Patents by Inventor Ryuta SUGIURA

Ryuta SUGIURA 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: 11877423
    Abstract: A thermal management system to cool one or more battery packs of a battery system may include a heat pipe arrangement that includes a plurality of heat pipes, having a planar configuration, in thermal contact with the one or more battery packs to draw heat therefrom, and a heat sink arrangement that includes a plurality of heat sinks, in thermal contact with two or more edges of the heat pipe arrangement, to dissipate heat away from the heat pipe arrangement.
    Type: Grant
    Filed: October 8, 2020
    Date of Patent: January 16, 2024
    Assignees: Toyota Motor Engineering and Manufacturing North America, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Gaohua Zhu, Tenghua Tom Shieh, Evan B. Fleming, Swetha Minupuri, Debasish Banerjee, Ryuta Sugiura, Yusuke Suzuki, Takayoshi Tanaka, Satoko Tofukuji
  • Patent number: 11827526
    Abstract: An inorganic compound for a Li-ion conductor includes an oxyhalide compound with a chemical composition of MOX where M is at least one of Al, Sc, La, and Y, and X is at least one of F, Cl, Br, and I. Also, the oxyhalide compound has a thermal decomposition start temperature of the oxyhalide compound is greater than a thermal decomposition start temperature of FeOCl and a conductivity that is general equal to or greater than a conductivity of the FeOCl.
    Type: Grant
    Filed: April 29, 2022
    Date of Patent: November 28, 2023
    Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Shingo Ota, Ryuta Sugiura, Timothy S. Arthur, Nikhilendra Singh
  • Publication number: 20230348293
    Abstract: An inorganic compound for a Li-ion conductor includes an oxyhalide compound with a chemical composition of MOX where M is at least one of Al, Sc, La, and Y, and X is at least one of F, Cl, Br, and I. Also, the oxyhalide compound has a thermal decomposition start temperature of the oxyhalide compound is greater than a thermal decomposition start temperature of FeOCl and a conductivity that is general equal to or greater than a conductivity of the FeOCl.
    Type: Application
    Filed: April 29, 2022
    Publication date: November 2, 2023
    Applicants: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Shingo Ota, Ryuta Sugiura, Timothy S. Arthur, Nikhilendra Singh
  • Patent number: 11777083
    Abstract: A non-aqueous electrolyte secondary battery disclosed herein includes a positive electrode containing a positive electrode active material, a negative electrode, and a non-aqueous electrolyte, and the positive electrode active material includes a positive electrode active material particle containing a lithium transition metal compound, and a coating portion coating at least a part of a surface of the positive electrode active material particle. The coating portion contains a lithium ionic conductor containing lithium, a phosphoric acid group, and at least one element of lanthanum (La) and cerium (Ce).
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: October 3, 2023
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, DAIICHI KIGENSO KAGAKU KOGYO CO., LTD.
    Inventors: Ryuta Sugiura, Daisuke Horikawa, Sadahiro Yagishita, Taku Nishikawa
  • Patent number: 11764398
    Abstract: A method of synthesizing an inorganic precursor for an ionic conductor includes mixing at least one oxide of M with at least one halide of M, heating the mixture of the at least one oxide of M and the at least one halide of M and forming an MOX inorganic oxyhalide compound, and injecting defects in the MOX inorganic oxyhalide compound and forming a defect doped (MOX)? precursor for an ionic conductor. The element or component M is selected from at least one of Fe, Al, La, and Y, the at least one halide of M is selected from at least one of a fluoride of M, a chloride of M, a bromide of M, and an iodide of M, and the element or component X is at least one of F, Cl, Br, and I.
