Patents by Inventor Keizou Inagaki

Keizou Inagaki 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 gyro and electronic device using the same
    Patent number: 7564563
    Abstract: A laser gyro of the present invention includes laser light excitation means (a semiconductor laser device 100) that excites first and second laser lights propagating in the opposite directions to each other in a circular ring-shaped path (an optical path 40), coupling means (optical waveguides 41 and 42) for superimposing the first and the second laser lights, and a photodetector for observing an interference signal generated by the superimposed first and second laser lights.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: July 21, 2009
    Assignees: Advanced Telecommunications Research Institute International, The Furukawa Electric Co., Ltd.
    Inventors: Noriyuki Yokouchi, Junji Yoshida, Takahisa Harayama, Takehiro Fukushima, Akihiko Kasukawa, Shuichi Tamura, Keizou Inagaki, Morito Matsuoka
  • Laser gyro and electronic device using the same
    Publication number: 20070291273
    Abstract: A laser gyro of the present invention includes laser light excitation means (a semiconductor laser device 100) that excites first and second laser lights propagating in the opposite directions to each other in a circular ring-shaped path (an optical path 40), coupling means (optical waveguides 41 and 42) for superimposing the first and the second laser lights, and a photodetector for observing an interference signal generated by the superimposed first and second laser lights.
    Type: Application
    Filed: May 31, 2007
    Publication date: December 20, 2007
    Inventors: Noriyuki Yokouchi, Junji Yoshida, Takahisa Harayama, Takehiro Fukushima, Akihiko Kasukawa, Shuichi Tamura, Keizou Inagaki, Morito Matsuoka