Patents by Inventor Tomio Nagai

Tomio Nagai 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).

  • Image reading apparatus for optically reading image information recorded on sheetlike recording medium
    Patent number: 6989915
    Abstract: An image reading apparatus comprises a correcting mechanism for correcting an output signal from a reading unit in accordance with a reference level. The correcting mechanism includes a reference element for setting the reference level and a drive mechanism for rocking the reference element between a first position in which the reference element is advanced to a reading position and a second position in which the reference element is retreated from the reading position. The drive mechanism includes a rotating member that is continuously rotated in one direction. As the rotating member rotates, the reference element rocks between the first and second positions, thereby executing correction of the output signal before image information recorded on a recording medium is read.
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: January 24, 2006
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takashi Honjo, Tomio Nagai, Toshiyasu Omata, Hideharu Ito
  • Image reading apparatus for optically reading image information recorded on sheetlike recording medium
    Publication number: 20020039208
    Abstract: An image reading apparatus comprises a correcting mechanism for correcting an output signal from a reading unit in accordance with a reference level. The correcting mechanism includes a reference element for setting the reference level and a drive mechanism for rocking the reference element between a first position in which the reference element is advanced to a reading position and a second position in which the reference element is retreated from the reading position. The drive mechanism includes a rotating member that is continuously rotated in one direction. As the rotating member rotates, the reference element rocks between the first and second positions, thereby executing correction of the output signal before image information recorded on a recording medium is read.
    Type: Application
    Filed: September 14, 2001
    Publication date: April 4, 2002
    Inventors: Takashi Honjo, Tomio Nagai, Toshiyasu Omata, Hideharu Ito