Patents by Inventor Hiroyuki Toya

Hiroyuki Toya 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: 8610446
    Abstract: A testing device includes a pressure vessel, a mounting stand disposed in an internal space of the pressure vessel, on which a device to be tested is mounted, test electrodes, disposed in the internal space of the pressure vessel, that supply a test voltage to the device to be tested mounted on the mounting stand, and a pressurization unit that raises the pressure of the internal space of the pressure vessel. The test voltage is supplied from the test electrodes to the device to be tested mounted on the mounting stand, and testing of the device to be tested is carried out, in a condition that the pressure of the internal space of the pressure vessel is raised by the pressurization unit.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: December 17, 2013
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Atsushi Yoshida, Hiroyuki Toya, Toru Nishizawa, Seizo Uchiyama
  • Publication number: 20130302687
    Abstract: Active material particles are provided that exhibit performance suitable for increasing the output of a lithium secondary battery and little deterioration due to charge-discharge cycling. The active material particles provided by the present invention have a hollow structure having secondary particles including an aggregate of a plurality of primary particles of a lithium transition metal oxide, and a hollow portion formed inside the secondary particles, and through holes that penetrates to the hollow portion from the outside are formed in the secondary particles. BET specific surface area of the active material particles is 0.5 to 1.9 m2/g.
    Type: Application
    Filed: July 12, 2013
    Publication date: November 14, 2013
    Applicants: SUMITOMO METAL MINING CO., LTD, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroki Nagai, Masahiro Morita, Kensaku Mori, Shin Imaizumi, Kenji Ikeuchi, Toshiyuki Osako, Hiroyuki Toya
  • Publication number: 20130288129
    Abstract: To obtain a non-aqueous electrolyte secondary battery having high capacity, high output and good cyclability, nickel manganese composite hydroxide particles are a precursor for a cathode active material having lithium nickel manganese composite oxide with a hollow structure and a small and uniform particle size. An aqueous solution for nucleation includes a metallic compounds that contains nickel and a metallic compound that contains manganese, but does not include a complex ion formation agent that forms complex ions with nickel, manganese and cobalt. After nucleation is performed, an aqueous solution for particle growth is controlled so that the temperature of the solution is 60° C. or greater, and so that the pH value that is measured at a standard solution temperature of 25° C. is 9.5 to 11.5, and is less than the pH value in the nucleation step.
    Type: Application
    Filed: June 25, 2013
    Publication date: October 31, 2013
    Inventors: Hiroyuki Toya, Kazuomi Ryoshi, Toshiyuki Osako
  • Patent number: 8486564
    Abstract: Active material particles are provided that exhibit performance suitable for increasing the output of a lithium secondary battery and little deterioration due to charge-discharge cycling. The active material particles provided by the present invention have a hollow structure having secondary particles including an aggregate of a plurality of primary particles of a lithium transition metal oxide, and a hollow portion formed inside the secondary particles, and through holes that penetrates to the hollow portion from the outside are formed in the secondary particles. BET specific surface area of the active material particles is 0.5 to 1.9 m2/g.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: July 16, 2013
    Assignees: Toyota Jidosha Kabushiki Kaisha, Sumitomo Metal Mining Co., Ltd.
    Inventors: Hiroki Nagai, Masahiro Morita, Kensaku Mori, Shin Imaizumi, Kenji Ikeuchi, Toshiyuki Osako, Hiroyuki Toya
  • Publication number: 20130078520
    Abstract: Provided are nickel manganese composite hydroxide particles that are a precursor for forming cathode active material comprising lithium nickel manganese composite oxide having hollow structure of particles having a small and uniform particle size for obtaining a non-aqueous electrolyte secondary battery having high capacity, high output and good cyclability. When obtaining the nickel manganese composite hydroxide particles from a crystallization reaction, an aqueous solution for nucleation, which includes at least a metallic compound that contains nickel and a metallic compound that contains manganese, and does not include a complex ion formation agent that forms complex ions with nickel, manganese and cobalt, is controlled so that the temperature of the solution is 60° C. or greater, and so that the pH value that is measured at a standard solution temperature of 25° C. is 11.5 to 13.
    Type: Application
    Filed: August 26, 2011
    Publication date: March 28, 2013
    Applicant: SUMITOMO METAL MINING CO., LTD.
