Patents Examined by Vanessa T Luk
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Patent number: 11851729Abstract: 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: GrantFiled: June 21, 2021Date of Patent: December 26, 2023Assignee: SUMITOMO METAL MINING CO., LTD.Inventor: Yu Yamashita
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Patent number: 11840744Abstract: 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: GrantFiled: June 22, 2020Date of Patent: December 12, 2023Assignee: HYMO CorporationInventors: Ryuichi Ansai, Fumi Oono, Satoshi Sakuma, Fumiaki Satou, Akihiro Ishii, Yasuharu Mori
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Patent number: 11834729Abstract: 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: GrantFiled: November 30, 2022Date of Patent: December 5, 2023Assignee: Guangzhou Institute of Geochemistry, Chinese Academy of SciencesInventors: Jianxi Zhu, Hongping He, Gaofeng Wang, Yuanyuan Wang, Mingqi Sun, Liuqing He, Xiaoliang Liang, Jingming Wei, Qingze Chen, Runliang Zhu
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Patent number: 11814699Abstract: 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: GrantFiled: March 20, 2021Date of Patent: November 14, 2023Assignees: AMIRKABIR UNIVERSITY OF TECHNOLOGInventors: Malek Naderi, Arash Ghazitabar
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Patent number: 11806820Abstract: 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: GrantFiled: January 4, 2022Date of Patent: November 7, 2023Assignee: KOBE STEEL, LTD.Inventors: Shinji Sato, Takeshi Yamada, Takemasa Yamasaki
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Patent number: 11781205Abstract: 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: GrantFiled: December 31, 2019Date of Patent: October 10, 2023Assignee: LIQUIDMETAL COATINGS ENTERPRISES, LLCInventors: John Kang, Evelina Vogli
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Patent number: 11780006Abstract: 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: GrantFiled: November 29, 2017Date of Patent: October 10, 2023Assignee: LG CHEM, LTD.Inventors: Dong Woo Yoo, Jin Kyu Lee, So Jin Kim
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Patent number: 11745262Abstract: 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: GrantFiled: September 14, 2018Date of Patent: September 5, 2023Assignee: POHLTEC METALFOAM GMBHInventors: Wolfgang Seeliger, Stefan Sattler
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Patent number: 11749430Abstract: A method for manufacturing a wound magnetic core of a nanocrystalline soft magnetic alloy ribbon, the method including: a first heat treatment step of subjecting a wound magnetic core, which is formed by winding an amorphous soft magnetic alloy ribbon capable of nanocrystallization, to a heat treatment at a temperature that is 300° C.Type: GrantFiled: February 5, 2020Date of Patent: September 5, 2023Assignee: PROTERIAL, LTD.Inventor: Kazuhiro Hagiwara
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Patent number: 11732336Abstract: Provided are: a novel magnetic material having high magnetic stability, in particular, having an extremely high saturation magnetization; and a method for producing the same, wherein the magnetic material, due to having a higher saturation magnetization than ferrite magnetic materials and a higher electrical resistivity than existing metallic magnetic materials, resolves problems such as eddy current loss. According to the present invention, Co-ferrite nanoparticles obtained by wet synthesis are reduced in hydrogen and subjected to grain growth, and bcc- or fcc-(Fe, Co) phases and Co-enriched phases are nano-dispersed using phase separation via a disproportionation reaction to prepare a magnetic material powder. In addition, the magnetic material powder is sintered into a solid magnetic material.Type: GrantFiled: September 20, 2018Date of Patent: August 22, 2023Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Shinpei Yamamoto, Nobuyoshi Imaoka, Kimihiro Ozaki
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Patent number: 11718901Abstract: A method for producing a coated magnetic powder in which particle surfaces of a soft magnetic powder are coated with a silicone resin includes a preparation step of preparing a silicone emulsion by mixing a silicone resin with water containing a surfactant and dispersing the silicone resin in the water, an application step of applying the silicone emulsion onto particle surfaces of a soft magnetic powder, and a drying step of drying the soft magnetic powder after the silicone emulsion is applied.Type: GrantFiled: May 17, 2017Date of Patent: August 8, 2023Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC SINTERED ALLOY, LTD.Inventors: Asako Watanabe, Tomoyuki Ueno
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Patent number: 11702715Abstract: A steel composition, a reinforcement part of a vehicle using the steel composition and a method of manufacturing the reinforcement part using the steel composition are provided. In particular, the steel composition includes increased content of carbon components and the steel composition is processed by rapid heating and immediate quenching.Type: GrantFiled: February 18, 2021Date of Patent: July 18, 2023Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Alex Khutorsky, Jonghyun Kim
