Patents by Inventor Kikoo Uekusa

Kikoo Uekusa 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).

  • Patent number: 11949102
    Abstract: A positive electrode active material precursor for a nonaqueous electrolyte secondary battery is provided that includes a nickel-cobalt-manganese carbonate composite represented by general formula NixCoyMnzMtCO3 (where x+y+z+t=1, 0.05?x?0.3, 0.1?y?0.4, 0.55?z?0.8, 0?t?0.1, and M denotes at least one additional element selected from a group consisting of Mg, Ca, Al, Ti, V, Cr, Zr, Nb, Mo, and W) and a hydrogen-containing functional group. The ratio H/Me of the amount of hydrogen H to the amount of metal components Me included in the positive electrode active material precursor is less than 1.60. The positive electrode active material further includes a secondary particle formed by a plurality of primary particles that have been aggregated.
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: April 2, 2024
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventors: Satoshi Matsumoto, Kazuomi Ryoshi, Kikoo Uekusa
  • Patent number: 11482703
    Abstract: A positive-electrode active material precursor for a nonaqueous electrolyte secondary battery is provided that includes a nickel-cobalt-manganese carbonate composite represented by general formula NixCoyMnzMtCO3 (where x+y+z+t=1, 0.05?x?0.3, 0.1?y?0.4, 0.55?z?0.8, 0?t?0.1, and M denotes at least one additional element selected from a group consisting of Mg, Ca, Al, Ti, V, Cr, Zr, Nb, Mo, and W) and a hydrogen-containing functional group, wherein H/Me representing the ratio of the amount of hydrogen to the amount of metal components Me included in the positive-electrode active material precursor is greater than or equal to 1.60.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: October 25, 2022
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventors: Kikoo Uekusa, Satoshi Matsumoto, Masao Wakabayashi
  • Publication number: 20220077465
    Abstract: A positive electrode active material precursor for a nonaqueous electrolyte secondary battery is provided that includes a nickel-cobalt-manganese carbonate composite represented by general formula NixCoyMnzMtCO3 (where x+y+z+t=1, 0.05?x?0.3, 0.1?y?0.4, 0.55?z?0.8, 0?t?0.1, and M denotes at least one additional element selected from a group consisting of Mg, Ca, Al, Ti, V, Cr, Zr, Nb, Mo, and W) and a hydrogen-containing functional group. The ratio H/Me of the amount of hydrogen H to the amount of metal components Me included in the positive electrode active material precursor is less than 1.60. The positive electrode active material further includes a secondary particle formed by a plurality of primary particles that have been aggregated.
    Type: Application
    Filed: November 17, 2021
    Publication date: March 10, 2022
    Inventors: Satoshi MATSUMOTO, Kazuomi RYOSHI, Kikoo UEKUSA
  • Patent number: 11217790
    Abstract: A positive electrode active material precursor for a nonaqueous electrolyte secondary battery is provided that includes a nickel-cobalt-manganese carbonate composite represented by general formula NixCoyMnzMtCO3 (where x+y+z+t=1, 0.05?x?0.3, 0.1?y?0.4, 0?t?0.1, and M denotes at least one additional element selected from a group consisting of Mg, Ca, Al, Ti, V, Cr, Zr, Nb, Mo, and W) and a hydrogen-containing functional group. The ratio H/Me of the amount of hydrogen H to the amount of metal components Me included in the positive electrode active material precursor is less than 1.60. The positive electrode active material further includes a secondary particle formed by a plurality of primary particles that have been aggregated.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: January 4, 2022
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventors: Satoshi Matsumoto, Kazuomi Ryoshi, Kikoo Uekusa
  • Publication number: 20210175503
    Abstract: A positive-electrode active material precursor for a nonaqueous electrolyte secondary battery, contains a nickel-cobalt-manganese carbonate composite represented by a general formula of NixCoyMnzMtCO3 where x+y+z+t=1, 0.05?x?0.3, 0.1?y?0.4, 0.55?z?0.8, and 0?t?0.1 are satisfied; and M represents one or more additive elements selected from among Mg, Ca, Al, Ti, V, Cr, Zr, Nb, Mo, and W. The positive-electrode active material precursor includes secondary particles having an average particle diameter greater than or equal to 4 ?m and less than or equal to 9 ?m. The secondary particle includes a sparse central portion and a dense outer shell portion outside of the central portion, formed of primary particles.
    Type: Application
    Filed: February 22, 2021
    Publication date: June 10, 2021
    Inventors: Satoshi Matsumoto, Shuuzou Ozawa, Kikoo Uekusa
  • Publication number: 20200381728
    Abstract: A positive-electrode active material precursor for a nonaqueous electrolyte secondary battery is provided that includes a nickel-cobalt-manganese carbonate composite represented by general formula NixCoyMnzMtCO3 (where x+y+z+t=1, 0.05?x?0.3, 0.1?y?0.4, 0.55?z?0.8, 0?t?0.1, and M denotes at least one additional element selected from a group consisting of Mg, Ca, Al, Ti, V, Cr, Zr, Nb, Mo, and W) and a hydrogen-containing functional group, wherein H/Me representing the ratio of the amount of hydrogen to the amount of metal components Me included in the positive-electrode active material precursor is greater than or equal to 1.60.
