Patents by Inventor Katsuhiro Ise

Katsuhiro Ise 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).

  • Focussing plate
    Patent number: 4071292
    Abstract: A large number of cones such as circular cones or pyramids, or conical recesses are regularly uniformly distributed and formed on a surface of a transparent focussing plate. Each cone or conical recess has a large number of fine irregularities on the sloping surface thereof to thereby diffuse the light passing through the sloping surface.
    Type: Grant
    Filed: August 2, 1976
    Date of Patent: January 31, 1978
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Katsuhiro Ise, Yoshio Kuramoto, Yasuo Yamazaki