Patents Examined by Adil A. Siddiqui
  • Patent number: 12214423
    Abstract: A high-energy beam additive manufacturing forming device and forming method, comprising a magnetic field unit for assisting additive forming, and further comprising a forming base (6) for placing a material (12) to be processed, and a high-energy beam generation device which emits a high-energy beam, acts on the material (12) to be processed and forms a molten pool (15). The magnetic field unit comprises a first magnetic field generating device (7), and the first magnetic field generating device (7) comprises an induction coil (20) provided below the molten pool (15). The first magnetic field generating device (7) is detachably provided below a surface, used for containing the material (12) to be processed, of the forming base (6); second magnetic field generating devices (16) are provided above the forming base (6).
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: February 4, 2025
    Assignee: SHANGHAI UNIVERSITY
    Inventors: Zhongming Ren, Jiang Wang, Chaoyue Chen, Sansan Shuai, Tao Hu, Ruixin Zhao, Wei Liu
  • Patent number: 12211633
    Abstract: What is provided is a non-oriented electrical steel sheet having a chemical composition in which, by mass %, C: 0.010% or less, Si: 1.50% to 4.00%, sol. Al: 0.0001% to 1.0%, S: 0.010% or less, N: 0.010% or less and one or a plurality of elements selected from the group consisting of Mn, Ni, Co, Pt, Pb, Cu and Au: 2.50% to 5.00% in total with a remainder including Fe and impurities, in which a recrystallization rate is 1% to 99% in a metallographic structure, a sheet thickness is 0.50 mm or less, and, in the case of measuring a magnetic flux density B50 after annealing the non-oriented electrical steel sheet at 800° C. for two hours, a magnetic flux density B50 in a 45° direction with respect to a rolling direction is 1.75 T or more.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: January 28, 2025
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Tesshu Murakawa, Miho Tomita, Hiroshi Fujimura, Satoshi Kano
  • Patent number: 12208471
    Abstract: A material includes a plurality of supercooled micro-capsules each including a metallic core in a liquid state at a temperature below a solidification temperature of the metallic core and further includes a metallic shell surrounding each respective metallic core. A plurality of alloyed metallic particles and flux are mixed with the plurality of supercooled micro-capsules to form a solder paste. Upon heating the solder paste, the plurality of alloyed particles melt. As the metallic shells destabilize, the liquid metallic cores interdiffuse with the melted alloyed particles forming a new alloy that has a higher melting temperature than the melting temperature of the alloyed metallic particles.
    Type: Grant
    Filed: December 13, 2022
    Date of Patent: January 28, 2025
    Assignee: THE INDIUM CORPORATION OF AMERICA
    Inventors: Martin Thuo, Ian Tevis, Dana Drochner
  • Patent number: 12203148
    Abstract: This hot-rolled steel sheet has a predetermined chemical composition, in a microstructure at a ¼ position of a sheet thickness in a sheet thickness direction from a surface, a primary phase is bainite, a secondary phase is martensite or a martensite-austenite mixed phase, an average grain size of the secondary phase is 1.5 ?m or less, an average grain size of particles having grain diameters that are largest 10% or less out of all particles in the secondary phase is 2.5 ?m or less, a pole density in a (110)<112> orientation is 3.0 or less, and, in a microstructure from the surface to a 1/16 position of the sheet thickness in the sheet thickness direction from the surface, a pole density in a (110)<1-11> orientation is 3.0 or less.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: January 21, 2025
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Daisuke Ito, Shohei Yabu, Takeshi Toyoda
  • Patent number: 12205739
    Abstract: A method for producing a bonded magnet, comprising: (i) low-shear compounding of a thermoplastic polymer and magnetic particles to form an initial homogeneous mixture thereof; (ii) feeding the initial homogeneous mixture into a plasticator comprising a low-shear single screw rotating unidirectionally toward a die orifice and housed within a heated barrel to result in heating of the initial homogeneous mixture until the thermoplastic polymer melts and forms a further homogeneous mixture, wherein said further homogeneous mixture is transported within threads of the single screw towards the die orifice and exits the die orifice as a solid pellet; (iii) conveying the solid pellet into a mold and compression molding the pellet in the mold, to form the bonded magnet, wherein the bonded magnet possesses a magnetic particle loading of at least 80 vol % and exhibits one or more magnetic properties varying by less than 5% throughout the bonded magnet.
