Patents by Inventor Tetuya Uno

Tetuya Uno 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).

  • Patent number: 6043869
    Abstract: A device for measuring the speed of an object. The device includes a spatial filter scheme to provide quick-response photodetectors and an efficient use of light. The device projects light onto the object by a light source 1, and the light reflected by the object is received by a lens. This light passes through aperture stop 4 and strikes prism array 7, where it is split alternately into two paths at a fixed pitch with respect to the optical axis. The two split beams are received respectively by two photodetectors. The speed of the object moving relative to the measuring device can be calculated based on the data collected by photodetectors.
    Type: Grant
    Filed: September 16, 1996
    Date of Patent: March 28, 2000
    Assignee: OMRON Corporation
    Inventors: Tetuya Uno, Junichi Takagi, Yasunobu Sakai
  • Patent number: 5557395
    Abstract: A device for measuring the speed of an object. The device includes a spatial filter scheme to provide quick-response photodetectors and an efficient use of light. The device projects light onto the object by a light source 1, and the light reflected by the object is received by a lens. This light passes through aperture stop 4 and strikes prism array 7, where it is split alternately into two paths at a fixed pitch with respect to the optical axis. The two split beams are received respectively by two photodetectors. The speed of the object moving relative to the measuring device can be calculated based on the data collected by photodetectors.
    Type: Grant
    Filed: October 27, 1993
    Date of Patent: September 17, 1996
    Assignee: Omron Corporation
    Inventors: Tetuya Uno, Junichi Takagi, Yasunobu Sakai