Patents by Inventor Tsuneo Ohkuma

Tsuneo Ohkuma 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 waste water containing organic contaminants utilizing a magnesia adsorbent
    Patent number: 4216084
    Abstract: Magnesia particles obtained by calcining at a temperature of 500.degree.-700.degree. C. show excellent adsorbing properties.
    Type: Grant
    Filed: November 14, 1977
    Date of Patent: August 5, 1980
    Assignees: Agency of Industrial Science & Technology, Hokkaido Soda Co., Ltd.
    Inventors: Yoshikatsu Ikari, Shoichiro Yokoyama, Ryutaro Itaya, Tsuneo Ohkuma
  • Magnesia adsorbent
    Patent number: 4147665
    Abstract: Magnesia particles obtained by calcining at a temperature of 500.degree. - 700.degree. C. show excellent adsorbing properties.
    Type: Grant
    Filed: May 31, 1977
    Date of Patent: April 3, 1979
    Assignees: Agency of Industrial Science & Technology, Hokkaido Soda Co., Ltd.
    Inventors: Yoshikatsu Ikari, Shoichiro Yokoyama, Ryutaro Itaya, Tsuneo Ohkuma