Patents by Inventor Keiko Naitou

Keiko Naitou 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).

  • Aqueous drug composition having property of reversible thermosetting gelation
    Patent number: 5624962
    Abstract: An aqueous drug composition having property of reversible thermosetting gelation for ophthalmic, dermatological and body cavitical use which comprises effective amount of drugs used for pharmaceutical therapy or diagnosis, methylcellulose, citric acid and polyethylene glycol and has a pH of 3 to 10, characterized in that said aqueous drug composition is fluid liquid before administration or application and forms gel at a body temperature of a local region immediately after administration or application.
    Type: Grant
    Filed: April 12, 1995
    Date of Patent: April 29, 1997
    Assignee: Wakamoto Pharmaceutical Co., Ltd.
    Inventors: Masanobu Takeuchi, Hiroe Suzuki, Toshie Takahashi, Hiroki Maruyama, Miyako Fukushima, Keiko Naitou, Touru Oguma, Masayoshi Goto