Patents by Inventor Yukihiro Goda
Yukihiro Goda has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230241144Abstract: Pharmaceutical preparations, Chinese herbal preparations, foods, and other compositions may contain, as an active ingredient, an ephedra extract, an ephedrine-alkaloid-free ephedra extract, or a polymercondensed tannin derived from an ephedra extract. Such compositions may be useful for preventing or treating COVID-19 infection (COVID-19). Such compositions are preferably provided in an orally ingestible form.Type: ApplicationFiled: October 1, 2021Publication date: August 3, 2023Applicants: THE KITASATO INSTITUTE, JAPAN AS REPRESENTED BY DIRECTOR GENERAL OF NATIONAL INSTITUTE OF HEALTH SCIENCES, Matsuyama University, TOKIWA PHYTOCHEMICAL CO., LTD., TSUMURA & CO.Inventors: Toshihiko HANAWA, Sumiko HYUGA, Hiroshi ODAGUCHI, Yukihiro GODA, Masashi HYUGA, Masashi UEMA, Hiroshi ASAKURA, Nahoko UCHIYAMA, Yoshiaki AMAKURA, Morio YOSHIMURA, Jinwei YANG, Kazushige MIZOGUCHI
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Publication number: 20230187625Abstract: The method for producing a positive electrode active material for a lithium ion secondary battery includes preparing a mixture containing at least a nickel-manganese composite compound, a lithium compound, and optionally one or both of a titanium compound and a niobium compound. The method also includes firing the mixture from 750° C. to 1000° C. so as to obtain the lithium-nickel-manganese composite oxide, in which the nickel-manganese composite compound contains at least nickel, manganese, and an element M, an amount of substance ratio (z) of titanium and an amount of substance ratio (w) of niobium to a total amount of substance of nickel, manganese, the element M, titanium, and niobium in the mixture satisfy 0.005?z?0.05, 0.001<w?0.03, (z+w)?0.06, and z>w, and at least a part of the niobium is segregated to a grain boundary between primary particles.Type: ApplicationFiled: June 30, 2020Publication date: June 15, 2023Applicant: SUMITOMO METAL MINING CO., LTD.Inventors: Yuki Koshika, Haruki Kaneda, Yukihiro Goda
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Patent number: 11608543Abstract: The present invention addresses the problem, in methods for producing a metal or alloy by reducing a mixture that contains an oxide ore, of providing an oxide ore smelting method with good productivity and efficiency. The present invention is an oxide ore smelting method for producing a metal or alloy by reducing a mixture that contains an oxide ore, the method comprising at least: a mixing step S1 for mixing an oxide ore with a carbonaceous reducing agent; a mixture-molding step S2 for molding the mixture obtained to obtain a mixture-molded body; and a reducing step S3 for heating the mixture-molded body obtained at a specified reducing temperature in a reducing furnace.Type: GrantFiled: April 26, 2017Date of Patent: March 21, 2023Assignee: SUMITOMO METAL MINING CO., LTD.Inventors: Takashi Iseki, Yukihiro Goda, Jun-ichi Kobayashi, Shuji Okada
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Patent number: 11479832Abstract: Provided is a smelting method for producing metal by reducing a mixture that includes an oxide ore such as nickel oxide ore, wherein it is possible to improve productivity by raising the metal recovery rate as well as to inexpensively and efficiently produce high-quality metal. The present invention is a smelting method in which: an oxide ore and a carbonaceous reducing agent are mixed; the resulting mixture is heated and subjected to a reduction treatment; and metal and slag, which are reduction products, are obtained, wherein the reduction treatment is carried out in a state in which one or more surface deposits selected from carbonaceous reducing agents, metal oxides, and oxidation inhibitors are deposited on the surface of the mixture.Type: GrantFiled: April 19, 2017Date of Patent: October 25, 2022Assignee: SUMITOMO METAL MINING CO., LTD.Inventors: Takashi Iseki, Yukihiro Goda, Jun-ichi Kobayashi, Shuji Okada
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Patent number: 10626480Abstract: In a method for producing a metal or alloy by forming pellets from an oxide ore, a method for smelting an oxide ore, wherein a high-quality metal can be produced. Provided is a method for smelting an oxide ore to produce a metal or alloy by heating for reducing a mixture containing an oxide ore and a carbonaceous reducing agent, wherein the carbonaceous reducing agent is composed of particles (reducing agent particles), the number of reducing agent particles which are contained in the carbonaceous reducing agent and have a maximum particle length of 25 ?m or less is 2% or more and 25% or less of the total number of reducing agent particles contained in the carbonaceous reducing agent, and the average maximum particle length of reducing agent particles having a maximum particle length greater than 25 ?m is 30 ?m or more and 80 ?m or less.Type: GrantFiled: May 11, 2018Date of Patent: April 21, 2020Assignee: SUMITOMO METAL MINING CO., LTD.Inventors: Takashi Iseki, Yukihiro Goda, Jun-ichi Kobayashi, Shuji Okada
