Patents by Inventor Kusuo Terunuma

Kusuo Terunuma 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