Patents by Inventor Kouji Kamiyama

Kouji Kamiyama 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).

  • Magnetic tape guide means
    Patent number: 4389010
    Abstract: A magnetic tape guide means is disclosed having formed on the surface thereof for contact with a moving tape substantially hemispherical projections having diameters or major axis of from 0.5 to 5 .mu.m and a distribution density of from 10,000 to 100,000 projections per square millimeter.
    Type: Grant
    Filed: March 10, 1981
    Date of Patent: June 21, 1983
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kengo Oishi, Masayoshi Moriwaki, Osamu Suzuki, Kouji Kamiyama