Patents by Inventor Takada Shigeyuki

Takada Shigeyuki 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).

  • Process for producing sustained-release preparation by in-water drying
    Patent number: 6287587
    Abstract: The present invention is to provide sustained-release microcapsules which contains high amount of a drug, suppresses initial release and shows stable release, and the production method of which comprises adding a physiologically active substance to biodegradable polymer in an organic solvent containing a fat and oil (in particular, vitamin E) and dispersing and emulsifying the mixture.
    Type: Grant
    Filed: July 9, 1998
    Date of Patent: September 11, 2001
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Takada Shigeyuki, Taira Keiko, Iwasa Susumu
  • Process for producing sustained-release preparation
    Publication number: 20010018075
    Abstract: The present invention is to provide sustained-release microcapsules which contains high amount of a drug, suppresses initial release and shows stable release, and the production method of which comprises adding a physiologically active substance to biodegradable polymer in an organic solvent containing a fat and oil (in particular, vitamin E) and dispersing and emulsifying the mixture.
    Type: Application
    Filed: April 20, 2001
    Publication date: August 30, 2001
    Inventors: Takada Shigeyuki, Taira Keiko, Iwasa Susumu
  • PROCESS FOR PRODUCING SUSTAINED-RELEASE PREPARATION
    Publication number: 20010014339
    Abstract: The present invention is to provide sustained-release microcapsules which contains high amount of a drug, suppresses initial release and shows stable release, and the production method of which comprises adding a physiologically active substance to biodegradable polymer in an organic solvent containing a fat and oil (in particular, vitamin E) and dispersing and emulsifying the mixture.
    Type: Application
    Filed: July 9, 1998
    Publication date: August 16, 2001
    Inventors: TAKADA SHIGEYUKI, TAIRA KEIKO, IWASA SUSUMU