    Type: Grant
    Filed: April 29, 2022
    Date of Patent: September 19, 2023
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Shingo Ota, Ryuta Sugiura, Timothy S. Arthur, Nikhilendra Singh
  • Patent number: 11539072
    Abstract: A lithium-ion conducting composite material includes a Li binary salt, a Li-ion conductor with a chemical composition of Li2?3x+y?zFexOy(OH)1?yCl1?z, and at least two of: a first inorganic compound with a chemical composition of (Fe1?xM1x)O1?y(OH)yCl1?x; a second inorganic compound with a chemical composition of M2OX; and a defected doped inorganic compound with a chemical composition of (M3OX)?. The value of n is 1 or 2, x is greater than 0 and less than or equal to 0.25, and y is greater than or equal to 0 and less than or equal to 0.25. Also, M1 is at least one of Mg and Ca, M2 and M3 are each at least one of Fe, Al, Sc, La, and Y, and X is at least one of F, Cl, Br, and I.
    Type: Grant
    Filed: April 29, 2022
    Date of Patent: December 27, 2022
    Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Shingo Ota, Ryuta Sugiura, Timothy S. Arthur, Nikhilendra Singh
  • Publication number: 20220393141
    Abstract: A method of producing a wet mixture includes a stirring and mixing process in which lithium-containing positive electrode active material particles having surplus lithium compounds on the surface and crystalline ferroelectric ceramic particles are dried, stirred and mixed to obtain a mixed powder; and a solution mixing process in which a lithium conductor forming solution is mixed with the mixed powder to obtain a wet mixture containing coated lithium-containing positive electrode active material particles having a coating which is made of an amorphous lithium conductor and in which the ferroelectric ceramic particles are dispersed on the surface of the lithium-containing positive electrode active material particles.
    Type: Application
    Filed: August 12, 2022
    Publication date: December 8, 2022
    Inventors: Tomohiro YOKOYAMA, Ryuta SUGIURA, Daisuke HORIKAWA
  • Patent number: 11522218
    Abstract: An ionic conductor includes an inorganic oxychloride compound with a chemical composition of (Fe1-xMx)O1-y(OH)yCl1-x where M is selected from at least one of Mg and Ca, and x is greater than 0 and less than or equal to 0.25, y is greater than or equal to 0 and less than or equal to 0.25. The inorganic oxychloride compound has a thermal decomposition start temperature of about 410° C. and x-ray diffraction peaks (2?) between about 20.79° and about 22.79°, between about 30.03° and about 32.03°, between about 39.47° and about 41.47°, and between about 76.44° and about 78.44°.
    Type: Grant
    Filed: April 29, 2022
    Date of Patent: December 6, 2022
    Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Shingo Ota, Ryuta Sugiura, Timothy S. Arthur, Nikhilendra Singh
  • Patent number: 11508954
    Abstract: A non aqueous electrolyte secondary battery includes a positive electrode containing a positive electrode active material, a negative electrode, and a non aqueous electrolyte, and the positive electrode active material includes a positive electrode active material particle containing a lithium transition metal compound, and a coating portion coating at least a part of a surface of the positive electrode active material particle. The coating portion contains a lithium ionic conductor containing lithium, a phosphoric acid group, and yttrium. The lithium ionic conductor includes a region A in which a ratio of yttrium is relatively rich and a region B in which the ratio of yttrium is relatively poor.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: November 22, 2022
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, DAIICHI KIGENSO KAGAKU KOGYO CO., LTD.
