Patents by Inventor Tatsumi Ishihara

Tatsumi Ishihara 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: 11367576
    Abstract: An electrode for a power storage device includes a non-woven fabric current collector that comprises short fibers of aluminum or copper having an average length of 25 mm or less; and adsorbent material powder on which electrolyte ions are adsorbed during charging or active material powder which chemically react during charging and discharging, where the powder exists in the gaps formed between the short fibers of the non-woven fabric current collector.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: June 21, 2022
    Assignee: Charles Metallic & Solar Materials Co., Ltd.
    Inventors: Shunji Hasuo, Tatsumi Ishihara
  • Publication number: 20220062881
    Abstract: It is desired to develop a method of producing hydrogen peroxide, which is capable of producing hydrogen peroxide with high production efficiency. According to the present invention, provided is a palladium-containing composition comprising palladium particles and a coating agent that coats the surface of the palladium particles, wherein a compound having an O?X structure (wherein X represents any of a phosphorus atom, a sulfur atom, and a carbon atom) is comprised as the coating agent.
    Type: Application
    Filed: September 12, 2019
    Publication date: March 3, 2022
    Applicants: MITSUBISHI GAS CHEMICAL COMPANY, INC., KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
    Inventors: Tatsumi ISHIHARA, Norikazu OKUDA, Ken-ichi KIMIZUKA, Ken TASAKI
  • Publication number: 20190304709
    Abstract: An electrode for a power storage device includes a non-woven fabric current collector that comprises short fibers of aluminum or copper having an average length of 25 mm or less; and adsorbent material powder on which electrolyte ions are adsorbed during charging or active material powder which chemically react during charging and discharging, where the powder exists in the gaps formed between the short fibers of the non-woven fabric current collector.
    Type: Application
    Filed: June 19, 2019
    Publication date: October 3, 2019
    Inventors: Shunji Hasuo, Tatsumi Ishihara
  • Patent number: 10431840
    Abstract: Provided are a membrane electrode assembly, including a solid electrolyte layer, an anode layer provided on one side of the solid electrolyte layer, and a cathode layer provided on the other side of the solid electrolyte layer, the anode layer being stacked on the solid electrolyte layer to be pressed thereagainst, the anode layer including a porous anode member having electrical conductivity; and a method for manufacturing the same.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: October 1, 2019
    Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
    Inventors: Chihiro Hiraiwa, Masatoshi Majima, Hiromasa Tawarayama, Takahiro Higashino, Yohei Noda, Naho Mizuhara, Tatsumi Ishihara
  • Patent number: 9919923
    Abstract: An object of the present invention is to provide a method by which hydrogen peroxide can be produced at a satisfactory level from an industrial and economical viewpoint without causing the load of purification to be large and without needing too large facilities for production. The present invention is directed to a method for producing hydrogen peroxide, which comprises reacting hydrogen and oxygen in a reaction medium in the presence of a noble metal catalyst and a radical scavenger.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: March 20, 2018
    Assignees: MITSUBISHI GAS CHEMICAL COMPANY, INC., KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
    Inventors: Tatsumi Ishihara, Kohei Shigeta, Katsuhiro Iura, Kenji Kato, Norikazu Okuda
  • Patent number: 9754726
    Abstract: To provide a nonaqueous electrolytic capacitor element, which contains: a positive electrode containing a positive electrode active material capable of intercalating or deintercalating anions; a negative electrode containing a negative electrode active material; and a nonaqueous electrolyte, which contains a nonaqueous solvent, an electrolyte salt containing a halogen atom, and a compound having a site capable of bonding to an anion containing a halogen atom.
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: September 5, 2017
    Assignees: Ricoh Company, Ltd., Kyushu University
    Inventors: Nobuaki Onagi, Okitoshi Kimura, Eiko Hibino, Hisamitsu Kamezaki, Tatsumi Ishihara
  • Publication number: 20170207745
    Abstract: A self-contained energy supply facility can supply an automotive hydrogen fuel that has been produced by utilizing solar energy, and can also supply electrical energy for an electric vehicle that has been produced by utilizing solar energy.
    Type: Application
    Filed: February 4, 2015
    Publication date: July 20, 2017
    Inventors: Tatsumi ISHIHARA, Tetsu YAMAYOSHI, Shigenori KOIDE, Junichi KOSEKI
  • Publication number: 20170133699
    Abstract: Provided are a membrane electrode assembly, including a solid electrolyte layer, an anode layer provided on one side of the solid electrolyte layer, and a cathode layer provided on the other side of the solid electrolyte layer, the anode layer being stacked on the solid electrolyte layer to be pressed thereagainst, the anode layer including a porous anode member having electrical conductivity; and a method for manufacturing the same.
