Patents Assigned to Sheiseido Company, Ltd.
  • Pharmaceutical composition
    Patent number: 4657901
    Abstract: The present invention concerns a composition for topical application which is greatly useful for the treatment of acne. The composition contains (1) a compound of the formula: ##STR1## or its ester or ether, (2) keratolytic agent and (3) pharmaceutically acceptable carrier.
    Type: Grant
    Filed: September 7, 1984
    Date of Patent: April 14, 1987
    Assignees: Sheiseido Company, Ltd., Takeda Chemical Industries, Ltd.
    Inventors: Haruhiko Ueda, Hidekazu Toyoda, Minoru Fukuda