Patents by Inventor Nanase ISHIKAWA

Nanase ISHIKAWA 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).

  • Alkaline water electrolysis device
    Patent number: 11267728
    Abstract: Provided is an alkaline water electrolyzer in which leakage of aqueous alkali solutions is prevented. The alkaline water electrolyzer 10 includes an anode chamber frame 11 defining an anode chamber 12; a cathode chamber frame 17 defining a cathode chamber 18; a porous diaphragm 16 disposed between the anode and cathode chamber frames 11 and 17 and partitioning the anode and cathode chambers 12 and 18; an anode gasket 15 disposed on the anode chamber frame 11; and a cathode gasket 21 disposed on the cathode chamber frame 17, wherein when the anode and cathode chamber frames 11 and 17 are fastened, the porous diaphragm 16 is held between the anode and cathode chamber frames 11 and 17 via the anode and cathode gaskets 15 and 21 and the anode and cathode gaskets 15 and 21 are in contact with each other around the peripheral edge of the porous diaphragm 16 by compressing the anode and cathode gaskets 15 and 21.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: March 8, 2022
    Assignees: THYSSENKRUPP UHDE CHLORINE ENGINEERS (JAPAN) LTD., KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Takehiro Oiwa, Koji Kawanishi, Kenichiro Igashira, Yuji Kamei, Nanase Ishikawa, Akiyoshi Manabe
  • ALKALINE WATER ELECTROLYSIS DEVICE
    Publication number: 20200039848
    Abstract: Provided is an alkaline water electrolyzer in which leakage of aqueous alkali solutions is prevented. The alkaline water electrolyzer 10 includes an anode chamber frame 11 defining an anode chamber 12; a cathode chamber frame 17 defining a cathode chamber 18; a porous diaphragm 16 disposed between the anode and cathode chamber frames 11 and 17 and partitioning the anode and cathode chambers 12 and 18; an anode gasket 15 disposed on the anode chamber frame 11; and a cathode gasket 21 disposed on the cathode chamber frame 17, wherein when the anode and cathode chamber frames 11 and 17 are fastened, the porous diaphragm 16 is held between the anode and cathode chamber frames 11 and 17 via the anode and cathode gaskets 15 and 21 and the anode and cathode gaskets 15 and 21 are in contact with each other around the peripheral edge of the porous diaphragm 16 by compressing the anode and cathode gaskets 15 and 21.
    Type: Application
    Filed: March 28, 2018
    Publication date: February 6, 2020
    Applicants: thyssenkrupp Uhde Chlorine Engineers (Japan) Ltd., KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Takehiro OIWA, Koji KAWANISHI, Kenichiro IGASHIRA, Yuji KAMEI, Nanase ISHIKAWA, Akiyoshi MANABE