Patents by Inventor Yuiti Sugiyama

Yuiti Sugiyama 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).

  • Optical tomographic imaging equipment having a light source unit for generating a light wave having a predetermined coherence length
    Patent number: 5579112
    Abstract: An optical tomographic imaging equipment including a light-receiving unit having a plurality of light-receiving elements, and an electronic focusing control unit. The electronic focusing control unit provides a control such that a plurality of light-receiving signals, derived by light-receiving an interference wave involved in superposition of the reflected light and the reference light using the plurality of light-receiving elements of the light-receiving unit, are relatively delayed and added to each other so as to issue resultant light-receiving signals involved in emphasis of information of a predetermined point on a light path of the object light within the subject.
    Type: Grant
    Filed: October 27, 1994
    Date of Patent: November 26, 1996
    Assignee: Biophotonics Information Laboratories Ltd.
    Inventors: Yuiti Sugiyama, Junji Miyazaki