Patents by Inventor Tetsuo Ueyema

Tetsuo Ueyema 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).

  • Reproducing apparatus
    Patent number: 5155715
    Abstract: A reproducing apparatus for reproducing information from recording elements formed with very small pits on a planar surface. The reproducing apparatus includes a probing unit positioned at a very small distance apart from the surface of the recording element and a scanning unit for scanning the probing unit at a very small distance apart from the surface of the recording element. The reproducing apparatus also includes a detecting unit connected to the probing unit and the recording element respectively, for detecting interactions generated between the probing unit and the surface of the recording element and a regeneration unit connected to the detecting unit for inputting a signal output from the detecting unit and for regenerating information by detecting a pattern of the pits by the input signal.
    Type: Grant
    Filed: January 12, 1990
    Date of Patent: October 13, 1992
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tetsuo Ueyema, Hideaki Sato, Kenji Ohta, Shozou Kobayashi