Kim, Hyunjoo Choi
  • Patent number: 10077492
    Abstract: The present invention provides an ultrafine-grained profile of twin-crystal wrought magnesium alloys, preparation process and use of the same. In the process, raw materials of magnesium alloys are firstly smelted and cast, and are subjected to solution treatment at 300˜500° C.; then a preform is pre-deformed, so that a great amount of twin crystal microstructure forms in the magnesium alloys and the grain size of not larger than 100 ?m is achieved; subsequently continuous ECAP process is performed at 200˜350° C., and the die is replaced in according to requirement so as to obtain the desired profile. The ultrafine-grained profile of magnesium alloys prepared in the invention has the grain sizes of from 100 to 450 nm, the tensile strength of 300˜400 MPa, and the elongation of 20˜35%. The length of the profile can be more than 10 m, meeting the needs of continuous production.
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: September 18, 2018
    Assignee: Jiangyin Biodegrade Medical Technology Co., Ltd.
    Inventors: Li Li, Yufeng Zheng, Zhen Li, Qingfu Chen, Diantao Zhang, Jingtao Li
  • Patent number: 10065866
    Abstract: Process for the joint production of sodium carbonate and sodium bicarbonate crystals, according to which: a solid powder derived from sodium sesquicarbonate, having a mean particle diameter comprised between 0.1 and 10 mm is dissolved in water; the resulting water solution is introduced into a crystallizer, wherein a first water suspension comprising sodium carbonate crystals is produced; the first water suspension is subjected to a separation, in order to produce crystals comprising sodium carbonate on the one hand, which are valorized, and a mother liquor on the other hand; and a part of the mother liquor is taken out of the crystallizer and put into contact in, a gas liquid contactor, with a gas comprising carbon dioxide, in order to produce a second water suspension comprising sodium bicarbonate crystals, which are separated and valorized. A reagent powder comprising sodium bicarbonate crystals made by such process.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: September 4, 2018
    Assignee: Solvay SA
    Inventors: Perrine Davoine, Francis M. Coustry, Jean-Paul Detournay, Kurt Allen
  • Patent number: 10053763
    Abstract: A method for producing a case-hardened martensitic stainless steel article includes: providing an article comprised, at least in part, of a martensitic stainless steel, carburizing the article within a temperature range of 1625° F.-1680° F. (885° C.-916° C.), and then carbo-nitriding the article within a temperature range of 1575° F.-1625° F. (857° C.-885° C.). An article, such as a bearing ring, comprising such a case-hardened martensitic stainless steel is also disclosed.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: August 21, 2018
    Inventors: Hitesh K. Trivedi, Frederick J. Otto, Timothy W. Piazza, Bryan A. McCoy, Rabi S. Bhattacharya
  • Patent number: 10047426
    Abstract: Disclosed are a magnesium (Mg) alloy and a manufacturing method thereof. The Mg alloy has a composition including, by weight, 4% to 10% of Sn, 0.05% to 1.0% of Ca, 0.1% to 2% of at least one element selected from the group including Y and Er, the balance of Mg, and the other unavoidable impurities. The Mg alloy includes an Mg2Sn phase having excellent thermal stability, and is capable of being heat treated at a temperature of 480° C. or more.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: August 14, 2018
    Inventors: Young Min Kim, Ha Sik Kim, Bong Sun You, Chang Dong Yim, Sung Hyuk Park
  • Patent number: 10047418
    Abstract: A method for manufacturing a high-strength and high-ductility steel includes steps in which an alloy steel is provided. The method continues with step in which the alloy steel is hot rolled, so that the microstructure of the alloy steel includes austenite, bainite and martensite. The method continues with step in which the hot-rolled alloy steel is annealed, so as to decompose bainite and martensite structures of the alloy steel into ferrite and austenite structures. The method continues with step in which the annealed alloy steel is cold rolled. The method continues with step in which the cold-rolled alloy steel is annealed, so as to manufacture a high-strength and high-ductility steel in a phase with 50% to 70% of residual austenite.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: August 14, 2018
    Inventors: Chih-Pu Chang, Delphic Chen, Chih-Hung Ou, Jui-Fan Tu, Kuo-Cheng Yang, Lung-Jen Chiang, Ming-Chin Tsai
  • Patent number: 10030288
