Patents Examined by Brian D Walck
  • Patent number: 11566300
    Abstract: A stud-weldable rebar and a method for making the rebar are disclosed. The rebar has a steel body with a weld end and a diameter that is substantially uniform along a length of the body. A tip portion at the weld end includes a hardened zone and a base portion is formed of the remaining steel body. The hardened zone has a hardness that is about 1.5-3.0 times greater than a hardness of the base portion. Induction hardening is used to form the hardened zone.
    Type: Grant
    Filed: October 26, 2021
    Date of Patent: January 31, 2023
    Inventors: Peter A. Workman, Timothy A. White, Samuel T. Ray
  • Patent number: 11565317
    Abstract: A polycrystalline super hard construction has a first region having a body of thermally stable polycrystalline super hard material having a plurality of intergrown grains of super hard material; a second region forming a substrate having a hard phase and a binder phase; and a third region interposed between the first and second regions. The third region includes a composite material having a first phase comprising a plurality of non-intergrown grains of super hard material, and a matrix material. A fourth region interposed between the second and third region has a major proportion having one or more components of the binder material of the second region, and one or more reaction products between the binder material of the second region and one or more components of the third region.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: January 31, 2023
    Assignee: Element Six (UK) Limited
    Inventors: Rachael Fiona Ambury, Nedret Can, Thomasz Zbyszko Rybak, Raymond Anthony Spits, Changzheng Ji
  • Patent number: 11560610
    Abstract: A copper alloy for valve seats, and more particularly a copper alloy for valve seats with improved wear resistance, contains 12 to 24% by weight of Ni, 2 to 4% by weight of Si, 7 to 13% by weight of Cr, 20 to 35% by weight of Fe, and a balance of Cu and other impurities.
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: January 24, 2023
    Inventors: Min Woo Kang, Soon Woo Kwon, Hyun Ki Kim, Chung An Lee, Seung Hyun Hong, Young Nam Kim
  • Patent number: 11555232
    Abstract: To provide an austenitic stainless steel material having a high creep strength and a high creep ductility even in a high-temperature environment at 800° C. or more. An austenitic stainless steel material according to the present disclosure has a chemical composition that includes, in mass %: C: 0.060% or less; Si: 1.0% or less; Mn: 2.00% or less; P: 0.0010 to 0.0400%; S: 0.010% or less; Cr: 10 to 25%; Ni: 25 to 45%; Nb: 0.2 to 2.0%; W: 2.5 to 6.0%; B: 0.0010 to 0.0100%: Al: 2.5 to 4.5%; and the balance being Fe and impurities, and satisfies Formulae (1) and (2), and the sum of the content of dissolved Nb and the content of dissolved W is 3.2 mass % or more. (W/184+Nb/93)/(C/12)?5.5??(1) (W/184+Nb/93)/(B/11)?450??(2) In Formulae (1) and (2), the content in mass % of the corresponding element is substituted for each symbol of element.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: January 17, 2023
    Inventors: Nao Otaki, Norifumi Kochi, Takahiro Izawa, Naoki Sawawatari
  • Patent number: 11549162
    Abstract: Provided is an alloy steel manufacturing method, the method including: preparing a manganese-containing first molten ferroalloy; preparing a chromium-containing second molten alloy; preparing molten steel; mixing the first molten ferroalloy and the second molten ferroalloy to manufacture third molten ferroalloy; and mix pouring the third molten ferroalloy and the molten steel to manufacture an alloy steel, wherein the phosphorous concentration in the molten steel may efficiently be controlled by reducing the converter end point temperature of the molten steel to improve a phosphorous control capacity during converter refining.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: January 10, 2023
    Assignee: POSCO CO., LTD
    Inventors: Woong Hee Han, Yeo Sun Yun, Soo Chang Kang, Jung Hwan Son
  • Patent number: 11542566
    Abstract: When performing dephosphorization treatment of hot metal by adding a refining agent as a lime source and an oxygen source (dephosphorizing agent(s) and a gaseous oxygen source into the hot metal accommodated in a hot metal holding container, the refining agent used is a refining agent having an Ig-loss value of from 4.0% by mass to 35.0% by mass and including 60% by mass or more of quicklime.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: January 3, 2023
    Assignee: JFE Steel Corporation
    Inventors: Yusuke Fujii, Yoshie Nakai, Mikihiro Mori, Takahiko Maeda, Naoki Kikuchi, Noritaka Nishiguchi
  • Patent number: 11545277
    Abstract: Bendability of a copper alloy wire is improved without decrease in an electrical conductivity of the copper alloy wire made of copper alloy containing zirconium. A cable includes: a two-core stranded wire formed by intertwining two electrical wires made of a conductor and an insulating layer covering the conductor; a filler formed around the two-core stranded wire; and a sheath formed around the filler and the electrical wire. The conductor is a copper alloy wire in which a precipitate containing the zirconium disperses, and has a crystal gain diameter that is equal to or smaller than 1 ?m, an electrical conductivity that is equal to or higher than 87% IACS, and a tensile stress that is equal to or larger than 545 MPa.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: January 3, 2023
    Assignee: Hitachi Metals, Ltd.
