Patents Examined by Vanessa T Luk
  • Patent number: 11898220
    Abstract: A method for recovery of platinum group metals from a spent catalyst is described. The method includes crushing the spent catalyst to obtain a catalyst particulate material including particles having a predetermined grain size. The method includes subjecting the catalyst particulate material to a chlorinating treatment in the reaction zone at a predetermined temperature for a predetermined time period by putting the catalyst particulate material in contact with the chlorine containing gas. The method also includes applying an electromagnetic field to the chlorine-containing gas in the reaction zone to provide ionization of chlorine; thereby to cause a chemical reaction between platinum group metals and chlorine ions and provide a volatile platinum group metal-containing chloride product in the reaction zone. Following this, the volatile platinum group metal-containing chloride product is cooled to convert the product into solid phase platinum group metal-containing materials.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: February 13, 2024
    Assignee: YEDA RESEARCH AND DEVELOPMENT CO. LTD.
    Inventors: Igor Lubomirsky, Valery Kaplan
  • Patent number: 11887960
    Abstract: This member connection method includes a printing step. In the printing step, a coating film-formed region in which the coating film is formed, and a coating film non-formed region in which the coating film is not formed are formed in the print pattern, and the coating film-formed region is divided into a plurality of concentric regions and a plurality of radial regions by means of a plurality of line-shaped regions provided so as to connect various points, which are separated apart from one another in the marginal part of the connection region.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: January 30, 2024
    Assignee: RESONAC CORPORATION
    Inventors: Motohiro Negishi, Hideo Nakako, Yuki Kawana, Dai Ishikawa, Chie Sugama, Yoshinori Ejiri
  • Patent number: 11884992
    Abstract: A method, apparatus and system for processing a composite waste source, such as e-waste, is disclosed. The composite waste source may comprise low-, moderate and high-melting point constituents, such as plastics, metals and ceramics. The composite waste source is heated to a first temperature zone, causing at least some of the low-melting point constituents to at least partially thermally transform. The composite waste source is subsequently heated to a second, higher, temperature zone, causing at least some of the moderate-melting point constituents to at least partially thermally transform. At least some of the at least partially thermally transformed constituents may be recovered. The method, apparatus and system disclosed may provide for the recovery and reuse of materials which would otherwise be sent to landfill or incinerated.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: January 30, 2024
    Assignee: NewSouth Innovations Pty Limited
    Inventor: Veena Sahajwalla
  • Patent number: 11878460
    Abstract: A three-dimensional shaped article production method for producing a three-dimensional shaped article by stacking layers to form a stacked body includes a first layer formation step of forming a first layer on a support by supplying a first composition containing first particles and a binder, a second layer formation step of forming a second layer composed of one layer or a plurality of layers on the first layer by supplying a second composition containing second particles and a binder, and a separation step of separating the second layer from the support through the first layer, wherein after the separation step, a sintering step of sintering the second layer is performed.
