Patents by Inventor Atsuhiro Kawatani

Atsuhiro Kawatani 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 semiconductor device and method for fabricating the same
    Patent number: 6319746
    Abstract: Disclosed is an optical semiconductor device which has: an optical semiconductor element; and a semiconductor element region provided as a peripheral circuit for the optical semiconductor element; wherein the optical semiconductor element is mounted on a semiconductor substrate that includes the semiconductor element region.
    Type: Grant
    Filed: October 20, 2000
    Date of Patent: November 20, 2001
    Assignee: NEC Corporation
    Inventor: Atsuhiro Kawatani
  • Optical semiconductor device and method for fabricating the same
    Patent number: 6184543
    Abstract: Disclosed is an optical semiconductor device which has: an optical semiconductor element; and a semiconductor element region provided as a peripheral circuit for the optical semiconductor element; wherein the optical semiconductor element is mounted on a semiconductor substrate that includes the semiconductor element region.
    Type: Grant
    Filed: April 27, 1998
    Date of Patent: February 6, 2001
    Assignee: NEC Corporation
    Inventor: Atsuhiro Kawatani