Patents by Inventor Fujio Iinuma

Fujio Iinuma 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).

  • Certain 2,6-dimethyl-4-(pyrazolo[1,5a]-pyridin-3-yl)1,4-dihydro-pyridine-3,5-dic arboxylate derivatives and compositions containing same
    Patent number: 4923871
    Abstract: This invention relates to new and useful 2,6-dimethyl-4-(pyrazolo[1,5-a]pyridin-3-yl)-1,4-dihydropyridine-3,5-dicar boxylate derivatives of the following formula: ##STR1## and pharmaceutically acceptable salts thereof, having potent promoting activity of some antitumor agents against various kinds of tumor cells including multiple drug resistant tumor cells.
    Type: Grant
    Filed: November 25, 1987
    Date of Patent: May 8, 1990
    Assignees: Kyorin Seiyaku Kabushiki Kaisha, Japanese Foundation for Cancer Research
    Inventors: Makoto Inaba, Hirotaka Shinoda, Fujio Iinuma