    Inventors: Ryuta Sugiura, Daisuke Horikawa, Sadahiro Yagishita, Taku Nishikawa
  • Patent number: 11450840
    Abstract: A method of producing a wet mixture includes a stirring and mixing process in which lithium-containing positive electrode active material particles having surplus lithium compounds on the surface and crystalline ferroelectric ceramic particles are dried, stirred and mixed to obtain a mixed powder; and a solution mixing process in which a lithium conductor forming solution is mixed with the mixed powder to obtain a wet mixture containing coated lithium-containing positive electrode active material particles having a coating which is made of an amorphous lithium conductor and in which the ferroelectric ceramic particles are dispersed on the surface of the lithium-containing positive electrode active material particles.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: September 20, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tomohiro Yokoyama, Ryuta Sugiura, Daisuke Horikawa
  • Patent number: 11430986
    Abstract: The positive electrode active material disclosed herein includes a base portion including a lithium transition metal complex oxide having a layered crystal structure, and a coating portion including an electroconductive oxide having a layered crystal structure. A smaller angle ? formed by a stacking plane direction of the lithium transition metal complex oxide and a stacking plane direction of the electroconductive oxide satisfies the following conditions: an average angle ?ave. obtained by arithmetically averaging the angle ? satisfies 0°??ave.?60°; and a ratio of points in which the angle ? is greater than 60° is 39% or less.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: August 30, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Ryuta Sugiura
  • Publication number: 20220267166
    Abstract: A lithium-ion conductor includes an inorganic compound with a chemical composition of Li2?3x+y?zFexOy(OH)1?yCl1?z, where x is greater than or equal to 0 and less than 1, y is greater than or equal to 0 and less than or equal 1, and z is greater than or equal to 0 and less than or equal 0.25. Also, the inorganic compound has or exhibits a thermal decomposition temperature greater than 390° C., an ionic conductivity greater than about 1.0×10?4 S/cm at 25° C., and has a crystal structure that reflects or exhibits x-ray diffraction peaks with a 2? between about 22.12° and about 24.12°, between about 31.97° and about 33.97°, between about 39.55° and about 41.55°, between about 46.46° and about 48.46°, between about 57.77° and about 59.77°, and between about 68.04° and about 70.04°.
    Type: Application
    Filed: April 29, 2022
    Publication date: August 25, 2022
    Applicants: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Shingo Ota, Ryuta Sugiura, Timothy S. Arthur, Nikhilendra Singh
  • Patent number: 11404746
    Abstract: A battery includes at least an electrode array and an electrolyte solution. The electrolyte solution contains at least a solvent and a supporting salt. The electrode array includes at least a positive electrode, a porous insulating layer, and a negative electrode. The porous insulating layer is interposed between the positive electrode and the negative electrode. The porous insulating layer contains at least a group of inorganic nanoparticles and a group of polymer particles. Each inorganic nanoparticle in the group of inorganic nanoparticles is a dielectric. Each inorganic nanoparticle in the group of inorganic nanoparticles is in contact with the electrolyte solution.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: August 2, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kunihiko Hayashi, Ryuta Sugiura, Hiroto Asano, Tsuyoshi Sasaki, Chikaaki Okuda
  • Patent number: 11380906
    Abstract: According to an aspect of the present invention, there is provided a positive electrode material which contains a positive electrode active material, and a dielectric material having a perovskite crystal structure. In the positive electrode material, in an X-ray diffraction pattern (vertical axis: diffraction intensity, horizontal axis: diffraction angle 2? (rad)) obtained by X-ray diffraction measurement using a CuK? ray, a highest intensity peak which is a peak derived from the dielectric material and has the highest intensity is in a range satisfying 2?=31° to 32°, and a half width x of the highest intensity peak satisfies the following expression: 0.22?x?0.33.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: July 5, 2022
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, NATIONAL UNIVERSITY CORPORATION OKAYAMA UNIVERSITY
    Inventors: Daisuke Horikawa, Ryuta Sugiura, Takashi Teranishi
  • Patent number: 11374210
    Abstract: Provided is a positive electrode material that allows reducing battery resistance. The positive electrode material disclosed herein has particles of a positive electrode active material, each having a void communicating between the surface and at least the interior; and an electronic conductor present on the surface of the particles of the positive electrode active material. The positive electrode active material has a layered rock salt structure, and has a composition represented by Formula (I) below. The electronic conductor has a composition represented by Formula (II) below, Li1+uNixMnyCozMtO2??(I) La1?pMapCo1?qMbqO3????(II) wherein the symbols in the formulas are as defined in the specification.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: June 28, 2022
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, SUMITOMO METAL MINING CO., LTD.
