Patents Examined by Brian D Walck
  • Patent number: 12006563
    Abstract: The present invention provides a corrosion-resistant CuZn alloy, the alloy having a Zn content of from 15 to 55% by mass, the balance being Cu and inevitable impurities, wherein a total content of Zn and Cu is 99.995% by mass or more, and wherein a number of pores is 1/cm2 or less based on optical microscopic observation.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: June 11, 2024
    Assignee: JX Metals Corporation
    Inventor: Masahiro Takahata
  • Patent number: 12000012
    Abstract: Disclosed in the present invention is a method for extracting nickel from a high matte nickel leaching residue. The method comprises: firstly, adding a crushed material of a high matte nickel leaching residue to an organic solvent in which sulfur is dissolved, heating same for reaction, and carrying out solid-liquid separation to obtain a first filtrate and a first filter residue; adding the first filter residue to a copper sulfate solution, heating same for reaction, and carrying out solid-liquid separation to obtain a second filtrate and a second filter residue; and evaporating, condensing and concentrating the second filtrate, and filtering same to obtain copper sulfate crystals and a nickel-containing filtrate. Throughout the whole reaction, only a small amount of sulfur and copper sulfate are consumed, and the organic solvent can be recycled.
    Type: Grant
    Filed: June 6, 2022
    Date of Patent: June 4, 2024
    Inventors: Haijun Yu, Yinghao Xie, Aixia Li, Xuemei Zhang, Changdong Li
  • Patent number: 11999088
    Abstract: By using a forming die having a fixed die and a movable die moving along a parting surface on the fixed die and by moving the movable die along the parting surface, to press and hold a sintered part between the movable die and the fixed die, to form a cavity around the sintered part except parts which abut on the fixed die and the movable die by the forming die, and to fill the cavity with melted material which becomes an exterior part, so that the sintered part and the exterior part are integrated by insert molding.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: June 4, 2024
    Inventors: Shinichi Takezoe, Tsuneo Maruyama, Hideo Sakai
  • Patent number: 11993850
    Abstract: A method for manufacturing a component comprising bombarding nanoparticles in a dispersion with a laser to transform the ligand and cause the nanoparticles to drop out of the dispersion and deposit onto a substrate; and bombarding additional nanoparticles in the dispersion with the laser to transform the ligand and cause the nanoparticles to drop out of the dispersion and deposit onto the nanoparticles previously deposited out of the dispersion.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: May 28, 2024
    Assignee: The Curators of the University of Missouri
    Inventors: Heng Pan, Chinmoy Podder, Wan Shou, Xiaowei Yu
  • Patent number: 11988294
    Abstract: A powder admixture useful for making a sintered valve seat insert includes a first iron-base powder and second iron-base powder wherein the first iron-base powder has a higher hardness than the second iron-base powder, the first iron-base powder including, in weight percent, 1-2 % C, 10-25 % Cr, 5-20 % Mo, 15-25 % Co, and 30-60 wt. % Fe, and the second iron-base powder including, in weight %, 1-1.5 % C, 3-15 % Cr, 5-7 % Mo, 3-6 % W, 1-1.7 % V, and 60-85 % Fe. The powder admixture can be sintered to form a sintered valve seat insert optionally infiltrated with copper.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: May 21, 2024
    Assignee: L.E. Jones Company
    Inventors: Cong Yue Qiao, David M. Doll
  • Patent number: 11987861
    Abstract: A method according to an embodiment is for recovering a valuable metal from a waste electrode material of a lithium secondary battery by using lithium carbonate. An anode-cathode mixed electrode material that has been separated by draining, crushing, screening, and sorting a waste lithium secondary battery is preprocessed. A precipitation operation performed by adding lithium carbonate (Li2CO3) to a metal melt acquired by performing sulfuric acid dissolution using sulfuric acid. A valuable metal such as nickel, cobalt, manganese, aluminum, and copper is recovered as a residue in the form of a carbonate composite, and a lithium sulfate (Li2SO4) aqueous solution including lithium is recovered as a filtrate.
