Patents by Inventor Katsumi Hamaguchi

Katsumi Hamaguchi 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).

  • Membrane electrode assembly and electrolyzed water production device using the same
    Patent number: 10227242
    Abstract: A membrane electrode assembly includes a rod-shaped or tubular anode, an anode terminal connected to the anode, a cathode disposed at a position apart from the anode so as to face the anode, and a membrane that separates the anode from the cathode. The cathode includes a line-shaped or strip-shaped cathode-supporting portion and a cathode claw that extends to the left, right, or both left and right from the cathode-supporting portion and that is curved along an outer periphery of the anode. The cathode-supporting portion and the cathode claw form an anode-holding portion of the cathode. The membrane includes a membrane strip, and the membrane strip is disposed on the cathode claw to be in contact with the cathode claw so that the anode is held by the anode-holding portion of the cathode with the membrane strip therebetween.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: March 12, 2019
    Assignee: INDUSTRIE DE NORA S.P.A.
    Inventors: Katsumi Hamaguchi, Takaaki Nakai, Takayuki Yamamoto
  • MEMBRANE ELECTRODE ASSEMBLY AND ELECTROLYZED WATER PRODUCTION DEVICE USING THE SAME
    Publication number: 20160101997
    Abstract: A membrane electrode assembly includes a rod-shaped or tubular anode, an anode terminal connected to the anode, a cathode disposed at a position apart from the anode so as to face the anode, and a membrane that separates the anode from the cathode. The cathode includes a line-shaped or strip-shaped cathode-supporting portion and a cathode claw that extends to the left, right, or both left and right from the cathode-supporting portion and that is curved along an outer periphery of the anode. The cathode-supporting portion and the cathode claw form an anode-holding portion of the cathode. The membrane includes a membrane strip, and the membrane strip is disposed on the cathode claw to be in contact with the cathode claw so that the anode is held by the anode-holding portion of the cathode with the membrane strip therebetween.
    Type: Application
    Filed: June 4, 2014
    Publication date: April 14, 2016
    Inventors: Katsumi HAMAGUCHI, Takaaki NAKAI, Takayuki YAMAMOTO
  • AN ELECTROLYZED WATER GENERATING METHOD AND A GENERATOR
    Publication number: 20150329385
    Abstract: Subject: An electrolyzed water generating method and a generator to produce both acidic electrolyzed water free from alkaline-metal chloride (19) and alkaline electrolyzed water free from alkaline-metal chloride (9) by electrolyzing aqueous solution (7) with dissolved alkaline-metal chloride (11).
    Type: Application
    Filed: January 28, 2014
    Publication date: November 19, 2015
    Inventors: Masaharu UNO, Katsumi HAMAGUCHI
  • Membrane-electrode assembly, electrolytic unit using the same, electrolytic water ejecting apparatus, and method of sterilization
    Patent number: 7964068
    Abstract: The present invention provides: a membrane-electrode assembly having a first electrode having a shape of a rod-form or a cylindrical-form, a strip-form diaphragm covering the periphery of the first electrode, and a second electrode disposed on a surface of the strip-form diaphragm; an electrolytic unit containing the membrane-electrode assembly; an electrolytic water ejecting apparatus containing the electrolytic unit; and a method of sterilization using the membrane-electrode assembly.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: June 21, 2011
    Assignees: Permelec Electrode Ltd., Institute of National Colleges of Technology, Japan
    Inventors: Noriyuki Kitaori, Kota Sekido, Genzo Yamane, Katsumi Hamaguchi, Hozumi Tanaka, Yoshinori Nishiki, Tsuneto Furuta
  • MEMBRANE-ELECTRODE ASSEMBLY, ELECTROLYTIC UNIT USING THE SAME, ELECTROLYTIC WATER EJECTING APPARATUS, AND METHOD OF STERILIZATION
    Publication number: 20080067078
    Abstract: The present invention provides: a membrane-electrode assembly having a first electrode having a shape of a rod-form or a cylindrical-form, a strip-form diaphragm covering the periphery of the first electrode, and a second electrode disposed on a surface of the strip-form diaphragm; an electrolytic unit containing the membrane-electrode assembly; an electrolytic water ejecting apparatus containing the electrolytic unit; and a method of sterilization using the membrane-electrode assembly.
    Type: Application
    Filed: September 20, 2007
    Publication date: March 20, 2008
    Applicants: PERMELEC ELECTRODE LTD., INSTITUTE OF NATIONAL COLLEGES OF TECHNOLOGY JAPAN
    Inventors: Noriyuki KITAORI, Kota SEKIDO, Genzo YAMANE, Katsumi HAMAGUCHI, Hozumi TANAKA, Yoshinori NISHIKI, Tsuneto FURUTA
  • Electrolytic cell employing gas diffusion electrode
    Patent number: 6117286
    Abstract: A zero-gap type electrolytic cell 11 characterized as having a hydrophilic liquid-permeable material 16 interposed between an ion-exchange membrane 12 and a gas diffusion cathode 17. The reaction product passes through the liquid-permeable material and disperses toward edges of the liquid-permeable material before being withdrawn. Hence, the withdrawal direction for the target reaction product is not opposite the feed direction for the reactant gas.
    Type: Grant
    Filed: October 16, 1998
    Date of Patent: September 12, 2000
    Assignee: Permelec Electrode Ltd.
    Inventors: Takayuki Shimamune, Koichi Aoki, Masashi Tanaka, Katsumi Hamaguchi, Yoshinori Nishiki