    Inventors: Kazuhisa Takahashi, Shohei Hata, Hiromitsu Kuroda, Toru Sumi, Kazuya Nishi, Keisuke Fujito, Takayuki Tuji
  • Patent number: 11535920
    Abstract: Disclosed is a method of producing a copper alloy sheet material, wherein the copper alloy sheet material contains nickel (Ni) 0.5 to 1.5% by weight; cobalt (Co) 0.3 to 1.5% by weight; silicon (Si) 0.35 to 0.8% by weight; chromium (Cr) 0.05 to 0.5% by weight; a balance amount of copper (Cu); and inevitable impurities. Further, disclosed is a copper alloy sheet material produced using the method.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: December 27, 2022
    Inventors: Jiin Hwang, Youngchul Choi, Jeongmin Cha, Jangho Ju
  • Patent number: 11535906
    Abstract: The present disclosure provides a method that ensures easily manufacturing an alloy ribbon piece having excellent soft magnetic properties. The method is a method for manufacturing an alloy ribbon piece obtained by crystallizing an amorphous alloy ribbon piece and including: increasing a temperature of the amorphous alloy ribbon piece to a crystallization starting temperature; and increasing the temperature of the amorphous alloy ribbon piece from the crystallization starting temperature to a crystallization process termination temperature equal to or less than a crystallization completion temperature.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: December 27, 2022
    Inventors: Osamu Yamashita, Shinichi Hiramatsu
  • Patent number: 11534806
    Abstract: The present disclosure provides a high-efficient rolling process for magnesium alloy sheet. Parameters of the rolling process are: the rolling speed of each rolling pass is 10-50 m/min, the rolling reduction of each rolling pass is controlled to be 40-90%, and both the preheating temperature before rolling and the rolling temperature of each rolling pass are 250-450° C. The present disclosure also provides a preparation method for magnesium alloy sheet, comprising: 1) preparing rolling billets; 2) high-efficient hot rolling; and 3) performing annealing. The rolling process can improve the mechanical performance especially, the strength and ductility of the sheet.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: December 27, 2022
    Assignee: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Shiwei Xu, Weineng Tang, Jianfeng Nie, Mingzhe Bian, Haomin Jiang, Pijun Zhang
  • Patent number: 11530466
    Abstract: A low thermal expansion alloy having a high rigidity and a low thermal expansion coefficient comprising, by mass %, C: 0.040% or less, Si: 0.25% or less, Mn: 0.15 to 0.50%, Cr: 8.50 to 10.0%, Ni: 0 to 5.00%, and Co: 43.0 to 56.0%, S: 0 to 0.050%, and Se: 0 to 0.050% and having a balance of Fe and unavoidable impurities, the contents of Ni, Co, and Mn represented by [Ni], [Co], and [Mn] satisfying 55.7?2.2[Ni]+[Co]+1.7[Mn]?56.7 and the structure being an austenite single phase.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: December 20, 2022
    Inventors: Naoki Sakaguchi, Haruyasu Ohno
  • Patent number: 11524486
    Abstract: It is an object to provide a method for producing a substrate for epitaxial growth having a higher degree of biaxial crystal orientation without forming an irregular part a3. The method for producing a substrate for epitaxial growth comprising a step of laminating a metal base material and a copper layer having an fcc rolling texture by surface-activated bonding, a step of applying mechanical polishing to the copper layer, and a step of carrying out orientation heat treatment of the copper layer, wherein the copper layer is laminated in such a way that, when ratios of the (200) plane of the copper layer before laminated and of the copper layer after laminated when measured by XRD are I0Cu and I0CLAD, respectively and ratios of the (220) plane of the copper layer before laminated and of the copper layer after laminated are I2Cu and I2CLAD, respectively, I0Cu<20%, I2Cu=70 to 90%, and I0CLAD<20%, I2CLAD=70 to 90% and I0CLAD?I0Cu<13%.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: December 13, 2022
