Patents by Inventor Hirotoshi Kakegawa

Hirotoshi Kakegawa 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: 6565079
    Abstract: The present invention relates to a document feeder, document feed method, and image capture device. The document feeder includes a sheet separation mechanism that restricts the number of sheets to be fed by a pull-in portion. The sheet separation mechanism includes a first separation portion that contacts the sheet, and moves so as to feed the sheet, a second separation portion, located opposite to the first separation portion, which defines a part of a sheet feed path between the second and first separation portions, and moves so as to allow the sheet to be fed, and a brake portion that variably applies to the second separation portion a load allowing the second separation portion to move.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: May 20, 2003
    Assignee: PFU Limited
    Inventors: Hirotoshi Kakegawa, Tamio Amagai, Noriaki Yamazaki, Yoshio Tabata
  • Patent number: 6345817
    Abstract: A sheet separator to separate sheets of documents supplied as a stack into a single sheet. The sheet separator has a first separating mechanism and a second separating mechanism, each of which has a separating roller. The second separating mechanism is provided at a position downstream from the first separating mechanism. The peripheral velocity of the second separating roller may be set lower than a peripheral velocity of the first separating roller.
    Type: Grant
    Filed: March 21, 2000
    Date of Patent: February 12, 2002
    Assignee: Fujitsu Limited
    Inventors: Hirotoshi Kakegawa, Norio Kanemitsu
  • Patent number: 5956161
    Abstract: An improved image reading apparatus suitable for use with an image scanner which can read a large number of paper sheets successively and rapidly and cope with various paper sizes from a small size to a large size. The image reading apparatus includes a paper supply mechanism, a paper transport mechanism, an optical image reading mechanism for optically reading information on a paper sheet being transported by the paper transport mechanism, and a paper stacking mechanism.
    Type: Grant
    Filed: October 31, 1997
    Date of Patent: September 21, 1999
    Assignee: Fujitsu Limited
    Inventors: Yoshihiro Takashimizu, Masahiro Yoshida, Toshiaki Anzai, Hirotoshi Kakegawa, Noriaki Yamazaki, Toshio Saito, Hiroyuki Maruyama, Fumiaki Harada, Seigo Umeda, Yoshio Tabata