Patents by Inventor Shokichi Yamagishi

Shokichi Yamagishi 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).

  • Method of coating pharmaceutical solid dosage forms
    Patent number: 4001390
    Abstract: Pharmaceutical solid dosage forms are covered with three successive layers of coating, consisting alternately of an undercoat composed substantially of a polymeric substance, a secondary coat composed substantially of a polymeric substance and a pigment, and a finish coat composed substantially of a polymeric substance. Application of these coatings produce economical advantages both in time and labor, and the surfaces of the coated dosage forms are smooth and glossy, and have no cracking.
    Type: Grant
    Filed: April 1, 1975
    Date of Patent: January 4, 1977
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Shigeru Ohno, Fujio Sekigawa, Shokichi Yamagishi