    Type: Application
    Filed: June 23, 2015
    Publication date: May 11, 2017
    Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., KYUSHU UNIVERSITY, NATIONAL UNIVERSITY COPRORATION
    Inventors: Chihiro HIRAIWA, Masatoshi MAJIMA, Hiromasa TAWARAYAMA, Takahiro HIGASHINO, Yohei NODA, Naho MIZUHARA, Tatsumi ISHIHARA
  • Publication number: 20160260972
    Abstract: To provide a non-aqueous electrolyte storage element including a positive electrode containing a positive electrode active material capable of inserting and eliminating anions, a negative electrode containing a negative electrode active material capable of inserting and eliminating cations, and a non-aqueous electrolyte prepared by dissolving an electrolyte salt in a non-aqueous solvent, wherein the positive electrode active material contains a carbon material, where a distance between (002) planes, d(002), of the carbon material as measured by X-ray diffraction is 0.340 nm or greater but 0.360 nm or less, and the carbon material has a BET specific surface area of greater than 1 m2/g but smaller than 30 m2/g, and the negative electrode active material contains a material capable of inserting and eliminating lithium ions.
    Type: Application
    Filed: February 22, 2016
    Publication date: September 8, 2016
    Inventors: Eiko HIBINO, Okitoshi KIMURA, Nobuaki ONAGI, Satoshi NAKAJIMA, Anna HIROWATARI, Takashi YAMAGATA, Tatsumi ISHIHARA, Yoshihisa TANAKA, Ryo OSHIMA, Toshihiro NAKABO
  • Patent number: 9431689
    Abstract: There is provided a lithium-air secondary cell having an air electrode, a negative electrode containing metal lithium or a lithium-containing material and a gel-form solid electrolyte, wherein the gel-form solid electrolyte contains a solid electrolyte salt, a solvent, and a specific lipid peptide-type gelator composed.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: August 30, 2016
    Assignees: NISSAN CHEMICAL INDUSTRIES, LTD., KYUSHU UNIVERSITY
    Inventors: Tatsumi Ishihara, Shigeru Mitsui, Nobuhide Miyachi
  • Publication number: 20150287537
    Abstract: To provide a nonaqueous electrolytic capacitor element, which contains: a positive electrode containing a positive electrode active material capable of intercalating or deintercalating anions; a negative electrode containing a negative electrode active material; and a nonaqueous electrolyte, which contains a nonaqueous solvent, an electrolyte salt containing a halogen atom, and a compound having a site capable of bonding to an anion containing a halogen atom.
    Type: Application
    Filed: November 11, 2013
    Publication date: October 8, 2015
    Applicants: Ricoh Company, Ltd., Kyushu University
    Inventors: Nobuaki Onagi, Okitoshi Kimura, Eiko Hibino, Hisamitsu Kamezaki, Tatsumi Ishihara
  • Patent number: 9111684
    Abstract: To provide a non-aqueous electrolyte storage element, including: a positive electrode which includes a positive-electrode active material capable of intercalating or deintercalating anions; a negative electrode which includes a negative-electrode active material capable of storing or releasing metallic lithium or lithium ion, or both thereof; a first separator between the positive electrode and the negative electrode; and a non-aqueous electrolyte which includes a non-aqueous solvent and a lithium salt dissolved in the non-aqueous solvent, wherein the non-aqueous electrolyte storage element includes a solid lithium salt at 25° C. and a discharge voltage of 4.0 V, wherein the non-aqueous electrolyte storage element includes an ion-exchange membrane between the first separator and the positive electrode, between the first separator and the negative electrode, or between the first separator and the positive electrode and between the first separator and the negative electrode.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: August 18, 2015
    Assignees: Ricoh Company, Ltd., Kyushu University
    Inventors: Nobuaki Onagi, Eiko Hibino, Tatsumi Ishihara
  • Publication number: 20150139892
    Abstract: An object of the present invention is to provide a method by which hydrogen peroxide can be produced at a satisfactory level from an industrial and economical viewpoint without causing the load of purification to be large and without needing too large facilities for production. The present invention is directed to a method for producing hydrogen peroxide, which comprises reacting hydrogen and oxygen in a reaction medium in the presence of a noble metal catalyst and a radical scavenger.
    Type: Application
    Filed: June 17, 2013
    Publication date: May 21, 2015
    Applicants: MITSUBISHI GAS CHEMICAL COMPANY, INC., KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
    Inventors: Tatsumi Ishihara, Kohei Shigeta, Katsuhiro Iura, Kenji Kato, Norikazu Okuda
  • Publication number: 20140295296
    Abstract: There is provided a lithium-air secondary cell having an air electrode, a negative electrode containing metal lithium or a lithium-containing material and a gel-form solid electrolyte, wherein the gel-form solid electrolyte contains a solid electrolyte salt, a solvent, and a specific lipid peptide-type gelator composed.
