Patents by Inventor Chikara Imaizumi

Chikara Imaizumi 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 and rotary body detection device
    Patent number: 6834174
    Abstract: An image forming apparatus includes an endless belt for carrying an image or for conveying an image forming medium, a driving roller connecting across the endless belt and driving the endless belt, a driven roller connecting across the endless belt and being driven in correspondence to movement of the endless belt, an image former for forming an image to the endless belt or to a medium conveyed by the endless belt, a speed detector for detecting moving speed of the endless belt and a speed controller for controlling the moving speed of the endless belt based on a detection result from the speed detector. The speed detector generates one pulse per rotation of the driven roller being driven in correspondence to the endless belt.
    Type: Grant
    Filed: February 25, 2002
    Date of Patent: December 21, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Chikara Imaizumi, Kenji Watanabe, Seiji Obata, Takayuki Miyamoto
  • Image forming apparatus and rotary body detection device
    Publication number: 20030002887
    Abstract: The present invention relates to an image forming apparatus comprising an endless belt for carrying an image or for conveying an image forming medium, a driving roller connecting across the endless belt and driving the endless belt, a driven roller connecting across the endless belt and being driven in correspondence to movement of the endless belt, an image forming means for forming an image to the endless belt or to a medium conveyed by the endless belt, a speed detection means for detecting moving speed of the endless belt and a speed control means for controlling the moving speed of the endless belt based on a detection result from the speed detection means. The speed detection means generates one pulse per rotation of the driven roller being driven in correspondence to the endless belt.
    Type: Application
    Filed: February 25, 2002
    Publication date: January 2, 2003
    Applicant: Canon Kabushiki Kaisha
    Inventors: Chikara Imaizumi, Kenji Watanabe, Seiji Obata, Takayuki Miyamoto