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Publication number: 20200056262Abstract: In a method for producing a metal or alloy by forming pellets from an oxide ore, a method for smelting an oxide ore, wherein a high-quality metal can be produced. Provided is a method for smelting an oxide ore to produce a metal or alloy by heating for reducing a mixture containing an oxide ore and a carbonaceous reducing agent, wherein the carbonaceous reducing agent is composed of particles (reducing agent particles), the number of reducing agent particles which are contained in the carbonaceous reducing agent and have a maximum particle length of 25 ?m or less is 2% or more and 25% or less of the total number of reducing agent particles contained in the carbonaceous reducing agent, and the average maximum particle length of reducing agent particles having a maximum particle length greater than 25 ?m is 30 ?m or more and 80 ?m or less.Type: ApplicationFiled: May 11, 2018Publication date: February 20, 2020Inventors: Takashi Iseki, Yukihiro Goda, Jun-ichi Kobayashi, Shuji Okada
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Publication number: 20200024685Abstract: Provided is a smelting method in which, for example, a metal oxide such as a nickel oxide ore including nickel oxide is used as a source material and is reduced with a carbonaceous reducing agent to obtain a reduced product, with which method efficient processing can be achieved. This metal oxide smelting method is, for example, a nickel oxide ore smelting method. Specifically, the method includes a reduction process step S3 that has: a drying step S31 in which a mixture that was obtained by mixing a metal oxide and a carbonaceous reducing agent is dried; a preheating step S32 in which the dried mixture is preheated; a reduction step S33 in which the preheated mixture is reduced using a rotary hearth furnace 1, a hearth of which rotates; and a cooling step S35 in which the obtained reduced product is cooled.Type: ApplicationFiled: January 31, 2018Publication date: January 23, 2020Inventors: Takashi Iseki, Yukihiro Goda, Jun-ichi Kobayashi, Shuji Okada
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Publication number: 20200010925Abstract: Provided is a smelting method in which, for example, a metal oxide such as a nickel oxide ore including nickel oxide is used as a source material and is reduced with a carbonaceous reducing agent to obtain a reduced product, with which method efficient processing can be achieved. This metal oxide smelting method is, for example, a nickel oxide ore smelting method. Specifically, the method includes a reduction process step that has: a drying step in which a mixture that was obtained by mixing a metal oxide and a carbonaceous reducing agent is dried; a preheating step in which the dried mixture is preheated; a reduction step in which the preheated mixture is reduced using a rotary hearth furnace, said rotary hearth having a hearth that rotates and not having a partition structure in an interior; and a cooling step in which the obtained reduced product is cooled.Type: ApplicationFiled: January 31, 2018Publication date: January 9, 2020Inventors: Takashi Iseki, Yukihiro Goda, Jun-ichi Kobayashi, Shuji Okada
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Publication number: 20190144971Abstract: Provided is a smelting method for producing metal by reducing a mixture that includes an oxide ore such as nickel oxide ore, wherein it is possible to improve productivity by raising the metal recovery rate as well as to inexpensively and efficiently produce high-quality metal. The present invention is a smelting method in which: an oxide ore and a carbonaceous reducing agent are mixed; the resulting mixture is heated and subjected to a reduction treatment; and metal and slag, which are reduction products, are obtained, wherein the reduction treatment is carried out in a state in which one or more surface deposits selected from carbonaceous reducing agents, metal oxides, and oxidation inhibitors are deposited on the surface of the mixture.Type: ApplicationFiled: April 19, 2017Publication date: May 16, 2019Inventors: Takashi Iseki, Yukihiro Goda, Jun-ichi Kobayashi, Shuji Okada
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Publication number: 20190119779Abstract: The present invention addresses the problem, in methods for producing a metal or alloy by reducing a mixture that contains an oxide ore, of providing an oxide ore smelting method with good productivity and efficiency. The present invention is an oxide ore smelting method for producing a metal or alloy by reducing a mixture that contains an oxide ore, the method comprising at least: a mixing step S1 for mixing an oxide ore with a carbonaceous reducing agent; a mixture-molding step S2 for molding the mixture obtained to obtain a mixture-molded body; and a reducing step S3 for heating the mixture-molded body obtained at a specified reducing temperature in a reducing furnace.Type: ApplicationFiled: April 26, 2017Publication date: April 25, 2019Inventors: Takashi Iseki, Yukihiro Goda, Jun-ichi Kobayashi, Shuji Okada