    Type: Application
    Filed: October 12, 2012
    Publication date: October 2, 2014
    Inventors: Tatsumi Ishihara, Shigeru Mitsui, Nobuhide Miyachi
  • Publication number: 20140186696
    Abstract: To provide a nonaqueous electrolyte secondary battery, containing: a positive electrode, which contains a positive electrode active material capable of inserting and detaching anions; a negative electrode, which contains a negative electrode active material capable of accumulating and releasing metal lithium, or lithium ions, or both thereof; and a nonaqueous electrolyte formed by dissolving a lithium salt in a nonaqueous solvent, wherein the nonaqueous electrolyte secondary battery contains a solid lithium salt at 25° C., and discharge voltage of 4.0 V.
    Type: Application
    Filed: March 10, 2014
    Publication date: July 3, 2014
    Inventors: Nobuaki ONAGI, Eiko Hibino, Susumu Okada, Tatsumi Ishihara
  • Patent number: 8603699
    Abstract: A proton conductive electrolyte (20) is made of AB(1-x)MxO3 structure perovskite, and is characterized in that: the B is Ce; the M is a metal having valence that is smaller than +4; and an average of an ion radius of the M is less than an ion radius of Tm3+ and more than 56.4 pm.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: December 10, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Naoki Ito, Hiroshige Matsumoto, Tatsumi Ishihara
  • Publication number: 20130288113
    Abstract: To provide a non-aqueous electrolyte storage element, including: a positive electrode which includes a positive-electrode active material capable of intercalating or deintercalating anions; a negative electrode which includes a negative-electrode active material capable of storing or releasing metallic lithium or lithium ion, or both thereof, a first separator between the positive electrode and the negative electrode; and a non-aqueous electrolyte which includes a non-aqueous solvent and a lithium salt dissolved in the non-aqueous solvent, wherein the non-aqueous electrolyte storage element includes a solid lithium salt at 25° C. and a discharge voltage of 4.0V, wherein the non-aqueous electrolyte storage element includes an ion-exchange membrane between the first separator and the positive electrode, between the first separator and the negative electrode, or between the first separator and the positive electrode and between the first separator and the negative electrode.
    Type: Application
    Filed: April 25, 2013
    Publication date: October 31, 2013
    Inventors: Nobuaki Onagi, Eiko Hibino, Susumu Okada, Tatsumi Ishihara
  • Publication number: 20110111323
    Abstract: An electrolyte membrane for electrochemical cells, that has oxide ion permeability properties, and methods for producing the same, is made of an oxide ion conductor having a component composition expressed by a general formula: La1-XSrXGa1-YMgYO3 (where X=0.05 to 0.3, and Y=0.025 to 0.3), and having a perovskite type crystal structure, wherein the electrolyte membrane has a thickness of 1 to 10 ?m and a columnar crystal structure grown to a membrane surface in a direction perpendicular to a membrane face, and wherein the perovskite type crystal structure of the electrolyte membrane having the columnar crystal structure grown to the membrane surface, has a crystal structure with [112] direction oriented perpendicularly to the membrane face.
    Type: Application
    Filed: January 19, 2011
    Publication date: May 12, 2011
    Inventors: Tatsumi ISHIHARA, Takashi YAMADA
  • Publication number: 20100304229
    Abstract: A proton conductor includes a main constituent element. A part of the main constituent element is substituted by a transition metal. Valence of the transition metal is variable between valence of the main constituent element and valence lower than the valence of the main constituent element.
    Type: Application
    Filed: March 25, 2008
    Publication date: December 2, 2010
    Inventors: Naoki Ito, Hiroshige Matsumoto, Sachio Okada, Tatsumi Ishihara
  • Publication number: 20090169953
    Abstract: An electrochemical cell including a proton conductor as an electrolyte with superior stability, particularly against gases containing carbon dioxide, is provided. A proton-conductive electrolyte 21 used for an electrochemical cell 20B was a ceramic having the composition SrZr0.5Ce0.4Y0.1O3??. As the cathode, a thin film of a proton conductor having the composition SrCe0.95Yb0.05O3??was provided on the electrolyte 21 as an intermediate layer 22, and a porous platinum electrode 23c was provided thereon. The anode used was a palladium electrode 23a. A cell 20A including no intermediate layer 22 had a high overvoltage approaching 600 mV at a low current density, namely, 70 mA/cm2. In contrast, the cell 20B, including the intermediate layer 21, had a low overvoltage, namely, about 170 mV, at a current density of 680 mA/cm2.
    Type: Application
    Filed: November 21, 2006
    Publication date: July 2, 2009
    Inventors: Hiroshige Matsumoto, Hitoshi Takamura, Tatsumi Ishihara