Patents by Inventor Tamoyuki Oki

Tamoyuki Oki 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).

  • Laser diode
    Publication number: 20080117947
    Abstract: The present invention provides a laser diode realizing improved light detection precision. The laser diode includes a stack structure in which a first semiconductor layer of a first conduction type, an active layer, and a second semiconductor layer of a second conduction type are included in this order; a photodetection layer; and a plurality of light absorption layers provided on the corresponding position of antinodes or nodes of standing waves of light output from the active layer.
    Type: Application
    Filed: October 31, 2007
    Publication date: May 22, 2008
    Applicant: Sony Corporation
    Inventors: Yuji Masui, Takahiro Arakida, Yoshinori Yamauchi, Norihiko Yamaguchi, Rintaro Koda, Tamoyuki Oki