Patents by Inventor Toshikazu Shimazu

Toshikazu Shimazu 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).

  • Adjusting apparatus for laser scanning system with acousto-optical element
    Patent number: 4712117
    Abstract: A laser recording apparatus has a laser light source, an acousto-optical element for optically modulating the laser beam from the laser light source, a beam expander scanning optical system for optically scanning a diffracted light emerging from the acousto-optical element toward a recording surface, an f.theta. lens system for imaging the light passed through the scanning optical system on the recording surface, a first plate on which the laser light source and the acousto-optical element are disposed as a first unit, and a second plate on which the beam expander the scanning optical system and the f.theta. lens system are disposed as a second unit.
    Type: Grant
    Filed: October 29, 1985
    Date of Patent: December 8, 1987
    Assignee: Canon Kabushiki Kaisha
    Inventors: Fumiaki Kawaguchi, Toshikazu Shimazu, Kazuhisa Takahashi