    Type: Application
    Filed: August 18, 2020
    Publication date: December 3, 2020
    Inventors: Kikoo Uekusa, Satoshi Matsumoto, Masao Wakabayashi
  • Patent number: 10790509
    Abstract: A positive-electrode active material precursor for a nonaqueous electrolyte secondary battery is provided that includes a nickel-cobalt-manganese carbonate composite represented by general formula NixCoyMnzMtCO3 (where x+y+z+t=1, 0.05?x?0.3, 0.1?y?0.4, 0.55?z?0.8, 0?t?0.1, and M denotes at least one additional element selected from a group consisting of Mg, Ca, Al, Ti, V, Cr, Zr, Nb, Mo, and W) and a hydrogen-containing functional group, wherein H/Me representing the ratio of the amount of hydrogen to the amount of metal components Me included in the positive-electrode active material precursor is greater than or equal to 1.60.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: September 29, 2020
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventors: Kikoo Uekusa, Satoshi Matsumoto, Masao Wakabayashi
  • Publication number: 20190020025
    Abstract: A positive electrode active material precursor for a nonaqueous electrolyte secondary battery is provided that includes a nickel-cobalt-manganese carbonate composite represented by general formula NixCoyMnzMtCO3 (where x+y+z+t=1, 0.05?x?0.3, 0.1?y?0.4, 0?t?0.1, and M denotes at least one additional element selected from a group consisting of Mg, Ca, Al, Ti, V, Cr, Zr, Nb, Mo, and W) and a hydrogen-containing functional group. The ratio H/Me of the amount of hydrogen H to the amount of metal components Me included in the positive electrode active material precursor is less than 1.60. The positive electrode active material further includes a secondary particle formed by a plurality of primary particles that have been aggregated.
    Type: Application
    Filed: January 5, 2017
    Publication date: January 17, 2019
    Inventors: Satoshi MATSUMOTO, Kazuomi RYOSHI, Kikoo UEKUSA
  • Publication number: 20190013519
    Abstract: A positive-electrode active material precursor for a nonaqueous electrolyte secondary battery, contains a nickel-cobalt-manganese carbonate composite represented by a general formula of NixCoyMnzMtCO3 where x+y+z+t=1, 0.0?x?0.3, 0.1?y?0.4, 0.55?z?0.8, and 0?t?0.1 are satisfied; and M represents one or more additive elements selected from among Mg, Ca, Al, Ti, V, Cr, Zr, Nb, Mo, and W. The positive-electrode active material precursor includes secondary particles having an average particle diameter greater than or equal to 4 ?m and less than or equal to 9 ?m. The secondary particle includes a sparse central portion and a dense outer shell portion outside of the central portion, formed of primary particles.
    Type: Application
    Filed: January 5, 2017
    Publication date: January 10, 2019
    Applicant: Sumitomo Metal Mining Co., Ltd.
    Inventors: Satoshi MATSUMOTO, Shuuzou OZAWA, Kikoo UEKUSA
  • Publication number: 20190006671
    Abstract: A positive-electrode active material precursor for a nonaqueous electrolyte secondary battery is provided that includes a nickel-cobalt-manganese carbonate composite represented by general formula NixCoyMnzMtCO3 (where x+y+z+t=1, 0.05?x?0.3, 0.1?y?0.4, 0.55?z?0.8, 0?t?0.1, and M denotes at least one additional element selected from a group consisting of Mg, Ca, Al, Ti, V, Cr, Zr, Nb, Mo, and W) and a hydrogen-containing functional group, wherein H/Me representing the ratio of the amount of hydrogen to the amount of metal components Me included in the positive-electrode active material precursor is greater than or equal to 1.60.
    Type: Application
    Filed: January 5, 2017
    Publication date: January 3, 2019
    Applicant: SUMITOMO METAL MINING CO., LTD.
    Inventors: Kikoo UEKUSA, Satoshi MATSUMOTO, Masao WAKABAYASHI
  • Patent number: 6495488
    Abstract: The present invention provides a process for producing spherical catalyst carrier of silica, silica-alumina composition, zirconia-alumina composition, titania-alumina composition, boria-alumina composition, or boria-silica-alumina composition which has almost the same pore characteristics as alumina hydrate gel, silica-alumina hydrate gel, zirconia-alumina hydrate gel, or titania-alumina hydrate gel (or alumina hydrate paste, boria-alumina hydrate paste, or boria-silica-alumina hydrate paste) as the major raw material, has uniform sphericity and smooth surface and homogeneity, and has a macropore volume that can be controlled.
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: December 17, 2002
    Assignee: Sumitomo Metal Mining Co., Ltd.