    Type: Grant
    Filed: December 5, 2022
    Date of Patent: January 23, 2024
    Assignee: Seiko Epson Corporation
    Inventors: Masaya Ishida, Eiji Okamoto, Hiroshi Wada, Toshimitsu Hirai
  • Patent number: 11872747
    Abstract: Described herein are methods and systems for printing a three-dimensional object. In an example, a method for printing a three-dimensional object can comprise: (i) a metallic build material being applied; (ii) a binder fluid being applied on at least a portion of the metallic build material; (iii) the selectively applied binder fluid can be flash fused to bind the metallic build material and the selectively applied binder fluid by application of an energy flux having an energy density of from about 0.5 J/cm2 to about 20 J/cm2 for less than about 1 second. In the example, (i), (ii), and (iii) can be repeated at least one time to form the three-dimensional object. The binder fluid can comprise a liquid vehicle and polymer particles dispersed in the liquid vehicle.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: January 16, 2024
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Vladek Kasperchik, Krzysztof Nauka, David Michael Ingle
  • Patent number: 11875934
    Abstract: The disclosure is directed to an iron-nitride material having a polycrystalline microstructure including a plurality of elongated crystallographic grains with grain boundaries, the iron-nitride material including at least one of an ??-Fe16N2 phase and a body-center-tetragonal (bct) phase comprising Fe and N. The disclosure is also directed a method producing an iron-nitride material.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: January 16, 2024
    Assignee: Regents of the University of Minnesota
    Inventors: Jian-Ping Wang, Md Mehedi, YanFeng Jiang, Bin Ma, Delin Zhang, Fan Zhang, Jinming Liu
  • Patent number: 11866808
    Abstract: A method for manufacturing a thixomolding material for thixomolding includes a drying step of heating a mixture containing a first powder that contains Mg as a main component, a second powder, a binder, and an organic solvent to dry the organic solvent contained in the mixture, and a stirring step of stirring the mixture heated in the drying step.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: January 9, 2024
    Assignee: Seiko Epson Corporation
    Inventors: Yasutoshi Hideshima, Hidefumi Nakamura, Makoto Kato
  • Patent number: 11865609
    Abstract: A method for manufacturing a powder-modified magnesium alloy chip for thixomolding includes a drying step of heating a mixture containing an Mg chip containing Mg as a main component, a C powder containing C as a main component, a binder, and an organic solvent to dry the organic solvent contained in the mixture, and a stirring step of stirring the mixture heated in the drying step.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: January 9, 2024
    Assignee: Seiko Epson Corporation
    Inventors: Koichi Ozaki, Tadao Fukuta, Yasutoshi Hideshima, Makoto Kato
  • Patent number: 11866796
    Abstract: Provided is a grain-oriented electrical steel sheet that combines low iron loss and low magnetostriction, together with an advantageous production method therefor. A grain-oriented electrical steel sheet comprises a linear strain portion extending in a direction intersecting a rolling direction of the grain-oriented electrical steel sheet, wherein the linear strain portion has a stress distribution in which a compressive stress region and a tensile stress region alternate in a longitudinal direction of the linear strain portion. The linear strain portion is formed by vibrating the grain-oriented electrical steel sheet in a sheet thickness direction, while irradiating a surface of the grain-oriented electrical steel sheet with an electron beam by repeatedly moving and detaining the electron beam in the direction intersecting the rolling direction of the grain-oriented electrical steel sheet.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: January 9, 2024
    Assignee: JFE STEEL CORPORATION
    Inventors: Yoshihisa Ichihara, Takeshi Omura, Kunihiro Senda
  • Patent number: 11866814
    Abstract: An austenitic stainless steel, which consists of by mass percent, C: not more than 0.02%, Si: not more than 1.5%, Mn: not more than 2%, Cr: 17 to 25%, Ni: 9 to 13%, Cu: more than 0.26% not more than 4%, N: 0.06 to 0.35%, sol. Al: 0.008 to 0.03%. One or more elements selected from Nb, Ti, V, TA, Hf, and Zr in controlled amounts can be included with the balance being Fe and impurities. P, S, Sn, As, Zn, Pb and Sb among the impurities are controlled as P: 0.006 to 0.04%, S: 0.0004 to 0.03%, Sn: 0.001 to 0.1%, As: not more than 0.01%, Zn: not more than 0.01%, Pb: not more than 0.01% and Sb: not more than 0.01%. The amounts of S, P, Sn, As, Zn, Pb and Sb and the amounts of Nb, Ta, Zr, Hf, and Ti are further controlled using formulas.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: January 9, 2024
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Takahiro Osuki, Kazuhiro Ogawa, Hiroyuki Hirata, Yoshitaka Nishiyama
  • Patent number: 11865623
    Abstract: A magnetic powder and a method for fabricating the same according to an embodiment of the present disclosure are provided. The magnetic powder is powder particles synthesized using a mixture of a rare earth oxide, a raw material, a metal, a metal oxide and a reducing agent, wherein the powder particles are single-phase, the raw material includes at least one of Fe and Co, the metal includes at least one of Ti, Zr, Mn, Mo, V and Si, and the metal oxide includes at least one of MnO2, MoO3, V2O5, SiO2, ZrO2 and TiO2.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: January 9, 2024
    Inventors: Jinhyeok Choe, Ikjin Choi, Hyounsoo Uh, Soon Jae Kwon
  • Patent number: 11851725
    Abstract: The present invention relates to an ironmaking feedstock comprising a solid CaFe3O5 phase. The ironmaking feedstock may be produced by a process comprising reacting a combination of a calcium source and magnetite at elevated temperature under reducing conditions sufficient to produce the solid CaFe3O5 phase. The product may be in the form of agglomerates such as pellets, with a compressive strength such that the product is suitable for transportation.
