Patents by Inventor Hiroki Kinoshita

Hiroki Kinoshita 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: 6038353
    Abstract: A light beam scanning optical apparatus which writes two lines at one scan on a photosensitive member with light beams emitted from laser diodes. The light beams are combined at a beam splitter. The beam splitter is supported on a surface including a semitransparent layer by total three balls provided on a base block.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: March 14, 2000
    Assignee: Minolta Co., Ltd.
    Inventors: Toshio Naiki, Kenji Takeshita, Hidenari Tachibe, Hiroki Kinoshita
  • Patent number: 5600489
    Abstract: A copying zoom lens system is provided with from the original side a first lens unit of negative refractive power including at least one negative lens element, a second lens unit of positive refractive power including at least four lens elements, and a third lens unit of negative refractive power including at least one negative lens element. The second lens unit is asymmetric with respect to the center of the lens units of the lens system. During zooming, the projection magnification is varied with the conjugate distance being maintained constant by varying the distance between the first and second lens units and the distance between the second and third lens units and by moving the entire lens system. The axial distances among the lens units are defined by predetermined conditions.
    Type: Grant
    Filed: December 16, 1994
    Date of Patent: February 4, 1997
    Assignee: Minolta Co., Ltd.
    Inventors: Toshihiko Ueda, Hiroki Kinoshita