Patents by Inventor Takashi Funahashi

Takashi Funahashi 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
  • Waste-treating material
    Patent number: 5609558
    Abstract: A waste-treating material which comprises cement and at least one reducing metal, effective for stabilizing industrial wastes containing harmful metals like a heavy metal and the like and cyanides. A preferred example of the reducing metal is iron. Additionally the waste-treating material may also contain at least one member selected from a group consisting of a reducing agent, aluminum sulfate, allophane, and bentonite as the auxiliary. The use of this waste-treating material makes it possible to stabilize the hazardous heavy material and the cyanides contained in the industrial wastes, thereby remarkably contributing to a stabilizing treatment of the industrial wastes.
    Type: Grant
    Filed: March 23, 1993
    Date of Patent: March 11, 1997
    Assignees: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha, En-Tech Research Institute, Inc.
    Inventors: Taiichiro Sasae, Tomio Nishida, Masakazu Uekita, Takashi Funahashi
  • Autoantibody adsorbent and apparatus for removing autoantibodies using the same
    Patent number: 5258503
    Abstract: An adsorbent for an autoantibody or immune complex produced by combining an autoantibody with its homologous antigen, which comprises a water-insoluble porous material and a compound having an anionic functional group immobilized onto said material, an apparatus for removing an autoantibody or immune complex thereof using the above-mentioned adsorbent and a method for removing an autoantibody or immune complex thereof from body fluid by passing body fluid through the above-mentioned removing apparatus. According to the present invention, the autoantibody or immune complex thereof can be selectively removed from body fluid without removing useful components in body fluid.
    Type: Grant
    Filed: April 13, 1992
    Date of Patent: November 2, 1993
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Ryuichi Yokohari, Shinichi Aotsuka, Makiko Kinoshita, Takashi Funahashi, Nobutaka Tani