Patents by Inventor Hiroshi Suyama

Hiroshi Suyama 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).

  • Publication number: 20220140323
    Abstract: Provided is a method for producing a composite alloy for use in an electrode for an alkaline storage battery, including a powder preparation step of preparing a hydrogen storage alloy powder containing Ti and Cr and having a BCC structure, an etching step of applying an acid to the hydrogen storage alloy powder prepared in the powder preparation step, a Pd film forming step of coating the surface of the hydrogen storage alloy powder subjected to the etching step with Pd using a substitution plating method, and a heat treatment step of heating the hydrogen storage alloy powder having a Pd film formed, at said heating being a temperature of 500° C. or less, wherein in the Pd coating forming step, the hydrogen storage alloy powder is coated with Pd under the condition that the Pd element weight ratio of the composite alloy to be produced is 0.47% or more.
    Type: Application
    Filed: October 8, 2021
    Publication date: May 5, 2022
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroshi Suyama, Makio Kon, Naotaka Sawada
  • Publication number: 20220102809
    Abstract: A separator for a zinc secondary battery according to the present disclosure includes a zirconium sulfate-containing porous layer and a porous base material layer that are stacked on each other. The porous base material layer, the zirconium sulfate-containing porous layer, and the porous base material layer may be stacked in this order. The porous base material layer may be a resin porous layer. A zinc secondary battery according to the present disclosure includes the separator for a zinc secondary battery according to the present disclosure.
    Type: Application
    Filed: August 2, 2021
    Publication date: March 31, 2022
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroshi SUYAMA
  • Publication number: 20220065293
    Abstract: A sliding fabric has high wear resistance and can exhibit a long-term sliding property even when subjected to repetitive frictional force accompanied by shearing force. The sliding fabric is a single-layer plain-woven fabric configured to include fluororesin fibers A and at least one type of fibers B having a tensile strength of 10 cN/dtex or more, the sliding fabric having a ratio of 1.5 or more between an area ratio of the fluororesin fibers A on one surface thereof and an area ratio of the fluororesin fibers A on another surface.
    Type: Application
    Filed: November 22, 2019
    Publication date: March 3, 2022
    Inventors: Masato Sekiyama, Hiroshi Suyama, Yuki Ninomiya, Masaru Harada
  • Publication number: 20220001816
    Abstract: A wire exterior body and an exterior-covered wire harness, capable of reducing vibration noise generated by vibration of the exterior body attached to a vehicle or the like and the wire harness in the exterior body, caused by vibration of the vehicle or the like, are provided. A wire exterior body to be attached to an outer periphery of a wire, formed by bending a resin sheet, includes a plurality of wall parts extending along the extending direction of the wire and forming an accommodating part for accommodating the wire. At least one of the plurality of wall parts has a protruding part protruding from the at least one wall part.
    Type: Application
    Filed: September 10, 2019
    Publication date: January 6, 2022
    Inventors: Takashi OSHINO, Yoshikazu KAMEI, Hiroshi SUYAMA, Shuji YOKOZEKI, Naoyuki KOJIMA
  • Patent number: 11211640
    Abstract: Electrolysis of an aqueous electrolyte solution on a surface of an anode is suppressed when an aqueous lithium ion secondary battery is charged/discharged. In an aqueous electrolyte solution that is used for an aqueous lithium ion secondary battery, at least one metal cation selected from an aluminum ion, a titanium ion, a manganese ion, a zinc ion, a gallium ion, a yttrium ion, a zirconium ion, an indium ion, a lanthanum ion, a cerium ion, a neodymium ion, and a hafnium ion is contained so that its content is more than 0 mol and no more than 0.01 mol per kilogram of the aqueous electrolyte solution, in addition to a lithium ion and at least one imide based anion.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: December 28, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroshi Suyama
  • Publication number: 20210375503
    Abstract: An electric wire outer cover is provided which is to be fitted around an electric wire and which has a tubular housing portion where the electric wire is to be housed, the housing portion being formed of a sheet, the housing portion being formed in a folded state. Further, walls forming the housing portion include a first wall having a projection formed therefrom and a second wall having a hole formed therein, and the housing portion is formed by engagement between the first wall and the second wall through melting of the projection that has passed through the hole and welding of the melted projection to the second wall.
