Patents by Inventor Koichiro Fujiyasu

Koichiro Fujiyasu 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 activating thiourea dioxide
    Patent number: 4610802
    Abstract: Activating thiourea dioxide is characterized by incorporating in the thiourea dioxide a substance which dissolves in water or an acidic aqueous solution and produces hydrogen.
    Type: Grant
    Filed: October 12, 1984
    Date of Patent: September 9, 1986
    Assignee: Tokai Denka Kogyo Kabushiki Kaisha
    Inventors: Koichiro Fujiyasu, Shigeki Yoneyama, Haruhiko Ito