    Abstract: A method for making an article is disclosed. The method involves first generating a digital model of the article. The digital model is inputted into an additive manufacturing apparatus comprising an energy source. The additive manufacturing apparatus applies energy from the energy source to successively applied incremental quantities of a powder to fuse the powder to form the article corresponding to the digital model. The powder includes an aluminum alloy having 90.15-95.80 wt. % aluminum, 3.00-4.50 wt. % silicon, 0.70-1.50 wt. % magnesium, 0.50-1.00 wt. % manganese, 0-0.50 wt. % iron, 0-0.10 wt. % copper, 0-0.50 wt. % titanium, 0-0.20 wt. % boron, 0-1.50 wt. % nickel, and 0-0.05 wt. % other alloying elements, based on the total weight of the aluminum alloy.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: July 24, 2018
    Inventors: Eric Karlen, William Louis Wentland, Sergey Mironets, Thomas J. Ocken, Robert Bianco
  • Patent number: 10030280
    Abstract: The present invention provides a steel sheet with chemical components including, by mass %, 0.18-0.35% of C, 1.0%-3.0% of Mn, 0.01%-1.0% of Si, 0.001%-0.02% of P, 0.0005%-0.01% of S, 0.001%-0.01% of N, 0.01%-1.0% of Al, 0.005%-0.2% of Ti, 0.0002%-0.005% of B, and 0.002%-2.0% of Cr, and the balance of Fe and inevitable impurities, wherein: by volume %, a fraction of the ferrite is 50% or more, and a fraction of a non-recrystallized ferrite is 30% or less; and Cr?/CrM is 2 or less, where Cr? is a concentration of Cr subjected to solid solution in iron carbide and CrM is a concentration of Cr subjected to solid solution in a base material, or Mn0/MnM is 10 or less, where Mn0 is a concentration of Mn subjected to solid solution in an iron carbide, and MnM is a concentration of Mn subjected to solid solution in a base material.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: July 24, 2018
    Inventors: Kunio Hayashi, Toshimitsu Aso, Toshimasa Tomokiyo
  • Patent number: 10023944
    Abstract: Systems, methods, and compositions for improved warm-forming of light metal alloys, such as aluminum alloys, magnesium alloys, or titanium alloys, are disclosed. The systems and methods relate to pulse thermal processing, engineered plastic deformation, and micro-aging processes, as well as to the application of multi-functional lubricants. The disclosed multifunctional lubricant compositions provide a number of advantages when used in warm-forming processes, and in one embodiment, include organo-titanates and magnesium hydroxide, and in other embodiments an organo-titanate, magnesium hydroxide and boron nitride.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: July 17, 2018
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Kevin S. Schnipke, Alex W. Kawczak, Philip Vais, Peter Schupska, Ryan M. Hahnlen, Joshua P. Dowd
  • Patent number: 10023927
    Abstract: A hardening tool is disclosed for producing hardened profiled shaped articles from a sheet steel material, which hardening tool has at least two tool parts which are movable relative to one another and between which a heated sheet steel material which has been preformed into a profiled shaped article and is optionally finally formed and is cooled in a hardening process, wherein the hardening tool has a mold core which, during the hardening process, is arranged in a recess of the profiled shaped article, and wherein the mold core has at least one outlet opening for the pressurization of cooling medium from a cooling medium duct on the profiled shaped article.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: July 17, 2018
    Assignees: ThyssenKrupp Steel Europe AG, ThyssenKrupp AG
    Inventors: Sascha Sikora, Jorg Gorschlüter, Thomas Flehmig
  • Patent number: 10026534
    Abstract: By using a hot-rolled steel sheet of a predetermined chemical composition, and annealing the hot-rolled steel sheet in nitrogen atmosphere at 1000° C. for 30 seconds, and then immersing in a solution of 7% HCl at 80° C. for 60 seconds to obtain a hot-rolled steel sheet having a pickling weight loss of 10 g/m2 or more and 35 g/m2 or less, it is possible to obtain a hot-rolled steel sheet for producing a non-oriented electrical steel sheet that not only has excellent magnetic properties such as iron loss properties and magnetic flux density, but also has reduced steel sheet surface defects and an excellent manufacturing yield.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: July 17, 2018
    Inventors: Hiroaki Toda, Yoshiaki Zaizen, Tadashi Nakanishi, Yoshihiko Oda
  • Patent number: 9994940
    Abstract: This high carbon steel wire rod, which has excellent drawability in addition to high strength required for a wire rod, contains 0.6-1.5% of C, 0.1-1.5% of Si, 0.1-1.5% of Mn, 0.02% or less of P (excluding 0%), 0.02% or less of S (excluding 0%), 0.03-0.12% of Ti, 0.001-0.01% of B and 0.001-0.005% of N, with solid-solved B being 0.0002% or more, solid-solved N being 0.0010% or less, and the balance being made up of iron and inevitable impurities. In addition, the content of Ti solid-solved in the steel is 0.002% by mass or more, and the content of Ti that formed carbides is 0.020% by mass or more.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: June 12, 2018
    Assignee: Kobe Steel, Ltd.