    Type: Grant
    Filed: May 21, 2021
    Date of Patent: May 21, 2024
    Inventors: Suk Joon Park, Myung Gyu Lee, Jeong Sik Hong, So Yeong Byun, Gwang Seok Lee, Jong Sun Park, Beom Seok Seo, Min Woo Lee, Da Mo A Kim, Hui Sang Kim, A Ram Park
  • Patent number: 11987856
    Abstract: An ultra-high strength maraging stainless steel with nominal composition (in mass) of C?0.03%, Cr: 13.0-14.0%, Ni: 5.5-7.0%, Co: 5.5-7.5%, Mo: 3.0-5.0%, Ti: 1.9-2.5%, Si: ?0.1%, Mn: ?0.1%, P: ?0.01%, S: ?0.01%, and Fe: balance. The developed ultra-high strength maraging stainless steel combines ultra-high strength (with ?b?2000 MPa, ?0.2?1700 MPa, ??8% and ??40%), high toughness (KIC?83 MPa·m1/2) and superior salt-water corrosion resistance (with pitting potential Epit?0.15 (vs SCE)). Therefore, this steel is suitable to make structural parts that are used in harsh corrosive environments like marine environment containing chloride ions, etc.
    Type: Grant
    Filed: May 5, 2023
    Date of Patent: May 21, 2024
    Assignees: The Boeing Company, Institute of Metal Research
    Inventors: Jialong Tian, Ke Yang, Wei Wang, Yiyin Shan, Wei Yan
  • Patent number: 11987859
    Abstract: Energy-efficient production of a ferritic hot-rolled strip (6) in an integrated casting-rolling plant (1), which modifies the known processes for producing a ferritic hot-rolled strip (6) in an integrated casting-rolling plant (1) so that the ferritic hot-rolled strip (6) can be produced significantly more energy-efficiently but nevertheless has good metallurgical properties and a good surface quality.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: May 21, 2024
    Inventors: Heinz Fürst, Simon Grosseiber, Thomas Lengauer, Michael Zahedi
  • Patent number: 11987865
    Abstract: A high hardness and temperature-resistant alloy is disclosed, and comprises 10-40 atomic percent Co, 30-56 atomic percent Cr, 10-40 atomic percent Ni, 6-13 atomic percent C, 0-8 atomic percent Mo, and 0-8 atomic percent W. Moreover, the elemental composition of the high hardness and temperature-resistant alloy can further comprise at least one additive element, such as Pb, Sn, Ge, Si, Zn, Sb, P, B, Mg, Mn, V, Nb, Ti, Zr, Y, La, Ce, Al, Ta, Cu, and Fe. Experimental data reveal that, the high hardness and temperature-resistant alloy can still show a property of hardness greater than HV100 in 900 degrees Celsius. Therefore, experimental data have proved that the high hardness and temperature-resistant alloy has a significant potential for applications in the manufacture of hot working die metals, components (e.g., turbine blade) for high temperature applications, and devices (e.g., aeroengine) for high temperature applications.
    Type: Grant
    Filed: June 18, 2021
    Date of Patent: May 21, 2024
    Inventor: Jien-Wei Yeh
  • Patent number: 11975390
    Abstract: Provided are a method for producing indium tin oxide particles and a method for producing a curable composition, the methods including a step of obtaining a precursor solution including indium and tin by heating indium acetate and tin acetate in a solvent including a carboxylic acid and having 6 to 20 carbon atoms, and a step of obtaining a reaction solution including indium tin oxide particles by dropwise adding the obtained precursor solution to a solvent having a hydroxy group and having 14 to 22 carbon atoms, which has a temperature of 230° C. to 320° C., in which an acetic acid concentration in the precursor solution is in a range of 0.5% by mass to 6% by mass.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: May 7, 2024
    Inventors: Masahiro Takata, Atsushi Tanaka
  • Patent number: 11976343
    Abstract: An aluminium based alloy, and a method for production of components by additive manufacturing (AM) or other rapid solidification process with the alloy, is based on the alloy having a composition with from 2.01 wt % to 15.0 wt % manganese, from 0.3 wt % to 2.0 wt % scandium, with a balance apart from minor alloy elements and incidental impurities of aluminium.
