Patents by Inventor Ryuhei Matsumoto

Ryuhei Matsumoto 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: 20200176774
    Abstract: Provided is a magnesium secondary battery including a positive electrode member 23 including at least a positive electrode active material layer 23B, a separator 24 disposed facing the positive electrode member 23, a negative electrode member 25 containing magnesium or a magnesium compound disposed facing the separator 24, and an electrolytic solution containing a magnesium salt. The positive electrode active material layer 23B includes magnesium sulfide having a zinc blende type crystal structure.
    Type: Application
    Filed: December 19, 2019
    Publication date: June 4, 2020
    Inventors: Kazuhiro KAMIGUCHI, Ryuhei MATSUMOTO, Kiyoshi KUMAGAE, Shizuka HOSOI, Yuri NAKAYAMA
  • Publication number: 20200075999
    Abstract: An electrochemical device including a negative electrode made of a magnesium-based material includes an electrolyte solution consisting of a solvent composed of linear ether, and magnesium salt dissolved in the solvent, in which the magnesium salt is dissolved in 3 moles or more per liter of the solvent.
    Type: Application
    Filed: August 20, 2019
    Publication date: March 5, 2020
    Inventors: Ryuhei MATSUMOTO, Daisuke MORI, Yuri NAKAYAMA
  • Publication number: 20190157719
    Abstract: An electrolytic solution for an electrochemical device including a negative electrode is provided. The negative electrode includes a magnesium-based material, and the electrolytic solution includes a 2,2,6,6-tetramethylpiperidine-1-oxyl free radical or a derivative of the 2,2,6,6-tetramethylpiperidine-1-oxyl free radical.
    Type: Application
    Filed: January 25, 2019
    Publication date: May 23, 2019
    Inventors: Ryuhei MATSUMOTO, Yuri NAKAYAMA, Tadahiko KUBOTA
  • Publication number: 20190036114
    Abstract: A positive electrode active material for multivalent-ion secondary battery is provided. The positive electrode active material includes sulfur, and the sulfur is coated with a polyethylene dioxythiophene-based conductive polymer doped with a sulfonic acid-based compound.
    Type: Application
    Filed: September 28, 2018
    Publication date: January 31, 2019
    Inventors: Ryuhei MATSUMOTO, Daisuke MORI, Yuri NAKAYAMA, Hideki KAWASAKI
  • Publication number: 20180138552
    Abstract: An electrolytic solution is an electrolytic solution for an electrochemical device including a negative electrode including a magnesium-based material, and has a moisture content of more than 10 ppm and less than 500 ppm. The electrochemical device including a negative electrode including a magnesium-based material includes an electrolytic solution having a moisture content of more than 10 ppm and less than 500 ppm.
    Type: Application
    Filed: May 18, 2016
    Publication date: May 17, 2018
    Inventors: Ryuhei MATSUMOTO, Yuri NAKAYAMA, Tadahiko KUBOTA
  • Publication number: 20170338483
    Abstract: An electrode includes at least magnesium, carbon, oxygen, sulfur, and halogen. The electrode also has a surface exhibiting a single peak derived from magnesium in the range of 40 eV to 60 eV.
    Type: Application
    Filed: December 10, 2015
    Publication date: November 23, 2017
    Inventors: YURI NAKAYAMA, RYUHEI MATSUMOTO, HIDEKI KAWASAKI
  • Publication number: 20170162908
    Abstract: An electrolytic solution includes a sulfone and a magnesium salt dissolved in the sulfone, in which the magnesium salt includes magnesium borohydride (Mg(BH4)2).
    Type: Application
    Filed: April 20, 2015
    Publication date: June 8, 2017
    Inventors: Yuri NAKAYAMA, Ryuhei MATSUMOTO, Hideki KAWASAKI
  • Patent number: 8911908
    Abstract: Provided is a fuel cell that is high in performance capabilities of initial power generation and in volume power density, and produces a stable power. Between fixing plates, first and second cell portions are provided. The first cell portion includes an anode, a cathode, and a proton conductor, and the second cell portion includes an anode, a cathode, and a proton conductor. To a space formed by gas-liquid separation and permeable films, cathode spacers, and an anode spacer, a fuel solution is filled. The gas-liquid separation and permeable films are disposed between the fixing plate and the cathode, and between the fixing plate and the cathode. The cathode spacers are provided around the cathodes, respectively, and the anode spacer is provided between the anodes.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: December 16, 2014
    Assignee: Sony Corporation
    Inventors: Hideki Sakai, Takaaki Nakagawa, Hideyuki Kumita, Hiroki Mita, Yasuhide Hosoda, Taiki Sugiyama, Ryuhei Matsumoto
  • Publication number: 20140287328
    Abstract: Provided is a method for producing a fuel battery in which an oxidoreductase has been fixed as a catalyst on at least one electrode of a negative electrode or a positive electrode, including conducting at least a step of preparing an electrode pattern, in which an electrode material containing at least electroconductive particles is printed on the surface of a bendable non-electroconductive sheet, and a step of preparing a negative electrode and a positive electrode, in which a negative electrode and a positive electrode are made by printing a predetermined oxidoreductase on the electrode pattern prepared in the step of preparing an electrode pattern.
