Patents by Inventor Kazunori Togo

Kazunori Togo 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).

  • Sustained-release nifedipine preparation
    Patent number: 4765990
    Abstract: A novel sustained-release nifedipine preparation which comprises the following Composition (A) and Composition (B) in a ratio of 15:85 to 50:50 by weight of nifedipine,Composition (A): a rapid-release preparation containing as an active ingredient nifedipine fine powder having an average particle size of not more than 5.mu.,Composition (B): a delayed-release preparation containing as the active ingredient nifedipine fine powder having an average particle size of not more than 5.mu. and having a surface coating layer comprising a non-toxic, hardly water-soluble substance and an enteric high molecular compound.
    Type: Grant
    Filed: April 21, 1987
    Date of Patent: August 23, 1988
    Assignee: Kanebo, Ltd
    Inventors: Isao Sugimoto, Kazunori Togo, Kozo Sasaki, Atsushi Yamagata, Akira Kuchiki