    Type: Grant
    Filed: November 18, 2021
    Date of Patent: January 21, 2025
    Assignees: UT-Battelle, LLC, University of Tennessee Research Foundation
    Inventors: Uday Kumar Vaidya, Mariappan Parans Paranthaman, Vlastimil Kunc, Ahmed A. Hassen
  • Patent number: 12203146
    Abstract: A wire for out-of-furnace treatment of metallurgical melts comprises a metallic sheath which encloses a core comprising at least one element selected from the group consisting of Ca, Ba, Sr, Mg, Si and Al, wherein at least one layer of a composite coating is applied to an inner and/or outer surface of said sheath, which coating consists of a lacquer paint material and contains high-melting ultrafine particles selected from compounds of metal carbides and/or nitrides and/or carbonitrides and/or silicides and/or borides. The composite coating comprises a protector material, for which ferroalloys and/or flux agents are used. The metals contained in the high-melting compounds are titanium and/or tungsten and/or silicon and/or magnesium and/or niobium and/or vanadium. Said coating is applied evenly onto the surface of the sheath.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: January 21, 2025
    Assignee: RESEARCH AND DEVELOPMENT CENTER NPP, LIMITED LIABILITY COMPANY
    Inventors: Anton Iakovlevich Dynin, Igor Valerevich Bakin, Viktor Vladimirovich Novokreshchenov, Rinat Gilemovich Usmanov, Artem Andreevich Tokarev, Oleg Grigorevich Ryss
  • Patent number: 12195819
    Abstract: The high-strength thin steel sheet has a chemical composition containing C, Si, Mn, P, S, Al, and N, with the balance being Fe and inevitable impurities, and a complex structure containing ferrite, tempered martensite, and bainite, where a volume fraction of a total of tempered martensite and bainite containing five or more carbides with a particle size of 0.1 ?m or more and 1.0 ?m or less in a grain with respect to a total of the tempered martensite and the bainite is 85% or more, and C mass % and Mn mass % in a region of 20 ?m or less in a thickness direction from a surface of the steel sheet are each 20% or less with respect to C mass % and Mn mass % in a region of 100 ?m or more and 200 ?m or less from the surface of the steel sheet.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: January 14, 2025
    Assignee: JFE STEEL CORPORATION
    Inventors: Katsutoshi Takashima, Takeshi Yokota
  • Patent number: 12195831
    Abstract: What is provided is a non-oriented electrical steel sheet having a chemical composition in which, by mass %, C: 0.010% or less, Si: 1.50% to 4.00%, sol. Al: 0.0001% to 1.0%, S: 0.010% or less, N: 0.010% or less, one or a plurality of elements selected from the group consisting of Mn, Ni, Co, Pt, Pb, Cu and Au: 2.50% to 5.00% in total are contained and a remainder includes Fe and impurities, in which a sheet thickness is 0.50 mm or less, and, in an arbitrary cross section, when an area ratio of {100} crystal grains is indicated by Sac, an area ratio of {110} crystal grains is indicated by Sag, and an area ratio of the {100} crystal grains in a region of up to 20% from a side where a KAM value is high is indicated by Sbc, Sac>Sbc>Sag and 0.05>Sag are satisfied.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: January 14, 2025
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Tesshu Murakawa, Miho Tomita, Hiroshi Fujimura, Satoshi Kano
  • Patent number: 12188111
    Abstract: An austenitic stainless steel material is provided that has high creep strength even when used at an average operation temperature of more than 600 to 750° C. after welding with higher heat input, and furthermore, has excellent stress relaxation cracking resistance even after use for a long time period at the average operation temperature after welding with higher heat input. The steel material has a chemical composition which consists of, in mass %, C: 0.030% or less, Si: 1.50% or less, Mn: 2.00% or less, P: 0.045% or less, S: 0.0300% or less, Cr: 15.00 to 25.00%, Ni: 8.00 to 20.00%, N: 0.050 to 0.250%, Nb: 0.10 to 1.00%, Mo: 0.05 to 5.00%, and B: 0.0005 to 0.0100%, with the balance being Fe and impurities, and a ratio of the dissolved N amount (mass %) with respect to the content of N (mass %) in the steel material is 0.40 to 0.90.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: January 7, 2025
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Takahiro Osuki, Shinnosuke Kurihara, Kana Jotoku, Yuhei Suzuki, Shohgo Aota
  • Patent number: 12188104
    Abstract: The present invention related to a structural steel sheet having excellent seawater resistance and having excellent corrosion resistance in environments in which corrosion is accelerated by seawater, and a method for manufacturing same.
    Type: Grant
    Filed: November 27, 2020
    Date of Patent: January 7, 2025
    Assignee: POSCO
    Inventor: Jin-Ho Park
  • Patent number: 12179265
    Abstract: Metal composites, tooling and methods of additively manufacturing these are disclosed. Metal objects and structures as provided herein are additively manufactured from metal having an infill pattern infiltrated with a metal powder. Also provided herein are methods of forming such objects and structures. Methods include additively manufacturing a metal structure having an interior printed using an infill. Steps can further include infiltrating the printed infill of the structure with a powder metal thereby forming a composite.
