Patents by Inventor Hirofumi Nishikiuchi

Hirofumi Nishikiuchi 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).

  • Tandem scanning optical device
    Patent number: 6710905
    Abstract: Deflection of multiple laser beams, scanning of the photoreceptors by such beams in the main scanning direction and light path separation in the sub scanning direction are carried out by having multiple laser beams strike the same deflecting reflective surface of the deflector at different angles in the sub scanning direction. In order to adjust the incident angles in the sub scanning direction, the angles of the laser beams are simultaneously changed. In order to adjust the incident positions in the sub scanning direction, the laser beams are simultaneously moved in a parallel fashion by a light source adjustment unit.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: March 23, 2004
    Assignee: Minolta Co., Ltd.
    Inventors: Hirofumi Nishikiuchi, Kenji Takeshita, Tsukasa Sugiura, Hajime Taniguchi, Hidenari Tachibe
  • Tandem scanning optical device
    Publication number: 20030137710
    Abstract: Deflection of multiple laser beams, scanning of the photoreceptors by such beams in the main scanning direction and light path separation in the sub scanning direction are carried out by having multiple laser beams strike the same deflecting reflective surface of the deflector at different angles in the sub scanning direction. In order to adjust the incident angles in the sub scanning direction, the angles of the laser beams are simultaneously changed. In order to adjust the incident positions in the sub scanning direction, the laser beams are simultaneously moved in a parallel fashion by a light source adjustment unit.
    Type: Application
    Filed: January 21, 2003
    Publication date: July 24, 2003
    Inventors: Hirofumi Nishikiuchi, Kenji Takeshita, Tsukasa Sugiura, Hajime Taniguchi, Hidenari Tachibe