Patents Assigned to Teikoku Seiyaki Co., Ltd.
  • Plaster containing 4-biphenylacetic acid
    Patent number: 7094421
    Abstract: It is provided the plaster of anti-inflammatory and analgesic, improving the sustained releasing of 4-biphenylacetic acid from the base adhesive material and low skin irritation, by using more than two kinds of resolvent for 4-biphenylacetic acid having low solubility in solvents. More specifically, it is provided plasters essentially containing 5–50% by weight of styrene-isoprene-styrene block copolymer, 0.05–20% by weight of N-methyl-2-pyrrolidone, 0.1–20% by weight of polyethylene glycol and 0.1–20% by weight of 4-biphenylacetic acid.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: August 22, 2006
    Assignee: Teikoku Seiyaki Co., Ltd.
    Inventors: Mitsuji Akazawa, Katsuyuki Inoo, Masahiro Yamaji
  • Adhesive skin patch
    Patent number: D692151
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: October 22, 2013
    Assignee: Teikoku Seiyaki Co., Ltd.
    Inventor: Katsuyuki Inoo