Patents by Inventor Yusaku NASU

Yusaku NASU 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: 11618958
    Abstract: A hydrogen-oxygen generation system includes an electrolytic cell configured to generate hydrogen and oxygen by electrolyzing water, and discharge the hydrogen and the oxygen as separate generated gasses. An accumulator includes a water storage chamber configured to store the water, and a gas chamber configured to receive a pressurized gas, and the water storage chamber and the gas chamber are separated from each other by an elastic body membrane. The accumulator is configured to transfer the water stored in the water storage chamber toward the electrolytic cell at a transfer pressure in accordance with a pressure of the pressurized gas in the gas chamber. A water supply unit is configured to supply the water to the water storage chamber, and a gas supply unit is configured to supply the pressurized gas to the gas chamber.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: April 4, 2023
    Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., JAPAN AEROSPACE EXPLORATION AGENCY, KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
    Inventors: Atsuko Homma, Kenichi Nagamoto, Naoki Ogawa, Yuta Nakatsuchi, Hidehiko Tajima, Yusaku Nasu, Yoshitsugu Sone, Hiroshige Matsumoto
  • Publication number: 20210355590
    Abstract: A hydrogen-oxygen generation system includes an electrolytic cell configured to generate hydrogen and oxygen by electrolyzing supplied water, and to discharge the generated hydrogen and oxygen as separate generated gasses. An accumulator includes a water storage chamber in which water is stored, and a gas chamber to which pressurized gas is supplied, and the water storage chamber and the gas chamber are separated from each other by an elastic body membrane. The accumulator is configured to transfer water stored in the water storage chamber toward the electrolytic cell at a transfer pressure in accordance with the pressure of the pressurized gas in the gas chamber. A water supply unit is configured to supply water to the water storage chamber, and a gas supply unit is configured to supply the pressurized gas to the gas chamber.
    Type: Application
    Filed: October 24, 2019
    Publication date: November 18, 2021
    Inventors: Atsuko HOMMA, Kenichi NAGAMOTO, Naoki OGAWA, Yuta NAKATSUCHI, Hidehiko TAJIMA, Yusaku NASU, Yoshitsugu SONE, Hiroshige MATSUMOTO
  • Patent number: 10883181
    Abstract: Provided is a hydrogen generator which is provided with: an electrolytic cell; an anion exchange membrane which divides the electrolytic cell into a cathode chamber and an anode chamber; a cathode chamber water supply part which supplies water to the cathode chamber; an anode chamber water supply part which supplies water to the anode chamber; a cathode that is provided on the cathode chamber-side surface of the anion exchange membrane; an anode that is provided on the anode chamber-side surface of the anion exchange membrane; a cathode feeder that is arranged within the cathode chamber and feeds power to the cathode; an anode feeder that is arranged within the anode chamber and feeds power to the anode; and an active oxygen reduction material that is arranged within the anode chamber and reduces active oxygen generated within the anode chamber.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: January 5, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENVIRONMENTAL & CHEMICAL ENGINEERING CO., LTD.
    Inventors: Hiroyuki Takanami, Yusaku Nasu
  • Publication number: 20180305828
    Abstract: Provided is a hydrogen generator which is provided with: an electrolytic cell; an anion exchange membrane which divides the electrolytic cell into a cathode chamber and an anode chamber; a cathode chamber water supply part which supplies water to the cathode chamber; an anode chamber water supply part which supplies water to the anode chamber; a cathode that is provided on the cathode chamber-side surface of the anion exchange membrane; an anode that is provided on the anode chamber-side surface of the anion exchange membrane; a cathode feeder that is arranged within the cathode chamber and feeds power to the cathode; an anode feeder that is arranged within the anode chamber and feeds power to the anode; and an active oxygen reduction material that is arranged within the anode chamber and reduces active oxygen generated within the anode chamber.
    Type: Application
    Filed: October 17, 2016
    Publication date: October 25, 2018
    Inventors: Hiroyuki TAKANAMI, Yusaku NASU