    Type: Grant
    Filed: October 5, 2022
    Date of Patent: December 26, 2023
    Assignees: Swinburne University of Technology, Commonwealth Scientific and Industrial Research Organisation
    Inventors: Suneeti Purohit, Geoffrey Brooks, Muhammad Akbar Rhamdhani, Mark Pownceby
  • Patent number: 11851729
    Abstract: The present invention provides a method which is capable of more strictly controlling the oxygen partial pressure required during the melting of a starting material, thereby being capable of recovering a valuable metal more efficiently. A method for recovering valuable metals (Cu, Ni, Co), said method comprising the following steps: a step for preparing, as a starting material, a charge that contains at least phosphorus (P), manganese (Mn) and valuable metals; a step for heating and melting the starting material into a melt, and subsequently forming the melt into a molten material that contains an alloy and slag; and a step for recovering the alloy that contains valuable metals by separating the slag from the molten material. With respect to this method for recovering valuable metals, the oxygen partial pressure in the melt is directly measured with use of an oxygen analyzer when the starting material is heated and melted.
    Type: Grant
    Filed: June 21, 2021
    Date of Patent: December 26, 2023
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventor: Yu Yamashita
  • Patent number: 11840744
    Abstract: Provided are a method for recovering gold, in which gold is recovered from a solution containing a gold cyano complex using a crosslinked resin containing a vinyl amine unit, by which gold can be efficiently recovered from the solution not only in a case (A) where a concentration of the gold cyano complex in the solution is low but also in a case (B) where another metal is dissolved in the solution; a method for recovering gold, in which the crosslinked resin and the solution are brought into contact with each other to separate the crosslinked resin and the solution from each other, by which gold can be efficiently recovered from the solution not only in the case (A) but also in the case (B); and a gold recovery facility comprising: a container inside which the crosslinked resin is accommodated in a flowable manner; and a device which feeds the solution to the container, by which gold can be efficiently recovered from the solution not only in the case (A) but also in the case (B).
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: December 12, 2023
    Assignee: HYMO Corporation
    Inventors: Ryuichi Ansai, Fumi Oono, Satoshi Sakuma, Fumiaki Satou, Akihiro Ishii, Yasuharu Mori
  • Patent number: 11834729
    Abstract: A method for extracting rare earth elements (REEs) from a REE hyperaccumulator, including: subjecting the REE hyperaccumulator to microwave-assisted digestion to obtain a REE extract; subjecting the REE extract to absorption with a chelating resin and elution to obtain a purified REE solution; and subjecting the purified REE solution to precipitation and calcination to obtain high-purity rare earth compound.
