Patents by Inventor Hitoshi Kumata

Hitoshi Kumata 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 of disposing of combustible materials
    Patent number: 6745707
    Abstract: A method of disposing of combustible materials. The method includes the steps of: providing a heating space; providing a first source to generate heat to a first predetermined level at a first location in the heating space sufficient to reconstitute the combustible materials to a molten slag at the first location and so that heat generated by the first source elevates the temperature at a second location within the heating space to a second predetermined heat level that is below the predetermined heat level and high enough to cause combustion of the combustible materials; directing combustible materials to the second location at which the combustible materials are combusted to produce ash; and causing the ash to be directed to the first location to be reconstituted as molten slag.
    Type: Grant
    Filed: January 6, 2003
    Date of Patent: June 8, 2004
    Assignees: Tokyo Electric Power Company of Tokyo, Tokyo Densetsu Services Co. of Japan, Prometron Technics Corporation of Tokyo
    Inventors: Ichiro Suzuki, Shinichi Nakazawa, Kenji Katagiri, Hitoshi Kumata, Hirokuni Matsuda, Tokuyoshi Kawai, Shuji Tada
  • Method of disposing of combustible materials
    Publication number: 20030172857
    Abstract: A method of disposing of combustible materials. The method includes the steps of: providing a heating space; providing a first source to generate heat to a first predetermined level at a first location in the heating space sufficient to reconstitute the combustible materials to a molten slag at the first location and so that heat generated by the first source elevates the temperature at a second location within the heating space to a second predetermined heat level that is below the predetermined heat level and high enough to cause combustion of the combustible materials; directing combustible materials to the second location at which the combustible materials are combusted to produce ash; and causing the ash to be directed to the first location to be reconstituted as molten slag.
    Type: Application
    Filed: January 6, 2003
    Publication date: September 18, 2003
    Inventors: Ichiro Suzuki, Shinichi Nakazawa, Kenji Katagiri, Hitoshi Kumata, Hirokuni Matsuda, Tokuyoshi Kawai, Shuji Tada
  • Apparatus and method for disposing of dam dirt
    Patent number: 6520098
    Abstract: A method of disposing of combustible materials. The method includes the steps of: providing a heating space; providing a first source to generate heat to a first predetermined level at a first location in the heating space sufficient to reconstitute the combustible materials to a molten slag at the first location and so that heat generated by the first source elevates the temperature at a second location within the heating space to a second predetermined heat level that is below the predetermined heat level and high enough to cause combustion of the combustible materials; directing combustible materials to the second location at which the combustible materials are combusted to produce ash; and causing the ash to be directed to the first location to be reconstituted as molten slag.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: February 18, 2003
    Assignees: Tokyo Electric Power Company, Tokyo Densetsu Services, Prometron Technics Corp.
    Inventors: Ichiro Suzuki, Shinichi Nakazawa, Kenji Katagiri, Hitoshi Kumata, Hirokuni Matsuda, Tokuyoshi Kawai, Shuji Tada