Patents by Inventor Hideya Katayama

Hideya Katayama 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).

  • Structure of needle-type lens
    Patent number: 5179620
    Abstract: A needle type lens structure comprises, an inner tube having a relay lens inserted therein, an outer tube mounted around an outer periphery of the inner tube in concentric relation thereto with a predetermined gap, and light transmitting device, for guiding illumination light to the distal end of the needle type lens, provided axially between the inner tube and the outer tube.
    Type: Grant
    Filed: June 13, 1991
    Date of Patent: January 12, 1993
    Assignee: Nihon Kohden Corporation
    Inventors: Hidehiro Hosaka, Kohei Ono, Shinji Yamamori, Tadashi Nakayama, Yoji Sato, Hideya Katayama