    Type: Grant
    Filed: November 30, 2022
    Date of Patent: December 5, 2023
    Assignee: Guangzhou Institute of Geochemistry, Chinese Academy of Sciences
    Inventors: Jianxi Zhu, Hongping He, Gaofeng Wang, Yuanyuan Wang, Mingqi Sun, Liuqing He, Xiaoliang Liang, Jingming Wei, Qingze Chen, Runliang Zhu
  • Patent number: 11814699
    Abstract: A method for recovery of precious metals from copper anode slime may include leaching a leach liquor out of the copper anode slime by mixing the copper anode slime with a mixture of nitric acid and sulfuric acid, separating silver from the leach liquor by forming a silver chloride precipitate in the leach liquor by mixing a supersaturated sodium chloride solution with the leach liquor at room temperature and obtaining a first filtrate by filtering the silver chloride precipitate out of the leach liquor. Copper may be separated from the first filtrate by forming a copper hydroxide precipitate in the first filtrate by adjusting pH of the first filtrate at 9 and obtaining a second filtrate by filtering the copper hydroxide precipitate out of the first filtrate. Metallic selenium may be recovered from the second filtrate by reducing the metallic selenium via a chemical reduction utilizing L-ascorbic acid (LAA) as a reducing agent.
    Type: Grant
    Filed: March 20, 2021
    Date of Patent: November 14, 2023
    Assignees: AMIRKABIR UNIVERSITY OF TECHNOLOG
    Inventors: Malek Naderi, Arash Ghazitabar
  • Patent number: 11806820
    Abstract: An additively manufactured object formed by depositing weld bead layers, each of the weld bead layers being obtained by melting and solidifying a filler metal made of a mild steel, the additively manufactured object includes a plurality of the weld bead layers having a ferrite phase with an average grain diameter of 11 ?m or less in a part except for a surface oxide film.
    Type: Grant
    Filed: January 4, 2022
    Date of Patent: November 7, 2023
    Assignee: KOBE STEEL, LTD.
    Inventors: Shinji Sato, Takeshi Yamada, Takemasa Yamasaki
  • Patent number: 11781205
    Abstract: Embodiments disclosed herein relate to the production of bulk amorphous metal (BAM) alloys comprising chromium, manganese, molybdenum, tungsten, silicon, carbon, boron, and the balance of iron to replace tungsten carbide-based welded material. The BAM alloy embodied herein can be applied through PTA welding, HVOF, TWAS, flame spraying, plasma spraying, laser, their combinations, and other coating and welding processes. When used as welded material, the density of the embodiment of around 7 grams per CC, which is less dense than the tungsten carbide customarily used, resulting in even hard faces during welding spread uniformly across the weld, therefore creating a harder and more wear-resistant weld.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: October 10, 2023
    Assignee: LIQUIDMETAL COATINGS ENTERPRISES, LLC
    Inventors: John Kang, Evelina Vogli
  • Patent number: 11780006
    Abstract: The present application provides a method for manufacturing a metal foam. The present application can provide a method for manufacturing a metal foam, which is capable of forming a metal foam comprising uniformly formed pores and having excellent mechanical properties as well as the desired porosity, and a metal foam having the above characteristics. In addition, the present application can provide a method capable of forming a metal foam in which the above-mentioned physical properties are ensured, while being in the form of a thin film or sheet, within a fast process time, and such a metal foam.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: October 10, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Dong Woo Yoo, Jin Kyu Lee, So Jin Kim
  • Patent number: 11745262
    Abstract: The invention relates to a method for producing a metal foam of at least one first metal that contains the main constituent Mg, Al, Pb, Au, Zn, Ti or Fe in a quantity of at least approximately 80 wt. % in relation to the quantity of the at least one first metal, said method comprising the following steps: (I) providing a semi-finished product comprising a foamable mixture that comprises the at least one first metal and at least one foaming agent, (II) submerging the semi-finished product in a heatable bath comprising a liquid, and (III) heating the semi-finished product in the bath in order to foam the foamable mixture by removing gas from the at least one foaming agent for forming the metal foam. The invention also relates to a metal foam, to a composite material that can be obtained by the method, and to a component comprising the metal foam and/or the composite material.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: September 5, 2023
    Assignee: POHLTEC METALFOAM GMBH
    Inventors: Wolfgang Seeliger, Stefan Sattler