    Inventors: Ryuta Sugiura, Taira Aida, Tetsutaro Hayashi, Satoshi Kanada
  • Publication number: 20220117116
    Abstract: A thermal management system to cool one or more battery packs of a battery system may include a heat pipe arrangement that includes a plurality of heat pipes, having a planar configuration, in thermal contact with the one or more battery packs to draw heat therefrom, and a heat sink arrangement that includes a plurality of heat sinks, in thermal contact with two or more edges of the heat pipe arrangement, to dissipate heat away from the heat pipe arrangement.
    Type: Application
    Filed: October 8, 2020
    Publication date: April 14, 2022
    Applicant: Toyota Motor Engineering and Manufacturing North America, Inc.
    Inventors: Gaohua Zhu, Tenghua Tom Shieh, Evan B. Fleming, Swetha Minupuri, Debasish Banerjee, Ryuta Sugiura, Yusuke Suzuki, Takayoshi Tanaka, Satoko Tofukuji
  • Patent number: 11171331
    Abstract: A method of manufacturing a positive electrode material for lithium ion secondary battery includes the following (?) and (?): (?) a positive electrode active material is prepared; and (?) the positive electrode material for lithium ion secondary battery is manufactured by forming a coat on at least a portion of a surface of the positive electrode active material. The coat is formed to satisfy the following (1) to (3): (1) the coat includes a lithium ion conductor and a ferroelectric substance; (2) the ferroelectric substance is dispersed in the lithium ion conductor; and (3) the lithium ion conductor is interposed at least partially between the positive electrode active material and the ferroelectric substance.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: November 9, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Daisuke Horikawa, Ryuta Sugiura
  • Patent number: 11139470
    Abstract: A method of manufacturing a positive electrode material for lithium ion secondary battery includes the following (?) and (?): (?) a positive electrode active material is prepared; and (?) the positive electrode material for lithium ion secondary battery is manufactured by forming a coat on at least a portion of a surface of the positive electrode active material. The coat is formed to satisfy the following (1) to (3): (1) the coat includes a lithium ion conductor and a ferroelectric substance; (2) the ferroelectric substance is dispersed in the lithium ion conductor; and (3) the lithium ion conductor is interposed at least partially between the positive electrode active material and the ferroelectric substance.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: October 5, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Daisuke Horikawa, Ryuta Sugiura
  • Publication number: 20210305568
    Abstract: To provide a cathode active material capable of reducing cathode resistance of a secondary battery by enhancing electron conductivity thereof without reducing discharge capacity of the secondary battery. Lanthanum compound particles each having a perovskite-type structure are dispersed on surfaces of secondary particles of a lithium transition metal-containing composite oxide and/or in gaps or grain boundaries between primary particles thereof. The lanthanum compound particles have a cross-sectional average particle size of 0.70 ?m or less. The number of lanthanum compound particles present per unit area of the cross sections of the secondary particles is 0.03 particles/?m2 to 0.10 particles/?m2, and the number of lanthanum compound particles present per unit area of the surfaces of the secondary particles is 0.01 particles/m?2 to 0.25 particles/?m2. The content of lanthanum with respect to the entire cathode active material is within a range of 0.1% by mass to 5% by mass.
    Type: Application
    Filed: July 3, 2019
    Publication date: September 30, 2021
    Applicants: SUMITOMO METAL MINING CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Satoshi Kanada, Tetsutaro Hayashi, Ryuta Sugiura
  • Patent number: 11133505
    Abstract: The present disclosure relates to a positive electrode material for a lithium secondary battery which includes a positive electrode active material and a dielectric. The dielectric is a composite oxide represented by a general formula AmBnO? and has a dielectric constant of 10 to 500. Here, m and n are real numbers that satisfy 1.01?m/n?1.6, ? is a value that is determined so that charge neutral conditions are satisfied, A is one or more elements among alkali metal elements, alkaline earth metal elements, rare earth elements, Cu, Pb and Bi, and B is one or more elements among transition metal elements and Sn.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: September 28, 2021
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, NATIONAL UNIVERSITY CORPORATION OKAYAMA UNIVERSITY
    Inventors: Daisuke Horikawa, Ryuta Sugiura, Takashi Teranishi