Patents by Inventor Noboru Ikitsu

Noboru Ikitsu 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).

  • Method for treating wastes
    Patent number: 5810920
    Abstract: To treat waste containing harmful metals such as lead, cadmium, mercury, chromium, copper, nickel, zinc, etc., the waste is mixed with a treating agent containing, as the essential constituent component, solid acid(s) and/or cement and additionally a caking inhibitor, kneaded with water where necessary, then solidified by curing. Harmful metals are thereby stabilized in the thus-solidified cakes and are not released therefrom.
    Type: Grant
    Filed: May 12, 1997
    Date of Patent: September 22, 1998
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Kenji Ueshima, Noboru Ikitsu, Takuji Nomura, Takashi Funahashi, Masakazu Uekita
  • Waste-treating agent
    Patent number: 5769938
    Abstract: To treat waste containing harmful netals such as lead, cadmium, mercury, chromium, copper, nickel, zinc, etc., the waste is mixed with a treating agent containing, as the essential constituent component, solid acid(s) and/or cement and additionally a caking inhibitor, kneaded with water where necessary, then solidified by curing. Harmful metals are thereby stabilized in the thus-solidified cakes and are not released therefrom.
    Type: Grant
    Filed: April 2, 1996
    Date of Patent: June 23, 1998
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Kenji Ueshima, Noboru Ikitsu, Takuji Nomura, Takashi Funahashi, Masakazu Uekita