Patents by Inventor Futoshi Osada

Futoshi Osada 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).

  • Electric optical distance meter
    Patent number: 7492444
    Abstract: An electric optical distance meter is provided that makes an input power level of a reference light entering a light receiving device via an internal optical path comparable between low and high reflectivity targets.
    Type: Grant
    Filed: January 3, 2008
    Date of Patent: February 17, 2009
    Assignee: Sokkia Co., Ltd.
    Inventor: Futoshi Osada
  • ELECTRIC OPTICAL DISTANCE METER
    Publication number: 20080231830
    Abstract: An electric optical distance meter is provided that makes an input power level of a reference light entering a light receiving device via an internal optical path comparable between low and high reflectivity targets.
    Type: Application
    Filed: January 3, 2008
    Publication date: September 25, 2008
    Applicant: SOKKIA CO., LTD.
    Inventor: Futoshi OSADA
  • Distance measuring device and method thereof
    Patent number: 7336346
    Abstract: A distance measuring device is provided that reduces the time required for a distance measurement without degrading accuracy of the measured value.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: February 26, 2008
    Assignee: Sokkia Co., Ltd.
    Inventors: Akihiro Aoki, Yutaka Nakamura, Koji Sasaki, Toshihiro Uchimura, Futoshi Osada, Hayami Kikawa
  • Distance measuring device and method thereof
    Publication number: 20060285102
    Abstract: A distance measuring device is provided that reduces the time required for a distance measurement without degrading accuracy of the measured value.
    Type: Application
    Filed: May 17, 2006
    Publication date: December 21, 2006
    Applicant: SOKKIA CO., LTD.
    Inventors: Akihiro Aoki, Yutaka Nakamura, Koji Sasaki, Toshihiro Uchimura, Futoshi Osada, Hayami Kikawa