Patents by Inventor Sumio Santa

Sumio Santa 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).

  • Semiconductor laser device having a semiconductor substrate, a laser chip thereon and spaced photo-detecting portions
    Patent number: 4736231
    Abstract: A semiconductor laser device is disclosed herein in which a semiconductor laser chip is mounted on a surface of a semiconductor substrate at one region and a plurality of photo-detecting portions for receiving laser light emitted from the semiconductor laser chip are provided on the surface of the semiconductor substrate at another region separated from the semiconductor laser chip.
    Type: Grant
    Filed: October 16, 1985
    Date of Patent: April 5, 1988
    Assignee: Sony Corporation
    Inventors: Masaaki Ayabe, Sumio Santa, Osamu Matsuda