    Type: Application
    Filed: August 13, 2021
    Publication date: December 2, 2021
    Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Takashi OSHINO, Yoshikazu KAMEI, Hiroshi SUYAMA, Naoyuki KOJIMA
  • Patent number: 11088393
    Abstract: A battery with excellent output characteristics and stability. The battery comprising a cathode, an anode and a separator disposed between the cathode and the anode, wherein the cathode comprises an aqueous electrolyte and a cathode active material; wherein the anode comprises an anode active material; wherein the separator comprises a first oxide electrolyte sintered body and a resin; wherein the first oxide electrolyte sintered body has grain boundaries between crystal particles of a garnet-type ion-conducting oxide represented by a general formula (A); wherein a number average particle diameter of the crystal particles is 3 ?m or less; and wherein the first oxide electrolyte sintered body satisfies the following formula 1: Rgb/(Rb+Rgb)?0.6 where Rb is an intragranular resistance value that is an ion conductivity resistance inside the crystal particles, and Rgb is a grain boundary resistance value that is an ion conductivity resistance of the grain boundaries between the crystal particles.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: August 10, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shinji Nakanishi, Hiroshi Suyama, Shingo Ohta
  • Patent number: 11069922
    Abstract: Provided is a liquid electrolyte for lithium ion batteries, which shows an increased oxidation-side potential in a potential window than ever before. A liquid electrolyte for lithium ion secondary batteries, the liquid electrolyte containing a lithium salt of a sulfonimide and water, wherein the liquid electrolyte contains at least one kind of anion selected from the group consisting of an orthophosphoric ion, a pyrophosphate ion, an anion resulting from dissociation of phosphorous acid or a salt thereof, and an anion resulting from dissociation of phosphinic acid or a salt thereof.
    Type: Grant
    Filed: November 24, 2017
    Date of Patent: July 20, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroshi Suyama
  • Publication number: 20210203010
    Abstract: A novel aqueous battery configured to use sulfuric acid ions (SO42?) as carrier ions. The aqueous battery is an aqueous battery comprising a cathode layer, an anode layer and an aqueous liquid electrolyte, wherein the cathode layer contains, as a cathode active material, a graphite; wherein the anode layer contains, as an anode active material, at least one selected from the group consisting of an elemental Zn, an elemental Cd, an elemental Fe, an elemental Sn, a Zn alloy, a Cd alloy, an Fe alloy, an Sn alloy, ZnSO4, CdSO4, FeSO4 and Sn5O4; wherein, as an electrolyte, at least one sulfate selected from the group consisting of ZnSO4, CdSO4, FeSO4 and Sn5O4 is dissolved in the aqueous liquid electrolyte; and wherein the aqueous liquid electrolyte has a pH of 3 or more and 14 or less.
    Type: Application
    Filed: December 10, 2020
    Publication date: July 1, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroshi SUYAMA
  • Publication number: 20210159482
    Abstract: Provided is an aqueous battery configured to use hydroxide ions (OH?) as carrier ions. The aqueous battery is an aqueous battery comprising a cathode layer, an anode layer and an aqueous liquid electrolyte, wherein the cathode layer contains, as a cathode active material, a graphite having a rhombohedral crystal structure; wherein the anode layer contains, as an anode active material, at least one selected from the group consisting of an elemental Zn, an elemental Cd, an elemental Fe, a Zn alloy, a Cd alloy, an Fe alloy, ZnO, Cd(OH)2, Fe(OH)2 and a hydrogen storage alloy; and wherein, as an electrolyte, at least one selected from the group consisting of KOH and NaOH is dissolved in the aqueous liquid electrolyte.
    Type: Application
    Filed: November 17, 2020
    Publication date: May 27, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroshi SUYAMA
  • Patent number: 10998547
    Abstract: There is provided a negative electrode current collector that is used in contact with an aqueous electrolyte solution in an aqueous lithium ion secondary battery, including a surface in contact with the aqueous electrolyte solution, the surface including a material containing at least one selected from the group consisting of Ti, Pb, Zn, Sn, Mg, Zr and In as a main component.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: May 4, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroshi Suyama, Hideki Nakayama
  • Publication number: 20200266509
    Abstract: It is an object of the disclosure to provide a novel air secondary battery, air secondary battery system, and vehicle with the mounted air secondary battery system. The air secondary battery of the disclosure comprises, as the negative electrode active material, an oxide that is capable of topotactic insertion and dissociation of oxygen atoms. The air secondary battery system of the disclosure has an air secondary battery and a heat source that supplies heat to the air secondary battery. The vehicle of the disclosure has the air secondary battery system described above mounted in it and uses the electric power provided by the air secondary battery as at least part of its drive power.
    Type: Application
    Filed: January 22, 2020
    Publication date: August 20, 2020
    Inventors: Takeo YAMAGUCHI, Hiroshi Suyama, Yutaka Hirose
  • Patent number: 10637116
    Abstract: Disclosed is an air cell with higher energy density than before. An air cell comprises an electrolyte solution containing a potassium hydroxide solution having a pH of 17.3 or more under a temperature condition of 23° C., an anode containing iron, and a cathode.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: April 28, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroshi Suyama
  • Publication number: 20190386346
    Abstract: To suppress electrolysis of an aqueous electrolyte solution on a surface of an anode when an aqueous potassium-ion battery is charged/discharged, in the aqueous electrolyte solution, potassium pyrophosphate is dissolved in water so that its concentration per kilogram of the water is no less than 2 mol. It is believed that thereby, a pyrophosphate ion is decomposed on the surface of the anode when the battery is charged/discharged, and a coating is formed on a portion of a high work function on the surface of the anode. As a result, direct contact between the aqueous electrolyte solution and the surface of the anode is suppressed, and electrolysis of the aqueous electrolyte solution on the surface of the anode is suppressed when the battery is charged/discharged.
