Patents by Inventor Hitoshi Ueki

Hitoshi Ueki 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 forming apparatus
    Patent number: 6185381
    Abstract: A position detecting sensor for detecting that a sheet having come into an openable both-face conveying path for reversing the surfaces of the sheet having an image formed on one surface thereof and conveying the reversed sheet to an image forming portion has arrived at a predetermined re-feeding position, and the position detecting sensor is designed to be capable of detecting also the presence or absence of the occurrence of jam in the both-face conveying path, the mounting and dismounting of a both-face conveying portion and the opening and closing of the both-face conveying path.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: February 6, 2001
    Assignee: Canon Kabushiiki Kaisha
    Inventors: Takashi Nakahara, Hitoshi Ueki, Tomoko Tanaka, Kohei Maeda, Atsushi Wada, Hiroshi Fuse
  • Image forming apparatus and controlling method thereof
    Patent number: 6177977
    Abstract: In a one-face mode, a first sheet discharge portion arranged on an upper face of an apparatus body, or a second sheet discharge portion arranged in the apparatus body so as to be freely opened and closed is opened, and a sheet forming an image on one surface thereof is discharged to this second sheet discharge portion. In a both-face mode, a sheet forming images on both surfaces thereof is conveyed to the first sheet discharge portion through a sheet discharge path formed by closing the second sheet discharge portion.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: January 23, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomoko Tanaka, Takashi Nakahara, Hitoshi Ueki, Kohei Maeda, Atsushi Wada, Hiroshi Fuse