    Inventors: Toshio Yamaguchi, Kikoo Uekusa
  • Patent number: 6280610
    Abstract: The invention pertains to a process for activating a hydrotreating catalyst comprising a Group VIII hydrogenation metal and a Group VI hydrogenation metal, which are substantially in the oxide form, on a carrier in which the hydrotreating catalyst is contacted with an additive which is at least one compound selected from the group of compounds comprising at least two hydroxyl groups and 2-10 carbon atoms, and the (poly)ethers of these compounds, after which the catalyst is dried under such conditions that at least 50% of the additive remains in the catalyst. The additive is preferably at least one compound selected from ethylene glycol, diethylene glycol, and polyethylene glycol, or a saccharide or a polysaccharide. The invention additionally pertains to the catalyst obtainable by this process, which shows high activity in hydrodesulphurization and hydrodenitrogenation reactions, and to the use of the catalyst in hydrotreating.
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: August 28, 2001
    Assignee: Akzo Nobel NV
    Inventors: Yuji Uragami, Eiji Yamaguchi, Hideharu Yokozuka, Kikoo Uekusa
  • Publication number: 20010012816
    Abstract: The present invention provides a process for producing spherical catalyst carrier of silica, silica-alumina composition, zirconia-alumina composition, titania-alumina composition, boria-alumina composition, or boria-silica-alumina composition which has almost the same pore characteristics as alumina hydrate gel, silica-alumina hydrate gel, zirconia-alumina hydrate gel, or titania-alumina hydrate gel (or alumina hydrate paste, boria-alumina hydrate paste, or boria-silica-alumina hydrate paste) as the major raw material, has uniform sphericity and smooth surface and homogeneity, and has a macropore volume that can be controlled.
    Type: Application
    Filed: April 10, 2001
    Publication date: August 9, 2001
    Inventors: Toshio Yamaguchi, Kikoo Uekusa
  • Patent number: 6251823
    Abstract: A process for producing spherical catalyst carrier of silica, silica-alumina composition, zirconia-alumina composition, titania-alumina composition, boria-alumina composition, or boria-silica-alumina composition which has almost the same pore characteristics as alumina hydrate gel, silica-alumina hydrate gel, zirconia-alumina hydrate gel, or titania-alumina hydrate gel (or alumina hydrate paste, boria-alumina hydrate paste, or boria-silica-alumina hydrate paste) as the major raw material, having uniform sphericity and smooth surface and homogeneity, and has a macropore volume that can be controlled includes adding a polysaccharide solution to any of alumina, silica-alumina, zirconia-alumina, or titania-alumina in the form of hydrate gel, or alumina, boria-alumina, or boria-silica-alumina in the form of hydrate paste, mixing them to form a slurry with a controlled concentration, dropping the slurry into a solution containing multivalent metal ions, thereby forming spherical hydrogel, and performing the additio
    Type: Grant
    Filed: August 10, 1999
    Date of Patent: June 26, 2001
    Assignee: Sumitomo Metal Mining Co., Ltd.
    Inventors: Toshio Yamaguchi, Kikoo Uekusa
  • Patent number: 5468709
    Abstract: Catalysts for hydrodesulfurization and hydrodenitrogenation of hydrocarbon oils are provided which have high catalytic activity, excellent productivity and low pollution. The catalysts are made from an alumina carrier substance, at least one active metal element selected from the Group VI metals in the periodic table, at least one active metal element chosen from the Group VIII metals in the periodic table, phosphoric acid, and an additive agent. The additive agent is at least one substance selected from dihydric or trihydric alcohols having 2-10 carbon atoms per one molecule, ethers of the alcohols, monosaccharides, disaccharides, and polysaccharides. A method for preparing the catalysts is also provided and includes impregnating the alumina carrier substance with a solution mixed with a certain amount of the active metal elements, phosphoric acid and the additive agent, and drying the impregnated carrier substance at a temperature of less than 200.degree. C.
    Type: Grant
    Filed: November 18, 1993
    Date of Patent: November 21, 1995
    Assignee: Sumitomo Metal Mining Co., Ltd.
    Inventors: Eiji Yamaguchi, Yuji Uragami, Hideharu Yokozuka, Kikoo Uekusa, Toshio Yamaguchi, Satoshi Abe, Tetsuro Kamo, Takao Suzuki
  • Patent number: 4950633
    Abstract: Disclosed is a catalyst for hydrotreating a coal liquefaction and circulation solvent, in which .gamma.-alumina carrier carries at least one metal of Group VI of the Periodic Table in an amount of from 15 to 15% by weight as the oxide thereof and at least one metal of Group VIII of the same Table in an amount of from 3 to 10% by weight as the oxide thereof and the pore distribution as measured by mercury pressure porosimetry satisfies the conditions that the pores having a diameter of from 40 to 600 .ANG. have a mean diameter of from 9 to 150 .ANG. and the capacty of the pores having a diameter falling within the range of the mean diametr plus/minus 10 .ANG. is 65% or more of the capacity of the pores having a diameter of from 40 to 600 .ANG.. The catalyst is highly active for both hydrogenation and denitrogenation of coal-liquefying solvents.
    Type: Grant
    Filed: October 17, 1989
    Date of Patent: August 21, 1990
    Assignee: Sumitomo Metal Mining Company Limited
    Inventors: Toshio Yamaguchi, Kikoo Uekusa, Naoto Kinbara, Eiji Funatsu, Katsuzo Shiraishi, Yukuaki Mitarai