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Patent number: 11697862Abstract: A mineral processing method capable of efficiently separating a copper mineral from a molybdenum mineral is provided. The mineral processing method includes: a conditioning step of adding sulfite as a surface treatment agent to a mineral slurry containing a copper mineral and a molybdenum mineral; and a flotation step of performing flotation using the mineral slurry after the conditioning step. The hydrophilicity of the copper mineral can be selectively enhanced by sulfite, so as to be able to produce a difference in hydrophilicity between the copper mineral and the molybdenum mineral. Therefore, the molybdenum mineral can be selectively caused to float, and the copper mineral and the molybdenum mineral can be efficiently separated from each other.Type: GrantFiled: June 1, 2018Date of Patent: July 11, 2023Assignees: KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION, SUMITOMO METAL MINING CO., LTD.Inventors: Tsuyoshi Hirajima, Hajime Miki, Gde Pandhe Wisnu Suyantara, Yuji Imaizumi, Yuji Aoki, Eri Takida
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Patent number: 11697881Abstract: The present invention relates to a method of manufacturing a pipe, which method comprises cold-gas dynamic spraying of particles onto a suitable support member thereby producing a pipe, and separating the pipe from the support member.Type: GrantFiled: December 10, 2019Date of Patent: July 11, 2023Assignee: Commonwealth Scientific and Industrial Research OrganisationInventors: Mahnaz Jahedi, Stefan Gulizia, Bill Tiganis, Caixian Tang, Saden Zahiri
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Patent number: 11692241Abstract: While a molten metal of copper heated to a temperature, which is higher than the melting point of copper by 250 to 700° C. (preferably 350 to 650° C. and more preferably 450 to 600° C.), is allowed to drop, a high-pressure water is sprayed onto the heated molten metal of copper in a non-oxidizing atmosphere (such as an atmosphere of nitrogen, argon, hydrogen or carbon monoxide) to rapidly cool and solidify the heated molten metal of copper to produce a copper powder which has an average particle diameter of 1 to 10 ?m and a crystallite diameter Dx(200) of not less than 40 nm on (200) plane thereof, the content of oxygen in the copper powder being 0.7% by weight or less.Type: GrantFiled: December 21, 2017Date of Patent: July 4, 2023Assignee: DOWA ELECTRONICS MATERIALS CO., LTD.Inventors: Masahiro Yoshida, Kenichi Inoue, Atsushi Ebara, Yoshiyuki Michiaki, Takahiro Yamada
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Patent number: 11692239Abstract: The invention relates to a process for selectively and continuously extracting a series of desired species from a matrix, comprising the steps of:—injecting a plasma (310) in an extraction chamber by means of a plasma torch,—continuously monitoring (320) the excited elements extracted from the matrix and contained in the plasma by optical emission spectroscopy, and for each species of the series,—setting a distance (330) between the support and the plasma torch, and the composition of the injected plasma as a function of the monitored excited elements so that only one desired species of the series of species is being extracted from the matrix under molecular form, and—providing (400) a plate in the extraction chamber, exterior to the plasma, causing collection of molecules comprising said desired species by deposition onto the surface of the plate.Type: GrantFiled: June 8, 2017Date of Patent: July 4, 2023Inventors: Frédéric Rousseau, Olivier Lesage, Jonathan Cramer, Frédéric Prima, Daniel Morvan
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Patent number: 11685962Abstract: An annealing separator composition for a grain-oriented electrical steel sheet according to an embodiment of the present invention includes: 100 parts by weight of at least one of a magnesium oxide and a magnesium hydroxide; and 30 to 250 parts by weight of a metal hydroxide including at least one of a nickel hydroxide and a cobalt hydroxide, wherein an average particle diameter of the metal hydroxide is 0.01 to 80 ?m.Type: GrantFiled: September 25, 2019Date of Patent: June 27, 2023Assignee: POSCO CO., LTDInventors: Min Soo Han, Yunsu Kim, Jong-Tae Park
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Patent number: 11685971Abstract: A degradable, high-strength zinc composition suitable for use in producing degradable tools and components for in use in oil and gas and related application fields.Type: GrantFiled: April 23, 2019Date of Patent: June 27, 2023Assignee: TERVES, LLCInventors: Andrew Sherman, Josh Caris, Nicholas Farkas, Gabriel Santillan
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Patent number: 11667998Abstract: An FeNi ordered alloy contained in a magnetic material has an L10 ordered structure, is doped with an light element, and is provided as a granular particle. A method for manufacturing a magnetic material including an FeNi ordered alloy having an L10 ordered structure includes preparing an FeNi ordered alloy provided as a granular particle, and doping a light element into the FeNi ordered alloy.Type: GrantFiled: November 5, 2019Date of Patent: June 6, 2023Assignee: DENSO CORPORATIONInventors: Eiji Watanabe, Yuta Saiga, Hidehiko Hiramatsu, Sho Goto, Ryota Shinozaki, Hiroaki Kura
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Patent number: 11667997Abstract: The invention relates to a product made of an aluminium-based alloy comprising, by wt. %, Cu: 2.4-3.2; Li: 1.6-2.3; Mg: 0.3-0.9; Mn: 0.2-0.6; Zr: 0.12-0.18; such that Zr??0.06 *Li+0.242; Zn: <1.0; Ag: <0.15; Fe+Si?0.20; optionally, at least one element selected from Ti, Sc, Cr, Hf and V, the content of the element, if selected, being: Ti: 0.01-0.1; Sc: 0.01-0.15; Cr: 0.01-0.3; Hf: 0.01-0.5; V: 0.01-0.3; other elements ?0.05 each and ?0.15 in total; the remainder being aluminium.Type: GrantFiled: April 9, 2018Date of Patent: June 6, 2023Assignee: CONSTELLIUM ISSOIREInventors: Juliette Chevy, Philippe Jarry, Soizic Blais, Alireza Arbab