Patents by Inventor Ichirou Kawamata

Ichirou Kawamata 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).

  • Ointment
    Patent number: 4794107
    Abstract: An oily ointment comprising(a) 0.01 to 0.5% by weight of hydrocortisone butyrate propionate,(b) 2 to 10% by weight of a mixture of propylene glycol and purified water in a weight ratio of from 1:5 to 20:1,(c) 0.1 to 6% by weight of a surface-active agent, and(d) 75 to 97% by weight of a higher paraffinic hydrocarbon.
    Type: Grant
    Filed: September 12, 1986
    Date of Patent: December 27, 1988
    Assignee: Taisho Pharmaceutical Co., Ltd.
    Inventors: Yasuji Takashima, Shigeo Tanaka, Ichirou Kawamata, Hiroshi Murayama
  • Cream
    Patent number: 4794106
    Abstract: An oil-in-water type cream comprising(a) 0.01 to 0.5% by weight of hydrocortisone butyrate proponate,(b) 5 to 50% by weight of a higher paraffinic hydrocarbon,(c) 3 to 15% by weight of a surface-active agent,(d) 30 to 65% by weight of purified water,(e) not more than 20% by weight of a monohydric higher alcohol,(f) not more than 20% by weight of a dihdyric or trihydric alcohol, and(g) a pharmaceutically acceptable acid in an amount required to adjust the pH of the cream to a value in the range of 3.5 to 6.5 when it is diluted with water to 20 times its volume.
    Type: Grant
    Filed: August 28, 1986
    Date of Patent: December 27, 1988
    Assignee: Taisho Pharmaceutical Co., Ltd.
    Inventors: Yasuji Takashima, Shigeo Tanaka, Kenji Tsunoda, Ichirou Kawamata, Hiroshi Murayama