Patents by Inventor Ryutaro Shin

Ryutaro Shin 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).

  • Distance measuring apparatus
    Patent number: 5668626
    Abstract: A distance measuring apparatus includes: a light projecting unit including a light source and a light projecting lens; a distance measuring first photosensor unit disposed at a predetermined baseline length from the light projecting unit and including a first photosensor and a first light receiving lens; and a second photosensor unit disposed in the vicinity of the light projecting unit in a direction perpendicular to the baseline and including a second photosensor and a second light receiving lens. An output of the second photosensor unit is used for correcting an output of the first photosensor unit.
    Type: Grant
    Filed: June 15, 1995
    Date of Patent: September 16, 1997
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryutaro Shin, Ryoichi Suzuki