    Type: Grant
    Filed: July 28, 2023
    Date of Patent: May 7, 2024
    Inventors: Paul Rometsch, Xinhua Wu, Qingbo Jia
  • Patent number: 11970748
    Abstract: A process to decarburize steel can include contacting molten iron-containing material with a carbon dioxide in an electric arc furnace, a ladle furnace, or a vacuum degassing unit, or a combination thereof to decarburize at least a portion of the molten iron-containing material. The molten iron-containing material is preferably molten iron oxide.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: April 30, 2024
    Inventor: Mansour Al-Harbi
  • Patent number: 11970753
    Abstract: A method for producing an ultra-high-strength hot-rolled structural steel includes producing a steel alloy with a carbon content not greater than 0.2%, avoiding a diffusive transformation of the austenite by achieving a transformation delay through the addition of manganese, chromium, and boron, and casting the steel alloy. The cast steel alloy is heated and hot rolled to form a steel strip which is then immediately hardened and mechanically straightened to produce mobile dislocations, wherein the boron, manganese and chromium delay diffusive transformation from an austenite structure to achieve formation of a martensite structure during the hardening. The steel strip is then annealed at a temperature between 100 and 200° C.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: April 30, 2024
    Assignee: voestalpine Stahl GmbH
    Inventors: Markus Sonnleitner, Martin Klein, Gerhard Hubmer, Helmut Spindler
  • Patent number: 11959160
    Abstract: Disclosed is a copper-niobium alloy for a medical biopsy puncture needle. A needle core and/or needle tube of the puncture needle are/is made of the copper-niobium alloy. The copper-chromium alloy includes the following components by mass: 5?Nb?15 and the balance of Cu. A copper alloy with designed components is obtained by combining a diamagnetic material Cu with paramagnetic Nb, and compared with existing medical stainless steel and titanium alloy, the copper alloy has greatly reduced magnetic susceptibility, and specifically, the artifact area and volume are also significantly reduced. In addition, the blank of use of the copper alloy in medical biopsy paracentesis is filled.
    Type: Grant
    Filed: July 8, 2022
    Date of Patent: April 16, 2024
    Assignee: University of Shanghai for Science and Technology
    Inventors: Xiaohong Chen, Xiaofei Liang, Honglei Zhou, Jian Zhao, Ping Liu, Shaoli Fu
  • Patent number: 11959149
    Abstract: Provided are a grain-oriented electrical steel sheet having excellent iron loss property without using magnetic domain refining treatment and an iron core produced using the same. The steel sheet comprises: a predetermined chemical composition; and a steel microstructure in which: crystal grains are made up of coarse secondary recrystallized grains of 5.0 mm or more, fine grains of more than 2.0 mm and less than 5.0 mm contained at a frequency of 0.2 to 5 grains per cm2, and very fine grains of 2.0 mm or less; for each coarse secondary recrystallized grain extending through the sheet in a thickness direction, an area ratio of a region in which projected surfaces of exposed areas of the coarse secondary recrystallized grain on a front side and a back side of the sheet coincide with each other to each of the exposed areas is 95% or more.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: April 16, 2024
    Inventors: Takeshi Imamura, Makoto Watanabe
  • Patent number: 11959153
    Abstract: A process for direct reduction of iron ore in a solid state includes exposing briquettes of iron ore fragments and biomass to electromagnetic energy under anoxic conditions and generating heat within iron ore in the briquettes. The iron ore is reduced in a solid state within the briquettes, and the biomass provides a source of reductant.
