Patents by Inventor Masahiro Someda

Masahiro Someda 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).

  • Paper feed cassette provided with a size detection function
    Patent number: 6769681
    Abstract: A paper feed cassette having a size detection function has a paper stage formed integrally with a rear end restricting plate for restricting the rear end of paper sheets. On the bottom of the paper stage, a plurality of rib-like detection targets are arranged in the paper feed direction. The detection targets are detected by a plurality of detection switches arranged in the paper feed direction in a paper feed portion inside the main body of an image forming apparatus. A discriminator receives the detection signals from the detection switches and thereby recognizes the paper size and the presence/absence of the paper feed cassette.
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: August 3, 2004
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Nobuyuki Nakamura, Masahiro Someda
  • Paper feed cassette provided with a size detection function
    Publication number: 20030047864
    Abstract: A paper feed cassette having a size detection function has a paper stage formed integrally with a rear end restricting plate for restricting the rear end of paper sheets. On the bottom of the paper stage, a plurality of rib-like detection targets are arranged in the paper feed direction. The detection targets are detected by a plurality of detection switches arranged in the paper feed direction in a paper feed portion inside the main body of an image forming apparatus. A discriminator receives the detection signals from the detection switches and thereby recognizes the paper size and the presence/absence of the paper feed cassette.
    Type: Application
    Filed: September 12, 2002
    Publication date: March 13, 2003
    Inventors: Nobuyuki Nakamura, Masahiro Someda