    Type: Grant
    Filed: October 7, 2021
    Date of Patent: December 31, 2024
    Assignee: MARKFORGED, INC.
    Inventors: Maxim Seleznev, Joseph Roy-Mayhew
  • Patent number: 12181012
    Abstract: A damper spring having an excellent fatigue limit is provided. A damper spring according to the present embodiment includes a nitrided layer formed in an outer layer, and a core portion that is further inward than the nitrided layer. The chemical composition of the core portion consists of, in mass %, C: 0.53 to 0.59%, Si: 2.51 to 2.90%, Mn: 0.70 to 0.85%, P: 0.020% or less, S: 0.020% or less, Cr: 1.40 to 1.70%, Mo: 0.17 to 0.53%, V: 0.23 to 0.33%, Cu: 0.050% or less, Ni: 0.050% or less, Al: 0.0050% or less, Ti: 0.050% or less, N: 0.0070% or less, and Nb: 0 to 0.020%, with the balance being Fe and impurities. In the core portion, a number density of V-based precipitates having a maximum diameter ranging from 2 to 10 nm is 500 to 8000 pieces/?m2.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: December 31, 2024
    Assignees: NIPPON STEEL CORPORATION, AISIN CORPORATION, NHK SPRING CO., LTD., NIPPON STEEL SG WIRE CO., LTD.
    Inventors: Shinya Teramoto, Yutaka Neishi, Michimasa Aono, Shuji Kozawa, Yoichi Oi, Naoki Takabayashi, Junji Tanaka, Fumio Takahashi, Shigekazu Nishimoto, Mitsuhiro Kondo, Tatsuro Ochi, Shoichi Suzuki
  • Patent number: 12173383
    Abstract: A continuous process for converting metal compound particles into a mixture of elemental metals. Metal compound particles and a reductant are introduced into an ultra-high temperature reaction zone having a temperature greater than 2,700° C. and an oxygen content less than 3 vol. %. The metal compound particles have particle sizes of d90 500 ?m. The metal compound particles have a residence time less than 1 minute in the ultra-high temperature reaction zone sufficient to mix with and react with the reductant to reduce the metal compound particles to form a mixture of elemental metals. The mixture of elemental metals is removed from the ultra-high temperature reaction zone. One or more elemental metals are separated or concentrated from the mixture of elemental metals within one or more separation zones based on differential size and density of the one or more elemental metals and the remaining mixture of elemental metals.
    Type: Grant
    Filed: September 21, 2023
    Date of Patent: December 24, 2024
    Assignee: Omnis Advanced Technologies, LLC
    Inventors: James S. Swensen, Simon K. Hodson
  • Patent number: 12172207
    Abstract: A method for manufacturing a continuous casting mold in which cracking and spalling are less likely to occur in a filling laminate. The method includes filling a plurality of concave portions formed on an inner surface of a copper-made mold copper plate or a copper alloy-made mold copper plate used for continuously casting steel at least in a region including a meniscus position of molten steel in a casting process with a metal having a thermal conductivity different from that of the mold copper plate.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: December 24, 2024
    Assignee: JFE STEEL CORPORATION
    Inventors: Tomoya Odagaki, Kohei Furumai, Norichika Aramaki, Kohei Ishida, Daiki Yanagida
  • Patent number: 12173392
    Abstract: Disclosed is an austenitic stainless steel having an increased yield ratio. The disclosed austenitic stainless steel is characterized by comprising, in percent by weight (wt %), 0.1% or less (exclusive of 0) of C, 0.2% or less (exclusive of 0) of N, 1.5 to 2.5% of Si, 6.0 to 10.0% of Mn, 15.0 to 17.0% of Cr, 0.3% or less (exclusive of 0) of Ni, 2.0 to 3.0% of Cu, and the remainder of Fe and other inevitable impurities, and satisfying Expressions (1) and (2) below. 3.2?5.53+1.4Ni?0.16Cr+17.1(C+N)+0.722Mn+1.4Cu?5.59Si?7??Expression (1): 551?462(C+N)?9.2Si?8.1Mn?13.7Cr?29(Ni+Cu)?110??Expression (2): wherein C, N, Si, Mn, Cr, Ni, and Cu indicate the content (wt %) of respective elements.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: December 24, 2024
    Assignee: POSCO
    Inventors: Seokweon Song, Hak Kim, Mi-nam Park
  • Patent number: 12171903
    Abstract: Methods of producing bioresorbable porous biocomposites for orthopaedic applications are provided. In an exemplary embodiment of a resorbable orthopaedic implant of the present disclosure, the implant comprises a porous alloy of at least a first metal and a second metal sintered together, the alloy configured to resorb into a body at substantially an atomic level without flaking off, wherein a porosity of the implant is defined by a first plurality of interconnected holes having a first range of sizes.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: December 24, 2024
