Patents by Inventor Omura Tomoyuki

Omura Tomoyuki 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 tablet
    Patent number: 5593694
    Abstract: A sustained release tablet comprising a base tablet comprising a water-swellable gelling agent and a pharmaceutically active ingredient dispersed homogeneously in said gelling agent, said base tablet being coated with a film coating composition prepared by dissolving one or two members selected from the group consisting of ethylcellulose and acetylcellulose in an organic solvent. The tablet is capable of zero order dissolution of both water-soluble drugs and slightly water-soluble drugs, and can be produced economically with ease.
    Type: Grant
    Filed: June 24, 1994
    Date of Patent: January 14, 1997
    Assignee: Yoshitomi Pharmaceutical Industries, Ltd.
    Inventors: Tomohiro Hayashida, Kadoya Kikumaru, Omura Tomoyuki