Patents by Inventor Kazuaki Arimoto

Kazuaki Arimoto 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).

  • Sheet feeding apparatus
    Patent number: 5555462
    Abstract: A sheet feeding apparatus detects the position of a sheet (30) during feeding thereof and calculates a deviation of the detected sheet position relative to a reference position to thereby enable accurate color printing. A follower roller (41) for detecting a feeding amount of the sheet is in contact with the sheet which is fed by a sheet feeding roller 1, so that is rotated in accordance with the movement of the sheet. A sensor (43) generates an output signal each time the follower roller (41) rotates a predetermined angle of rotation. In one form of the invention, a timing deviation detector (51) is provided for detecting a deviation in the output timing of an output signal of the sensor relative to a reference value. In another form, a rotation angle deviation detector is provided for detecting a deviation in the rotation angle of the sheet feeding roller relative to a reference value each time the sensor generates an output signal.
    Type: Grant
    Filed: August 24, 1993
    Date of Patent: September 10, 1996
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hiroshi Fukumoto, Naoya Tanaka, Keisuke Oda, Kazuaki Arimoto, Takashi Yoshida, Kazuhiko Higashi, Yasunori Kasahara, Terumi Kuwada
  • Thermal printer with means for reducing color shifts
    Patent number: 5526033
    Abstract: A thermal printer includes a memory for storing a correction for cancelling variations in a paper feed caused by a previously determined uneven paper feed, a first calculator for calculating an uneven paper feed in each of the lines to be printed, a second calculator for calculating a correction corresponding to the uneven paper feed calculated by the first calculator; and a control for controlling the paper feed in each of the lines according to the correction calculated by the second calculator.
    Type: Grant
    Filed: May 5, 1995
    Date of Patent: June 11, 1996
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kazuhiko Higashi, Kiyoshi Takakuwa, Kazuaki Arimoto, Kenichi Naruki, Hiroshi Fukumoto, Terumi Kuwada, Keisuke Oda
  • Thermal printer with means for reducing color shifts
    Patent number: 5483275
    Abstract: A thermal printer includes a memory for storing a correction for cancelling variations in a paper feed caused by a previously determined uneven paper feed, a first calculator for calculating an uneven paper feed in each of the lines to be printed, a second calculator for calculating a correction corresponding to the uneven paper feed calculated by the first calculator; and a control for controlling the paper feed in each of the lines according to the correction calculated by the second calculator.
    Type: Grant
    Filed: September 4, 1992
    Date of Patent: January 9, 1996
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kazuhiko Higashi, Kiyoshi Takakuwa, Kazuaki Arimoto, Kenichi Naruki, Hiroshi Fukumoto, Terumi Kuwada, Keisuke Oda
  • Printer
    Patent number: D336920
    Type: Grant
    Filed: October 18, 1991
    Date of Patent: June 29, 1993
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Midori Yonezawa, Toshiya Yoshida, Masaharu Sawatani, Kazuaki Arimoto