    Inventors: Hiroyuki Toya, Kazuomi Ryoshi, Toshiyuki Osako
  • Publication number: 20130037742
    Abstract: A non-aqueous electrolyte secondary battery is provided that has both good safety and durability characteristics while at the same time has high charge/discharge capacity. The cathode active material for a non-aqueous electrolyte secondary battery of the present invention is a lithium nickel composite oxide to which at least two or more kinds of metal elements including aluminum are added, and comprises secondary particles that are composed of fine secondary particles having an average particle size of 2 ?m to 4 ?m, and rough secondary particles having an average particle size of 6 ?m to 15 ?m, with an overall average particle size of 5 ?m to 15 ?m; where the aluminum content of fine secondary particles (metal mole ratio; SA) is greater than the aluminum content of rough secondary particles (metal mole ratio: LA), and preferably the aluminum concentration ratio (SA/LA) is within the range 1.2 to 2.6.
    Type: Application
    Filed: February 9, 2011
    Publication date: February 14, 2013
    Inventors: Syuhei Oda, Hiroyuki Toya, Katsuya Kase, Yutaka Oyama
  • Publication number: 20130011331
    Abstract: Active material particles are provided that exhibit performance suitable for increasing the output of a lithium secondary battery and little deterioration due to charge-discharge cycling. The active material particles provided by the present invention have a hollow structure having secondary particles including an aggregate of a plurality of primary particles of a lithium transition metal oxide, and a hollow portion formed inside the secondary particles, and through holes that penetrates to the hollow portion from the outside are formed in the secondary particles. BET specific surface area of the active material particles is 0.5 to 1.9 m2/g.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 10, 2013
    Inventors: Hiroki Nagai, Masahiro Morita, Kensaku Mori, Shin Imaizum, Kenji Ikeuchi, Toshiyuki Osako, Hiroyuki Toya
  • Publication number: 20120282525
    Abstract: Active material particles are provided that exhibit performance suitable for increasing the output of a lithium secondary battery and little deterioration due to charge-discharge cycling. The active material particles provided by the present invention have a hollow structure having secondary particles including an aggregate of a plurality of primary particles of a lithium transition metal oxide, and a hollow portion formed inside the secondary particles, and through holes that penetrates to the hollow portion from the outside are formed in the secondary particles. BET specific surface area of the active material particles is 0.5 to 1.9 m2/g.
    Type: Application
    Filed: October 7, 2010
    Publication date: November 8, 2012
    Inventors: Hiroki Nagai, Masahiro Morita, Kensaku Mori, Shin Imaizumi, Kenji Ikeuchi, Toshiyuki Osako, Hiroyuki Toya
  • Publication number: 20120270107
    Abstract: An object of the present invention is to provide nickel cobalt manganese composite hydroxide particles having a small particle diameter and a uniform particle size distribution, and a method for producing the same. [Solution] A method for producing a nickel cobalt manganese composite hydroxide by a crystallization reaction is provided. The method includes: a nucleation step of performing nucleation by controlling a pH of an aqueous solution for nucleation including metal compounds containing nickel, cobalt and manganese, and an ammonium ion donor to 12.0 to 14.0 in terms of the pH as measured at a liquid temperature of 25° C. as a standard; and a particle growth step of growing nuclei by controlling a pH of an aqueous solution for particle growth containing nuclei formed in the nucleation step to 10.5 to 12.0 in terms of the pH as measured at a liquid temperature of 25° C. as a standard.
    Type: Application
    Filed: December 2, 2010
    Publication date: October 25, 2012
    Inventors: Hiroyuki Toya, Shin Imaizumi, Kensaku Mori, Atsushi Fukui, Kenji Ikeuchi, Kazuomi Ryoshi, Toshiyuki Osako, Hiroki Nagai
  • Patent number: 8288053
    Abstract: This invention provides a nickel oxide powder material, a production process thereof with high efficiency, a raw material composition for use in the same, and an anode material using the nickel oxide powder material. The nickel oxide powder material, when used as an anode material for a solid oxide fuel cell, can reduce heat shrinkage percentage in calcination to reduce a shrinkage difference from other component, and can suppress the occurrence of cracking, delamination, warpage and the like during calcining. Also in power generation after re-reduction after exposure of the anode once to an oxidizing atmosphere, for example, due to the disruption of the fuel supply, deterioration of microstructure of the anode can be suppressed, and the voltage drop percentage of the cell can be reduced.