    Assignee: Purdue Research Foundation
    Inventors: Eric Nauman, Lia Stanciu, Michael J. Heiden, Madhi Dehestani
  • Patent number: 12170160
    Abstract: A soft magnetic powder contains a particle having a composition represented by FexCuaNbb(Si1-yBy)100-x-a-b, and 0.3?a?2.0, 2.0?b?4.0, and 75.5?x?79.5, and y is a number satisfying f(x)?y?0.99, and f(x)=(4×10?34)x17.56. The particle includes a crystal grain having a grain size of 1 nm to 30 nm, a Cu segregation portion, and a crystal grain boundary. A content proportion of the crystal grain is 30% or more. When the Cu segregation portion positioned in a surface layer portion and having a grain size of 2 nm to 10 nm is referred to as a first Cu segregation portion, and the Cu segregation portion positioned in an inner portion and having a grain size of 2 nm to 7 nm is referred to as a second Cu segregation portion, a number proportion of the first Cu segregation portion is 80% or more, a number proportion of the second Cu segregation portion is 80% or more, and the number of the second Cu segregation portion is twice or more the number of the first Cu segregation portion.
    Type: Grant
    Filed: January 26, 2023
    Date of Patent: December 17, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Mayu Watanabe, Mitsutaka Inui
  • Patent number: 12168820
    Abstract: A high strength and corrosion resistant ferrochrome alloy bulk is disclosed, which comprises, in weight percent: 30-68% Cr, 1.5-8% Ni, 1.6-6% C, and the balance Fe and incidental impurities, of which a Fe/Ni ratio is in a range from 5 to 10 and a Cr/C ratio is in a range between 10 and 33. Experimental data reveal that, samples of the high strength and corrosion resistant ferrochrome alloy bulk all possess hardness above HV400 and excellent corrosion resistance due to the high content of Cr. As a result, experimental data have proved that the high-strength and corrosion-resistant ferrochrome alloy bulk of the present invention has a significant potential to replace conventional high-strength stainless steels, so as to be widely applied in various industrial fields, e.g., aviation, transportation, marine facility components, chemical equipment and pipe fittings, engine parts, turbine blades, valves, bearings, building materials, and so on.
    Type: Grant
    Filed: July 27, 2021
    Date of Patent: December 17, 2024
    Assignee: NATIONAL TSING HUA UNIVERSITY
    Inventor: Jien-Wei Yeh
  • Patent number: 12168821
    Abstract: A soft magnetic powder contains a particle having a composition represented by FexCuaNbb(Si1-yBy)100-x-a-b, and 0.3?a?2.0, 2.0?b?4.0, and 72.5?x?75.5, and y is a number satisfying f(x)?y?0.99, and f(x)=(4×10?34)x17.56. The particle includes a crystal grain having a grain size of 1.0 nm to 30.0 nm, a Cu segregation portion, and a crystal grain boundary. A content proportion of the crystal grain is 30% or more. When the Cu segregation portion positioned in a surface layer portion and having a grain size of 1.0 nm to 5.0 nm is referred to as a first Cu segregation portion, and the Cu segregation portion positioned in an inner portion and having a grain size of 3.0 nm to 10.0 nm is referred to as a second Cu segregation portion, a number proportion of the first Cu segregation portion is 80% or more, and a number proportion of the second Cu segregation portion is 80% or more.
    Type: Grant
    Filed: January 26, 2023
    Date of Patent: December 17, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Mayu Watanabe, Mitsutaka Inui
  • Patent number: 12162070
    Abstract: A processing system is provided with: a support apparatus that is configured to support a processing target; a processing apparatus that performs an additive processing by irradiating a processed area on the processing target with an energy beam and by supplying materials to an area that is irradiated with the energy beam; and a position change apparatus that changes a positional relationship between the support apparatus and an irradiation area of the energy beam from the processing apparatus, wherein the processing system forms a fiducial build object by performing the additive processing on at least one of a first area that is a part of the support apparatus and a second area that is a part of the processing target, and the processing system controls at least one of the processing apparatus and the position change apparatus by using an information relating to the fiducial build object.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: December 10, 2024
    Assignee: NIKON CORPORATION
    Inventor: Hidemi Kawai