    Type: Grant
    Filed: September 6, 2022
    Date of Patent: April 16, 2024
    Inventor: Michael Buckley
  • Patent number: 11952638
    Abstract: A direct reduction method/system, including: adding variable amounts of natural gas, hydrogen, and a carbon-free oxidizing gas to a feed gas stream upstream of a reformer; reforming the feed gas stream in the reformer to form a reformed gas stream, and delivering the reformed gas stream to a shaft furnace, where the reformed gas stream is used to reduce a metallic ore material to a direct reduced metallic material. The feed gas stream includes a top gas stream recycled from the shaft furnace. Optionally, the carbon-free oxidizing gas includes steam and the method further includes controlling a steam flow rate of the steam to maintain a maximum k-factor value of the feed gas stream of 0.74 or lower. Optionally, the variable amount of hydrogen is selected to replace 20-90% of the natural gas by fuel value. The variable amount of hydrogen is selected based upon an available supply of hydrogen.
    Type: Grant
    Filed: September 23, 2020
    Date of Patent: April 9, 2024
    Assignee: Midrex Technologies, Inc.
    Inventors: Keith Marshall Bastow-Cox, Enrique Jose Cintron, Gregory Darel Hughes
  • Patent number: 11952645
    Abstract: Provided is a refined Goss-grain aluminum alloy plate and a preparation method thereof. The refined Goss-grain aluminum alloy plate includes the following compositions: 3.7-4.8 wt % of Cu, 1.2-1.7 wt % of Mg, 0.3-0.8 wt % of Mn, 0.03-0.10 wt % of Ti, and the balance of Al. The refined Goss-grain aluminum alloy plate is prepared by a method including subjecting an Al—Cu—Mg alloy ingot with a certain composition to a homogenizing at a temperature of 470-505° C., a hot rolling at high temperature of 465-495° C. with a large deformation of 80%-98% and a high final temperature, then directly to a cold rolling with a small or medium deformation of 5% to 50%, and then to a recrystallization and annealing treatment at a temperature of 300-450° C., a solid solution treatment at a temperature of 460-505° C., and a natural aging treatment for at least 96 hours.
    Type: Grant
    Filed: July 15, 2022
    Date of Patent: April 9, 2024
    Assignees: Central South University, Changsha Xingxiao Material Technology Co., Ltd.
    Inventors: Zhiyi Liu, Fei Liu, Guangyu He
  • Patent number: 11952651
    Abstract: An Fe-based amorphous alloy ribbon reduced in iron loss, less deformed, and highly productive in a condition of a magnetic flux density of 1.45 T is provided. One aspect of the present disclosure provides an Fe-based amorphous alloy ribbon having first and second surfaces, and is provided with continuous linear laser irradiation marks on at least the first surface. Each linear laser irradiation mark is formed along a direction orthogonal to a casting direction of the Fe-based amorphous alloy ribbon, and has unevenness on its surface. When the unevenness is evaluated in the casting direction, a height difference HL×width WA calculated from the height difference between a highest point and a lowest point in a thickness direction of the Fe-based amorphous alloy ribbon and the width WA which is a length of the linear irradiation mark on the first surface is 6.0 to 180 ?m2.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: April 9, 2024
    Assignee: PROTERIAL, LTD.
    Inventors: Hajime Itagaki, Morifumi Kuroki, Makoto Sasaki, Shin Nakajima
  • Patent number: 11946108
    Abstract: Foundry coke products, and associated methods and systems for melting iron in a cupola furnace with the coke products are disclosed herein. A representative method can include receiving a population of coke products and iron in a cupola furnace, and melting the iron in the cupola furnace to form molten iron having a carbon content higher than a carbon content of the received iron. The coke products can comprise (i) an elongate shape including a length:width dimension of at least 1.5:1, (ii) an ash fusion temperature of no more than 2400° F., and/or (iii) a coke reactivity index (CRI) of at least 30%.
    Type: Grant
    Filed: November 4, 2022
    Date of Patent: April 2, 2024
    Inventors: John Francis Quanci, John Michael Richardson, Jonathan Hale Perkins