    Inventors: Teppei Kurokawa, Yusuke Hashimoto, Hironao Okayama
  • Patent number: 11525172
    Abstract: A nickel-niobium intermetallic alloy contains, in weight percent, silicon from about 1.5 to about 3.5 percent; chromium from 5 to about 15 percent; nickel from about 45 to about 75 percent; niobium from about 14 to about 30 percent; cobalt up to about 7 percent; and iron up to about 10 percent; wherein the nickel plus niobium content is about 70 to about 90 percent and the total silicon, chromium, cobalt and iron content is about 10 to about 30 percent. The alloy can have a cast microstructure of at least 95 volume percent intermetallic phases and no more than about 5 volume percent solid solution phases. The intermetallic phases can include rod-like intermetallic phases of Ni3Nb and Ni8Nb7. The microstructure can be a lamellar microstructure and/or the microstructure can have less than 5 volume percent Ni—Fe and Ni—Co rich intermetallic phases.
    Type: Grant
    Filed: December 1, 2021
    Date of Patent: December 13, 2022
    Assignee: L.E. Jones Company
    Inventors: Cong Yue Qiao, David M. Doll
  • Patent number: 11512380
    Abstract: The present invention provides a method for manufacturing more beautiful black coated steel sheets by uniformly blackening the coating layer. Specifically, the present invention provides a method for manufacturing black coated steel sheets, which brings Zn—Al—Mg alloy coated steel sheets (1) into contact with steam in a closed container (10), wherein said closed container (10) can maintain a predefined internal pressure through variable control of the amount of steam flowing into said closed container (10) and/or the amount of steam flowing out of said closed container (10), and in said closed container (10) that can maintain said predefined pressure, said Zn—Al—Mg alloy coated steel sheets (1) have contact with the steam introduced into said closed container (10).
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: November 29, 2022
    Inventors: Masaki Yamamoto, Tadashi Nakano, Ichiro Takahashi, Hiroyuki Nakamizo, Toshiaki Sato, Yoshinobu Kurisu, Yuuki Sakuraba, Yoshitaka Yukura, Tsutomu Ohta, Shinichi Kajimoto, Noboru Suzuki, Masahiko Tsuchiyama, Yuusuke Murai
  • Patent number: 11512371
    Abstract: Disclosed are a BCC dual phase refractory superalloy with high phase stability and a manufacturing method therefor, the alloy comprising one or more of Ti, Zr, and Hf as Group 4 transition metals, one or more of Na and Ta as Group 5 transition metals, and Al, and having a structure of a BCC phase, wherein the BCC phase is composed of a disordered BCC phase and an ordered BCC phase, and wherein the ordered BCC phase is formed by allowing Al, which is a BCC phase forming element, to be soluted in an area of the BCC phase where the contents of the Group 5 transition metals are more than those of the Group 4 transition metals, so that the present disclosure provides a BCC dual phase refractory superalloy with high phase stability, characterized in that when a BCC dual phase with the ordered BCC phase and the disordered BCC phase separated from each other is formed by aging, the aging condition is precisely controlled through the apex temperature (Tc) of the BCC phase miscibility gap, expressed by (Equation 1) bel
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: November 29, 2022
    Inventors: Eun Soo Park, Sang Jun Kim, Ji Young Kim, Hyun Seok Oh, Kook Noh Yoon
  • Patent number: 11512370
