Patents by Inventor Katsuhiko Ohyama

Katsuhiko Ohyama 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).

  • Stable immunogen composition for oral administration
    Patent number: 5176909
    Abstract: A stable immunogen composition for oral administration which includes a dried spherical form comprised of an immunogen capable of immunizing human or animals and a gelatin having an average molecular weight of 80,000-120,000 and jelly strength of more than 150 (Bloom, g, 6.2/3%), and is enteric.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: January 5, 1993
    Assignee: The Nisshin Oil Mills, Ltd.
    Inventors: Kuniaki Nerome, Kuniharu Seki, Katsuhiko Ohyama