Patents by Inventor Mituharu Yamada

Mituharu Yamada 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).

  • Stereo image photographing system
    Patent number: 6611664
    Abstract: The present invention provides a stereo image photographing system capable of easily obtaining a stable, highly reliable and accurate stereo image when three-dimensional measurement is carried out by a general camera. A photographing unit includes a camera and an omni-directional prism. By collimating the prism on the photographing unit, a measuring unit measures position data thereof (measured value). A photographing position calculating unit calculates a proper photographing position based on a photographing condition set by a condition setting unit. To realize coincidence or rough coincidence between the data of the position (measured value) of the photographing unit measured by the measuring unit and the data of the photographing position calculated by the photographing position calculating unit, a photographing control unit allows a movement control unit and a driving unit to move the photographing unit, and outputs a timing signal for photographing to the photographing unit and the measuring unit.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: August 26, 2003
    Assignee: Kabushiki Kaisha Topcon
    Inventors: Nobuo Kochi, Mituharu Yamada, Hitoshi Otani
  • Stereo image photographing system
    Publication number: 20010055484
    Abstract: The present invention provides a stereo image photographing system capable of easily obtaining a stable, highly reliable and accurate stereo image when three-dimensional measurement is carried out by a general camera. A photographing unit includes a camera and an omni-directional prism. By collimating the prism on the photographing unit, a measuring unit measures position data thereof (measured value). A photographing position calculating unit calculates a proper photographing position based on a photographing condition set by a condition setting unit. To realize coincidence or rough coincidence between the data of the position (measured value) of the photographing unit measured by the measuring unit and the data of the photographing position calculated by the photographing position calculating unit, a photographing control unit allows a movement control unit and a driving unit to move the photographing unit, and outputs a timing signal for photographing to the photographing unit and the measuring unit.
    Type: Application
    Filed: June 25, 2001
    Publication date: December 27, 2001
    Applicant: KABUSHIKI KAISHA TOPCON
    Inventors: Nobuo Kochi, Mituharu Yamada, Hitoshi Otani