Patents by Inventor Misao Ichikawa

Misao Ichikawa 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: 6561248
    Abstract: A lamination system of the present invention comprises; a film transfer means for transferring a continuous film, a cutting means for cutting the film, a card transfer means for transferring an ID card, a thermocompression bonding means for laminating the film to the ID card, a card straightening means straightening the ID card bent during the thermocompression bonding, in which a spring up suppression means for suppressing a spring up of a trailing edge of the ID card leaving the thermocompression bonding means is provided.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: May 13, 2003
    Assignee: Japan Servo Co., Ltd.
    Inventors: Naotaka Sasaki, Kenji Sugaya, Misao Ichikawa, Kensuke Shoji
  • Publication number: 20020144789
    Abstract: A lamination system of the present invention comprises; a film transfer means for transferring a continuous film, a cutting means for cutting the film, a card transfer means for transferring an ID card, a thermocompression bonding means for laminating the film to the ID card, a card straightening means straightening the ID card bent during the thermocompression bonding, in which a spring up suppression means for suppressing a spring up of a trailing edge of the ID card leaving the thermocompression bonding means is provided.
    Type: Application
    Filed: April 5, 2002
    Publication date: October 10, 2002
    Inventors: Naotaka Sasaki, Kenji Sugaya, Misao Ichikawa, Kensuke Shoji
  • Patent number: 5430373
    Abstract: An absolute encoder wherein tracks are arranged side-by-side on a magnetic drum in the axial direction thereof, and absolute patterns of circulatory random sequence codes are divided and recorded on the tracks, respectively. An additional track for generating sinewaves of two phases in synchronism with the reading of the absolute patterns is provided on the magnetic drum, so that an output can be obained by combining a coarse value of an absolute position obtained from the tracks and a fine value of an absolute position obtained from the additional track. The absolute patterns are detected from the two tracks recorded on the magnetic drum by magnetic resistive elements connected with each other to form circuits each having a three-terminal. Terminals of the magnetic resistive elements are connected through a common line with an electric power source in order to prevent the lines from being crossed.
    Type: Grant
    Filed: January 22, 1993
    Date of Patent: July 4, 1995
    Assignee: Japan Servo Co., Ltd.
    Inventors: Misao Ichikawa, Kazuo Ohnishi, Tokio Sekiguchi