Patents by Inventor Yoshiko Yoshino

Yoshiko Yoshino 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).

  • External preparation
    Patent number: 6627217
    Abstract: The present invention is a preparation for external use which contains a basic drug, polyvinyl pyrrolidone and a carboxyvinyl polymer and which has a pH of 4 to 9. The present invention has made it possible to provide a new preparation for external use which enables a drug to show a long-lasting action even at a damaged site of the skin.
    Type: Grant
    Filed: June 27, 2001
    Date of Patent: September 30, 2003
    Assignee: Taisho Pharmaceutical Co., Ltd.
    Inventors: Yasuyuki Suzuki, Yoshiko Yoshino
  • Transdermal absorption preparation
    Patent number: 6355266
    Abstract: A transdermal absorption preparation containing &agr;-form crystals of indomethacin in a vehicle. The present invention aims to provide an indomethacin-containing transdermal absorption preparation increased in the percutaneous absorption of indomethacin from the preparation, and improved in the stability of indomethacin in the preparation.
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: March 12, 2002
    Assignee: Taisho Pharmaceutical Co., Ltd.
    Inventors: Tomohiro Ohtsuki, Chikako Kiuchi, Yoshiko Yoshino