    Type: Application
    Filed: October 19, 2012
    Publication date: September 25, 2014
    Inventors: Tsunetoshi Samukawa, Hideyuki Kumita, Taiki Sugiyama, Hiroki Mita, Takaaki Nakagawa, Ryuhei Matsumoto
  • Patent number: 8841036
    Abstract: Disclosed herein is a flexible fuel cell including, one or a plurality of cell sections, and a sealing sheet covering the cell section or sections, wherein the cell section has, at least, a pair of electrode sheets which form an anode and a cathode and at least one of which is accompanied by an oxidoreductase present at a surface thereof, a separator which is disposed between the electrode sheets and which has a proton-permeable membrane, a pair of current collectors which are electrically conductively connected respectively to the electrode sheets with a conductive adhesive, and a fuel reservoir section which is provided at such a position as to make contact with the anode at least and in which a fuel solution containing a fuel component is reserved.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: September 23, 2014
    Assignee: Sony Corporation
    Inventors: Shuji Fujita, Takaaki Nakagawa, Ryuhei Matsumoto, Hideyuki Kumita, Daisuke Yamaguchi
  • Publication number: 20140024102
    Abstract: As a technique for increasing the output of a microbial fuel cell, a microbial fuel cell including a polyol such as glycerol as a fuel and using a microbe in which an enzyme that catalyzes a redox reaction has been introduced by genetic recombination on the side of a negative electrode is provided. By this microbial fuel cell, the velocity of the reaction can be increased to thereby give a high output by retaining a microbe in which an enzyme that catalyzes a redox reaction such as diaphorase has been introduced by genetic recombination on the side of the negative electrode.
    Type: Application
    Filed: February 24, 2012
    Publication date: January 23, 2014
    Inventors: Hideki Sakai, Ryuhei Matsumoto, Shuji Fujita, Yoshio Goto, Yuichi Tokita
  • Publication number: 20130065139
    Abstract: A fuel cell that can have a higher battery capacity without degradation of cathode characteristics is provided. In a biofuel cell that includes one or more battery cell units (1) in which an oxidoreductase exists on the surface of an anode (2) and/or a cathode (3), and the cathode (3) is in contact with both a liquid phase and a gas phase, a selective transmission film (6) that restrains permeation of at least the fuel component is provided between an anode solution unit (4) provided around the anode (2) and a cathode solution unit (5) provided around the cathode (3). The fuel component concentration in the solution in contact with the anode (2) is higher than that in the solution in contact with the cathode (3).
    Type: Application
    Filed: June 2, 2011
    Publication date: March 14, 2013
    Applicant: SONY CORPORATION
    Inventors: Takaaki Nakagawa, Tsunetoshi Samukawa, Hiroki Mita, Taiki Sugiyama, Ryuhei Matsumoto, Hideki Sakai
  • Publication number: 20130011749
    Abstract: A separator formed of a material, which does not transmit liquid, is provided between a cell unit including an electrode on a surface of which an oxidoreductase is present and a fuel storage unit provided adjacent to the cell unit. It is configured such that power generation is started by supply of fuel solution stored in the fuel storage unit to the cell unit by removal of at least a part of the separator.
    Type: Application
    Filed: March 31, 2011
    Publication date: January 10, 2013
    Applicant: SONY CORPORATION
    Inventors: Hiroki Mita, Takaaki Nakagawa, Yuichi Tokita, Hideki Sakai, Ryuhei Matsumoto
  • Patent number: 8338039
    Abstract: A fuel cell is provided. The fuel cell includes at least one of a plant essential oil and a plant essential oil ingredient in an effective amount so as to function as a biological repellent.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: December 25, 2012
    Assignee: Sony Corporation
    Inventors: Yuichi Tokita, Hideki Sakai, Hideyuki Kumita, Ryuhei Matsumoto, Hiroki Mita, Taiki Sugiyama
  • Publication number: 20120264023
    Abstract: A fuel supply body is partially or wholly formed from a material having a biopolymer as a main component and a biocatalyst that metabolically decomposes the biopolymer is contained therein or immobilized thereto. A bio-fuel cell system is constituted of the fuel supply body and a bio-fuel cell including electrodes with an oxidation-reduction enzyme present on a surface thereof to supply fuel and/or the biocatalyst from the fuel supply body to the bio-fuel cell and also to use the fuel supply body itself as the fuel.
