Patents by Inventor Kiyoyuki Kurosawa

Kiyoyuki Kurosawa 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).

  • Mo adsorbent for .sup.99 Mo-.sup.99m Tc generators and manufacturing thereof
    Patent number: 5681974
    Abstract: Mo adsorbent for .sup.99 Mo-.sup.99m Tc generators has a skeleton structure having mainly repeating units represented by the general formula; ##STR1## wherein X is a halogen atom or alkoxide group having one to six carbon atoms, 10% or more of X is halogen, R is an alkylene, polymethylene, or carbon chain having unsaturated bond, repeating unit (D) is bonded to any one of repeating units (A), (B), and (C), the branch structure is controlled by the content of repeating units (A), (B), and (C), the adsorbent is insoluble in water and adsorbs selectively only Mo from an aqueous solution containing Mo, and elutes .sup.99m Tc generated from a radioactive isotope .sup.99 Mo. This Mo adsorbent uses .sup.99 Mo obtained from natural Mo by (n, .gamma.) method, therefore, a generator having the same size as conventional .sup.99m Tc generators is realized.
    Type: Grant
    Filed: May 20, 1996
    Date of Patent: October 28, 1997
    Assignees: Kaken Co., Ltd., Japan Atomic Energy Research Institute
    Inventors: Yoshio Hasegawa, Mizuka Nishino, Taketoshi Takeuchi, Katsuyoshi Tatenuma, Masakazu Tanase, Kiyoyuki Kurosawa