    Abstract: This free-cutting copper alloy contains Cu: 58.5 to 63.5%, Si: more than 0.4% and 1.0% or less, Pb: 0.003 to 0.25%, and P: 0.005 to 0.19%, with the remainder being Zn and inevitable impurities, a total amount of Fe, Mn, Co and Cr is less than 0.40%, a total amount of Sn and Al is less than 0.40%, a relationship of 56.3?f1=[Cu]?4.7×[Si]+0.5×[Pb]?0.5×[P]?59.3 is satisfied, constituent phases of a metal structure have relationships of 20?(?)?75, 25?(?)?80, 0?(?)<2, 20?(?)1/2×3+(?)×(?0.5×([Si])2+1.5×[Si])?78, and 33?(?)1/2×3+(?)×(?0.5×([Si])2+1.5×[Si])+([Pb])1/2×33+([P])1/2×14, and a compound including P is present in ? phase.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: November 29, 2022
    Inventors: Keiichiro Oishi, Kouichi Suzaki, Hiroki Goto
  • Patent number: 11512369
    Abstract: A method for manufacturing an ingot made of titanium-based metallic compound, includes providing raw material fragments; melting the raw material fragments into a liquid metal in at least one basin; keeping in the molten state the liquid metal in the at least one basin; pouring the liquid metal from the at least one basin into a crucible by overflow from the at least one basin into the crucible; forming an ingot by cooling of the liquid metal into the crucible; wherein the method further includes preheating the raw material fragments before the melting of the raw material fragments with a preheating temperature higher than or equal to 75% of the liquidus temperature of the raw material fragments, and lower less than the liquidus temperature of the raw material fragments.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: November 29, 2022
    Inventors: Bruno Vitorino Lopes, Laurent Ferrer
  • Patent number: 11504768
    Abstract: A method for producing hard metal powder suitable for manufacturing hard metal products including metal carbides and a binder is provided. An easy to carry out method that provides high quality hard metal powder includes: a) dissolving in water, water soluble raw materials and a binder source to form an aqueous solution, b) drying the aqueous solution to form a precursor powder having the raw materials homogenously distributed throughout the precursor powder, c) decomposing the precursor powder by heating the powder in an inert atmosphere to remove gas evolved in the decomposition of the raw materials, d) grinding the precursor powder and mixing it with a liquid media to produce a suspension, e) spray drying the suspension to agglomerate the precursor powder, and f) heat treating the agglomerated precursor powder to form a hard metal powder containing agglomerates of carbides evenly distributed and bonded to a metallic matrix.
    Type: Grant
    Filed: February 16, 2018
    Date of Patent: November 22, 2022
    Inventors: Juha Lagerbom, Marjaana Karhu, Hanna-Mari Sinilehto, Ulla Kanerva
  • Patent number: 11504770
    Abstract: Systems and methods are disclosed for fabricating a metal or ceramic component using a 3D printer. An entire 3D printed piece, including both the metal or ceramic component and one or more support structures, is created of a first metal or ceramic material. A sensitization layer is applied to all or part of the 3D printed piece to chemically alter portions of the first metal or ceramic material near the surface making those portions of the material more sensitive to the etching process. The etching process causes the affected material to deplete and separates the component from the support structures without requiring mechanical machining.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: November 22, 2022
    Inventors: Owen Hildreth, David Wright, Abdalla Nassar, Tim Simpson, Christopher Lefky
  • Patent number: 11505858
    Abstract: Provided is a Zn—Al—Mg-based alloy-plated steel material that can be used in automobiles and home appliances and the like and, more particularly, to a Zn—Al—Mg-based alloy-plated steel material that can suppress the generation of cracks in a plating layer that are generated during processing.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: November 22, 2022
    Inventors: Il-Ryoung Sohn, Tae-Chul Kim, Jong-Sang Kim