    Inventors: Hiroshi Oura, Nao Yoshihara
  • Patent number: 9988697
    Abstract: This high-strength hot-rolled steel sheet having excellent local deformability contains, in mass %, C: 0.07% to 0.20%; Si: 0.001% to 2.5%; Mn: 0.01% to 4.0%; P: 0.001% to 0.15%; S: 0.0005% to 0.03%; Al: 0.001% to 2.0%; N: 0.0005% to 0.01%; and O: 0.0005% to 0.01%; and a balance being composed of iron and inevitable impurities, in which an area ratio of bainite in a metal structure is 95% or more, at a sheet thickness center portion being a range of ? to ? in sheet thickness from the surface of the steel sheet, an average value of pole densities of the {100}<011> to {223}<110> orientation group is 4.0 or less, and a pole density of the {332}<113> crystal orientation is 5.0 or less, and a mean volume diameter of crystal grains in the metal structure is 10 ?m or less.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: June 5, 2018
    Inventors: Yoshihiro Suwa, Kazuaki Nakano, Kunio Hayashi, Riki Okamoto, Nobuhiro Fujita, Kohichi Sano
  • Patent number: 9968977
    Abstract: A method of shaping a component includes providing a plurality of work-piece blanks. The method also includes generating a contour in each work-piece blank, such that each contour is bordered by a region of material of the respective work-piece blank. The method also includes stacking the work-piece blanks such that the contour of one work-piece blank is aligned with the contours of the other blanks. The method additionally includes simultaneously annealing the region of material bordering the respective contour of each stacked work-piece blank to thereby enhance formability of the region of material. Furthermore, the method includes forming a shape in at least one of the work-piece blanks via stretching the annealed region of material bordering the respective contour to thereby shape at least one component. The component can be a structural reinforcement for a vehicle.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: May 15, 2018
    Assignee: GM Global Technology Operations LLC
    Inventors: Kevin R. Marks, Thomas M. Foreman, Tom Sherwood
  • Patent number: 9970091
    Abstract: In a method for making a wrought nickel-chromium-molybdenum alloy having homogeneous, two-phase microstructures the alloy in ingot form is subjected to a homogenization treatment at a temperature between 2025° F. and 2100° F., and then hot worked at start temperature between 2025° F. and 2100° F. The alloy preferably contains 18.47 to 20.78 wt. % chromium, 19.24 to 20.87 wt. % molybdenum, 0.08 to 0.62 wt. % aluminum, less than 0.76 wt. % manganese, less than 2.10 wt. % iron, less than 0.56 wt. % copper, less than 0.14 wt. % silicon, up to 0.17 wt. % titanium, less than 0.013 wt. % carbon, and the balance nickel.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: May 15, 2018
    Assignee: Haynes International, Inc.
