Patents by Inventor Tamio Nanya

Tamio Nanya 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).

  • Long-lasting multi-layered film preparation
    Patent number: 4552751
    Abstract: The present invention provides multi-layered film preparations which comprise one or more water soluble polymer bases, one or more water insoluble polymer bases, one or more plasticizers and one or more prostaglandins, and optionally contain one or more organic acids, and they are composed of at least two drug release controlling layers and one or more drug storing layers. The multi-layered film preparations of the present invention are characterized by that the prostaglandin(s) containing therein exhibit the desired long-lasting release patterns at the concentration required for therapeutic purpose.
    Type: Grant
    Filed: October 19, 1981
    Date of Patent: November 12, 1985
    Assignee: Ono Pharmaceutical Co., Ltd.
    Inventors: Kohji Inaba, Seiei Sasatani, Tatsushi Koide, Tamio Nanya