Patents by Inventor Michio Kuriyagawa

Michio Kuriyagawa 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).

  • Process for producing oil from organic material-containing sludge
    Patent number: 5681449
    Abstract: An organic material-containing sludge is fluidized and is heat-treated at a high pressure in a reactor disposed underground to obtain an oil having a high calorific value. The heat treatment may be performed using an electrical energy, the terrestrial heat or a reaction heat obtained by oxidative treatment of similer sludge.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: October 28, 1997
    Assignee: Director-General Of Agency Of Industrial Science And Technology
    Inventors: Shinya Yokoyama, Michio Kuriyagawa, Tomoko Ogi, Hideo Kobayashi, Tomoaki Minowa, Seiichi Inoue, Norio Tenma