    Inventors: Paul Crook, Ajit Mishra, David A. Metzler
  • Patent number: 9963764
    Abstract: A brass free from lead and possessing excellent machinability, castability, mechanical properties, etc. consists of not less than 55% by weight and not more than 75% by weight of Cu, not less than 0.3% by weight and not more than 4.0% by weight of Bi, and y % by weight of B and x % by weight of Si, y and x satisfying the following requirements: 0?x?2.0, 0?y?0.3, and y>?0.15x+0.015ab, wherein a is 0.2 when Bi is 0.3% by weight?Bi<0.75% by weight; 0.85 when Bi is 0.75% by weight?Bi<1.5% by weight; and 1 when Bi is 1.5% by weight?Bi?4.0% by weight, b is 1 when the apparent content of zinc (Zn) is not less than 37% and less than 41%; and 0.75 when the apparent content of Zn is not less than 41% and not more than 45%, the balance consisting of Zn and unavoidable impurities.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: May 8, 2018
    Assignee: Toto Ltd.
    Inventor: Toru Uchida
  • Patent number: 9957582
    Abstract: A cold-rolled sheet is provided. The cold-rolled sheet includes a steel substrate with a carbon content C0 between 0.07% and 0.5%, expressed by weight, and a metal pre-coating on at least the two principal faces of the steel substrate. The substrate has a decarburized area on the surface of each of the two principal faces. The depth p50% of the decarburized area is between 6 and 30 micrometers, and p50% is the depth at which the carbon content is equal to 50% of the content C0. The sheet does not contain a layer of iron oxide between the substrate and the metal pre-coating.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: May 1, 2018
    Assignee: ArcelorMittal
    Inventors: Juan David Puerta Velasquez, Jonas Staudte, Pascal Drillet
  • Patent number: 9957588
    Abstract: The present invention pertains to the field of metal alloy, and discloses an aluminum-zirconium-titanium-carbon grain refiner for magnesium and magnesium alloys, having a chemical composition of: 0.01%˜10% Zr, 0.01%˜10% Ti, 0.01%˜0.3% C, and Al in balance, based on weight percentage. Also, the present invention discloses the method for preparing the grain refiner. The grain refiner according to the present invention is an Al—Zr—Ti—C intermediate alloy having great nucleation ability and in turn excellent grain refining performance for magnesium and magnesium alloys, and is industrially applicable in the casting and rolling of magnesium and magnesium alloy profiles, enabling the wide use of magnesium in industries.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: May 1, 2018
    Inventors: Xuemin Chen, Qingdong Ye, Yueming Yu, Jianguo Li
  • Patent number: 9953736
    Abstract: An aluminum electric wire includes an annealing conductor that is made up of elemental wires made of an aluminum alloy containing 0.90-1.20 mass % Fe, 0.10-0.25 mass % Mg, 0.01-0.05 mass % Ti, 0.0005-0.0025 mass % B, and the balance being Al and has a tensile strength of 110 MPa or more, a breaking elongation of 15% or more, and an electric conductivity of 58% IACS or more, and an insulating material covering the conductor. The wire is produced by casting an aluminum alloy prepared by rapidly solidifying a molten aluminum alloy having the above composition, producing the wires by subjecting the alloy to plasticity processing, producing the conductor by bunching the wires, subjecting the wires or the conductor to annealing at 250° C. or higher, and then covering the conductor with the insulator.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: April 24, 2018
    Inventors: Yasuyuki Otsuka, Masanobu Yoshimura, Kotaro Maeda, Jun Yoshimoto, Masashi Kimura, Taichirou Nishikawa, Misato Kusakari, Shinichi Kitamura, Hiroaki Takai
  • Patent number: 9947446
    Abstract: The pickling loss when a hot-rolled steel sheet having a predetermined chemical composition is annealed at 1000° C. for 30 seconds in a nitrogen atmosphere and then immersed in a solution of 7% HCl at 80° C. for 60 seconds is in a range of 40 g/m2 or more and 100 g/m2 or less. A hot-rolled steel sheet for production of a non-oriented electrical steel sheet with not only excellent magnetic properties such as iron loss and magnetic flux density but also excellent recyclability and steel sheet surface appearance can thus be obtained.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: April 17, 2018
    Assignee: JFE Steel Corporation
    Inventors: Hiroaki Toda, Yoshiaki Zaizen, Tadashi Nakanishi, Yoshihiko Oda