Patents Assigned to Toyama Chemical Company, Ltd.
  • 4H-1-benzopyran-4-one derivative or its salt, process for producing the same and pharmaceutical composition comprising the same as active ingredient
    Patent number: 4954518
    Abstract: This invention relates to a 4H-1-benzopyran-4-one derivative represented by the formula: ##STR1## or a salt thereof, a process for producing the same and a pharmaceutical composition comprising the same as active ingredient.
    Type: Grant
    Filed: October 7, 1988
    Date of Patent: September 4, 1990
    Assignee: Toyama Chemical Company, Ltd.
    Inventors: Shuntaro Takano, Chosaku Yoshida, Takihiro Inaba, Keiichi Tanaka, Ryuko Takeno, Hideyoshi Nagaki, Tomoya Shimotori, Shinji Makino
  • Pharmaceutical composition comprising extract from poison pouch contents of bee
    Patent number: 4444753
    Abstract: A composition comprising a component obtained by deproteinizing an extract from the poison pouch contents of bee has an immunostimulating activity, a carcinostatic activity, an effect of enhancing the antibacterial activity of an antibacterial substance and an effect of enhancing the carcinostatic activity of a carcinostatic substance. This invention is directed to a carcinostatic, immunostimulating and antibacterial agent comprising said composition.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: April 24, 1984
    Assignee: Toyama Chemical Company, Ltd.
    Inventors: Isamu Saikawa, Takashi Yasuda, Shohachi Murakami, Toyoo Maeda, Akira Yotsuji, Masahiro Takahata, Hisatsugu Tsuda, Hidetada Mikami, Hiroshi Sakai, Toshinori Ohashi
  • Pharmaceutical composition comprising extract from poison pouch contents of bee useful for treating decreased immunity
    Patent number: 4370316
    Abstract: A method for treating a host mammal having a decreased immunity, comprising administering to said host mammal an immunostimulating effective amount of the deproteinized extract from the poison pouch contents of bee B-T, is disclosed.
    Type: Grant
    Filed: May 7, 1980
    Date of Patent: January 25, 1983
    Assignee: Toyama Chemical Company, Ltd.
    Inventors: Isamu Saikawa, Takashi Yasuda, Shohachi Murakami, Toyoo Maeda, Akira Yotsuji, Masahiro Takahata, Hisatsugu Tsuda, Hidetada Mikami, Hiroshi Sakai, Toshinori Ohashi