    Type: Grant
    Filed: August 10, 2006
    Date of Patent: October 16, 2012
    Assignee: Sumitomo Metal Mining Co., Ltd.
    Inventors: Norimichi Yonesato, Hiroyuki Toya, Kazuomi Ryoshi, Tai Ito, Shoji Futaki
  • Publication number: 20110309850
    Abstract: A testing device includes a pressure vessel, a mounting stand disposed in an internal space of the pressure vessel, on which a device to be tested is mounted, test electrodes, disposed in the internal space of the pressure vessel, that supply a test voltage to the device to be tested mounted on the mounting stand, and a pressurization unit that raises the pressure of the internal space of the pressure vessel. The test voltage is supplied from the test electrodes to the device to be tested mounted on the mounting stand, and testing of the device to be tested is carried out, in a condition that the pressure of the internal space of the pressure vessel is raised by the pressurization unit.
    Type: Application
    Filed: June 1, 2011
    Publication date: December 22, 2011
    Applicant: Fuji Electric Co., Ltd.
    Inventors: Atsushi Yoshida, Hiroyuki Toya, Toru Nishizawa, Seizo Uchiyama
  • Patent number: 7608357
    Abstract: A powder material for a fuel electrode of a solid oxide fuel cell is provided, along with a fuel electrode for a solid oxide fuel cell prepared by sintering the fuel electrode powder material, and a solid oxide fuel cell including the fuel electrode. The fuel electrode powder material includes a nickel based powder material containing at least one of nickel and nickel oxide and at least one of titanium oxide (IV) and a titanium source capable of changing into titanium oxide (IV) by heat treatment in air.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: October 27, 2009
    Assignees: Toho Gas Co., Ltd., Sumitomo Metal Mining Co., Ltd.
    Inventors: Kenji Ukai, Yasunobu Mizutani, Kouji Hisada, Misuzu Yokoyama, Shoji Futaki, Hiroyuki Toya
  • Publication number: 20090136812
    Abstract: This invention provides a nickel oxide powder material, a production process thereof with high efficiency, a raw material composition for use in the same, and an anode material using the nickel oxide powder material. The nickel oxide powder material, when used as an anode material for a solid oxide fuel cell, can reduce heat shrinkage percentage in calcination to reduce a shrinkage difference from other component, and can suppress the occurrence of cracking, delamination, warpage and the like during calcining. Also in power generation after re-reduction after exposure of the anode once to an oxidizing atmosphere, for example, due to the disruption of the fuel supply, deterioration of microstructure of the anode can be suppressed, and the voltage drop percentage of the cell can be reduced.
    Type: Application
    Filed: August 10, 2006
    Publication date: May 28, 2009
    Applicant: Sumitomo Metal Mining Co., LTD.
    Inventors: Norimichi Yonesato, Hiroyuki Toya, Kazuomi Ryoshi, Tai Ito, Shoji Futaki
  • Publication number: 20060110633
    Abstract: A material for a fuel electrode of a solid oxide fuel cell with which volume change of the fuel electrode can be reduced as compared to the conventional one even if the fuel electrode is exposed to an oxidation-reduction cycle, a fuel electrode for a solid oxide fuel cell prepared by sintering the fuel electrode material, and a solid oxide fuel cell capable of stably maintaining power generation even if a fuel electrode thereof is exposed to an oxidation-reduction cycle. The fuel electrode material includes a material powder containing at least one of nickel and nickel oxide, wherein the material powder further contains at least one of titanium oxide (IV) and a titanium source capable of changing into titanium oxide (IV) by heat treatment in air. The fuel electrode material is sintered to prepare the fuel electrode, which is provided for the solid oxide fuel cell.
    Type: Application
    Filed: November 18, 2005
    Publication date: May 25, 2006
    Applicants: Toho Gas Co., Ltd., Sumitomo Metal Mining Co., Ltd.
    Inventors: Kenji Ukai, Yasunobu Mizutani, Kouji Hisada, Misuzu Yokoyama, Shoji Futaki, Hiroyuki Toya