    Type: Application
    Filed: April 24, 2019
    Publication date: December 19, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroshi SUYAMA
  • Publication number: 20190372172
    Abstract: Provided is a liquid electrolyte for lithium ion batteries, which shows an increased oxidation-side potential in a potential window than ever before. A liquid electrolyte for lithium ion secondary batteries, the liquid electrolyte containing a lithium salt of a sulfonimide and water, wherein the liquid electrolyte contains at least one kind of anion selected from the group consisting of an orthophosphoric ion, a pyrophosphate ion, an anion resulting from dissociation of phosphorous acid or a salt thereof, and an anion resulting from dissociation of phosphinic acid or a salt thereof.
    Type: Application
    Filed: November 24, 2017
    Publication date: December 5, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroshi SUYAMA
  • Publication number: 20190214687
    Abstract: Electrolysis of an aqueous electrolyte solution on a surface of an anode is suppressed when an aqueous lithium ion secondary battery is charged/discharged. In an aqueous electrolyte solution that is used for an aqueous lithium ion secondary battery, at least one metal cation selected from an aluminum ion, a titanium ion, a manganese ion, a zinc ion, a gallium ion, a yttrium ion, a zirconium ion, an indium ion, a lanthanum ion, a cerium ion, a neodymium ion, and a hafnium ion is contained so that its content is more than 0 mol and no more than 0.01 mol per kilogram of the aqueous electrolyte solution, in addition to a lithium ion and at least one imide based anion.
    Type: Application
    Filed: December 21, 2018
    Publication date: July 11, 2019
    Inventor: Hiroshi Suyama
  • Publication number: 20190207249
    Abstract: A battery with excellent output characteristics and stability. The battery comprising a cathode, an anode and a separator disposed between the cathode and the anode, wherein the cathode comprises an aqueous electrolyte and a cathode active material; wherein the anode comprises an anode active material; wherein the separator comprises a first oxide electrolyte sintered body and a resin; wherein the first oxide electrolyte sintered body has grain boundaries between crystal particles of a garnet-type ion-conducting oxide represented by a general formula (A); wherein a number average particle diameter of the crystal particles is 3 ?m or less; and wherein the first oxide electrolyte sintered body satisfies the following formula 1: Rgb/(Rb+Rgb)?0.6 where Rb is an intragranular resistance value that is an ion conductivity resistance inside the crystal particles, and Rgb is a grain boundary resistance value that is an ion conductivity resistance of the grain boundaries between the crystal particles.
    Type: Application
    Filed: December 26, 2018
    Publication date: July 4, 2019
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shinji Nakanishi, Hiroshi Suyama, Shingo Ohta
  • Patent number: 10297886
    Abstract: An electrolyte for metal-air batteries, which is able to inhibit self-discharge of metal-air batteries, and a metal-air battery using the electrolyte. The electrolyte for metal-air batteries containing an aqueous solution that comprises at least one self-discharge inhibitor selected from the group consisting of M2HPO4, M3PO4, M4P2O7, MH2PO2, M2H2P2O7, LHPO4, MLPO4, L2P2O7 and LH2P2O7, where M is any one selected from the group consisting of Li, K, Na, Rb, Cs and Fr, and L is any one selected from the group consisting of Mg, Ca, Sr, Ba and Ra.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: May 21, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroshi Suyama
  • Patent number: 10270143
    Abstract: An electrolyte for metal-air batteries, which is able to inhibit the self-discharge of metal-air batteries, and a metal-air battery using the electrolyte. The electrolyte for metal-air batteries having an anode containing at least one kind of metal element selected from aluminum and magnesium, may comprise an aqueous solution comprising a self-discharge inhibitor containing at least one kind of ion selected from the group consisting of an H2P2O72? anion and a Ca2+ cation and at least one kind of ion selected from the group consisting of a CH3S? anion, an S2O32? anion and an SCN? anion.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: April 23, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroshi Suyama, Tomohiro Kuroki, Kazushi Wakayama, Gen Ikeda
  • Publication number: 20190089007
    Abstract: Provided is an aqueous lithium ion secondary battery configured to ensure cycle stability. Disclosed is an aqueous lithium ion secondary battery comprising: an aqueous liquid electrolyte comprising water and an electrolyte, an anode active material layer comprising an anode active material, and an anode current collector, wherein a charge potential of the anode active material calculated from a current value of a reduction peak observed by cyclic voltammetry measurement using the anode active material and the aqueous liquid electrolyte, is a more noble potential than a reduction decomposition potential of the aqueous liquid electrolyte on carbon, and it is a more base potential than the reduction decomposition potential of the aqueous liquid electrolyte on the anode current collector, wherein the anode active material comprises a titanium oxide, and wherein the anode active material comprises a carbon coating layer on a surface thereof.
    Type: Application
    Filed: September 10, 2018
    Publication date: March 21, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroshi SUYAMA, Hideki NAKAYAMA