Patents by Inventor Hirofumi Shinozaki

Hirofumi Shinozaki 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 beam survey instrument having a tiltable laser beam axis and tilt detectors
    Patent number: 5636018
    Abstract: According to the present invention, fixed tilt detectors are fixed in planes crossing perpendicularly to each other of shaft center of a laser projector, and tilting tilt detectors are mounted on a plate, which is tiltable with respect to shaft center of the laser projector. The laser projector is leveled in such manner that the fixed tilt detectors indicate horizontal direction or tilting tilt detectors aligned with the fixed tilt detectors indicate horizontal direction, and horizontal reference plane is obtained. The tilting tilt detectors are tilted with the fixed tilt detectors as reference, and the laser projector is leveled so that the tilted tilting tilt detectors indicate horizontal direction, and reference plane tilted at an arbitrary angle is obtained.
    Type: Grant
    Filed: December 18, 1995
    Date of Patent: June 3, 1997
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Satoshi Hirano, Hirofumi Shinozaki
  • Laser beam survey instrument having a tiltable laser beam axis and tilt detectors
    Patent number: 5485266
    Abstract: According to the present invention, fixed tilt detectors are fixed in planes crossing perpendicularly to each other of shaft center of a laser projector, and tilting tilt detectors are mounted on a plate, which is tiltable with respect to shaft center of the laser projector. The laser projector is leveled in such manner that the fixed tilt detectors indicate horizontal direction or tilting tilt detectors aligned with the fixed tilt detectors indicate horizontal direction, and horizontal reference plane is obtained. The tilting tilt detectors are tilted with the fixed tilt detectors as reference, and the laser projector is leveled so that the tilted tilting tilt detectors indicate horizontal direction, and reference plane tilted at an arbitrary angle is obtained.
    Type: Grant
    Filed: May 12, 1993
    Date of Patent: January 16, 1996
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Satoshi Hirano, Hirofumi Shinozaki