    Type: Application
    Filed: March 30, 2012
    Publication date: October 18, 2012
    Applicant: SONY CORPORATION
    Inventors: Hideki Sakai, Hiroki Mita, Shuji Fujita, Ryuhei Matsumoto, Tsunetoshi Samukawa
  • Publication number: 20120000788
    Abstract: An electrolytic method of a fuel capable of suppressing reverse reaction of an enzyme and improving electrolytic rate is provided. In electrolyzing a fuel such as glucose by using an enzyme/electron mediator obtained by immobilizing an enzyme such as gluconate-5-dehydrogenase, alcohol dehydrogenase, and malate dehydrogenase and an electron mediator onto a porous electrode made of a carbon material, electrode reaction is generated only in the enzyme/electron mediator electrode.
    Type: Application
    Filed: March 2, 2010
    Publication date: January 5, 2012
    Applicant: SONY CORPORATION
    Inventors: Ryuhei Matsumoto, Yoshio Goto, Hideki Sakai, Yuichi Tokita
  • Publication number: 20110287328
    Abstract: Disclosed herein is a flexible fuel cell including, one or a plurality of cell sections, and a sealing sheet covering the cell section or sections, wherein the cell section has, at least, a pair of electrode sheets which form an anode and a cathode and at least one of which is accompanied by an oxidoreductase present at a surface thereof, a separator which is disposed between the electrode sheets and which has a proton-permeable membrane, a pair of current collectors which are electrically conductively connected respectively to the electrode sheets with a conductive adhesive, and a fuel reservoir section which is provided at such a position as to make contact with the anode at least and in which a fuel solution containing a fuel component is reserved.
    Type: Application
    Filed: April 15, 2011
    Publication date: November 24, 2011
    Applicant: SONY CORPORATION
    Inventors: Shuji Fujita, Takaaki Nakagawa, Ryuhei Matsumoto, Hideyuki Kumita, Daisuke Yamaguchi
  • Publication number: 20110281183
    Abstract: A fuel cell includes: one or a plurality of cell sections having an electrode with an oxidoreductase present at a surface thereof; and a container in which the cell section or sections are contained; wherein the container is provided with a fuel solution pouring port through which to pour a fuel solution into the cell section or sections, and the fuel solution pouring port is oriented in a fixed direction at least at the time of pouring the fuel solution.
    Type: Application
    Filed: April 13, 2011
    Publication date: November 17, 2011
    Applicant: SONY CORPORATION
    Inventors: Ryuhei Matsumoto, Taiki Sugiyama, Hideyuki Kumita, Hideki Sakai
  • Publication number: 20110281182
    Abstract: Disclosed herein is a fuel analyzing method for a fuel cell, including the steps of: measuring a physical property and/or an electric characteristic of a fuel to be used in a biofuel cell having an electrode with an oxidoreductase present at a surface thereof; and determining the quantity of an effective component which contributes to power generation in the fuel, from the physical property and/or the electric characteristic.
    Type: Application
    Filed: April 13, 2011
    Publication date: November 17, 2011
    Applicant: SONY CORPORATION
    Inventors: Hideki Sakai, Taiki Sugiyama, Hideyuki Kumita, Ryuhei Matsumoto
  • Publication number: 20110236770
    Abstract: Provided is a fuel cell that is high in performance capabilities of initial power generation and in volume power density, and produces a stable power. Between fixing plates, first and second cell portions are provided. The first cell portion includes an anode, a cathode, and a proton conductor, and the second cell portion includes an anode, a cathode, and a proton conductor. To a space formed by gas-liquid separation and permeable films, cathode spacers, and an anode spacer, a fuel solution is filled. The gas-liquid separation and permeable films are disposed between the fixing plate and the cathode, and between the fixing plate and the cathode. The cathode spacers are provided around the cathodes, respectively, and the anode spacer is provided between the anodes.
    Type: Application
    Filed: August 6, 2009
    Publication date: September 29, 2011
    Applicant: SONY CORPORATION
    Inventors: Hideki Sakai, Takaaki Nakagawa, Hideyuki Kumita, Hiroki Mita, Yoshihide Hosoda, Taiki Sugiyama, Ryuhei Matsumoto