Patents by Inventor Ryozo Motoki

Ryozo Motoki 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 removing radioactive europium from solutions of radioactive gadolinium
    Patent number: 5049284
    Abstract: The improved method and apparatus are capable of efficient removal of radioactive europium from solutions of radioactive gadolinium in a simple way. A mixture of a zinc and a graphite powder is packed into a column and both a conditioning solution corresponding to a liquid electrolyte and a sample solution containing radioactive gadolinium and europium are allowed to pass through the column.
    Type: Grant
    Filed: October 2, 1989
    Date of Patent: September 17, 1991
    Assignee: Japan Atomic Energy Research Institute
    Inventors: Ryozo Motoki, Kusuo Terunuma
  • Method of processing radioactive liquid wastes containing radioactive ruthenium
    Patent number: 4622176
    Abstract: A method of processing radioactive liquid wastes containing radioactive ruthenium by passing said wastes through a column packed with an adsorbent comprising a mixture of activated carbon with zinc and palladium powders is herein disclosed.
    Type: Grant
    Filed: December 10, 1984
    Date of Patent: November 11, 1986
    Assignees: Japan Atomic Energy Research Institute, Mitsui Mining & Smelting Co.
    Inventors: Ryozo Motoki, Shoji Motoishi, Mishiroku Izumo, Katsuyuki Onoma, Toshikazu Sato