Patents Assigned to Seiji Arakawa
  • Pharmaceutical compositions useful as cellular immunopotentiator and antitumor agent and process for production thereof
    Patent number: 4315914
    Abstract: Compositions comprising an attenuated strain of vaccinia virus as active ingredient are found to be useful as cellular immunopotentiator and antitumor agent. The attenuated strain of vaccinia virus is obtained by serial passages of vaccinia virus in cell monolayers of chick embryo cells, preferably after the serial passages in mouse kidney cell monolayers.
    Type: Grant
    Filed: April 4, 1980
    Date of Patent: February 16, 1982
    Assignee: Seiji Arakawa
    Inventors: Seiji Arakawa, Tomio Seki, Hidekazu Matsuoka, Hatsunori Harada, Michinari Ninomiya