Patents Assigned to Hisao Yamaguchi
  • Agent for inhibiting proliferation of human malignant tumor cells
    Patent number: 4963358
    Abstract: An agent for inhibiting proliferation of human malignant tumor cells is obtained by culturing the human malignant tumor cells in a medium and removing the malignant tumor cells from the cultured medium.
    Type: Grant
    Filed: December 9, 1988
    Date of Patent: October 16, 1990
    Assignees: Koken Ltd., Tadakatsu Oishi, Youichiro Nagasu, Hisao Yamaguchi
    Inventor: Tomoyuki Tajima
  • Agent for inhibiting proliferation of human malignant tumor cells
    Patent number: 4810495
    Abstract: An agent for inhibiting proliferation of human malignant tumor cells is obtained by culturing the human malignant tumor cells in a medium and removing the malignant tumor cells from the cultured medium.
    Type: Grant
    Filed: October 7, 1985
    Date of Patent: March 7, 1989
    Assignees: Koken Ltd., Tadakatsu Oishi, Youichiro Nagasu, Hisao Yamaguchi
    Inventor: Tomoyuki Tajima