Patents by Inventor Tomohide Katsumata

Tomohide Katsumata 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 formation apparatus
    Patent number: 6985677
    Abstract: The image formation apparatus has a plurality of cooling fans inside the main body of the apparatus and comprises an error detecting function of detecting occurrence of an error such as a sheet jam, and switches between operation and non-operation of the cooling fans or changes a rotation number thereof in operation according to a form of a detected error. Thus, it allows optimization of in-apparatus the temperature in the apparatus control on error occurrence and temperature control of each inside portion of the apparatus on sheet jam occurrence so as to solve various problems relating to in the apparatus temperature status on the error occurrence.
    Type: Grant
    Filed: April 6, 2004
    Date of Patent: January 10, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masanori Yamagata, Tomohide Katsumata, Seiji Yokoyama
  • Image formation apparatus
    Publication number: 20040197108
    Abstract: The image formation apparatus has a plurality of cooling fans inside the main body of the apparatus and comprises an error detecting function of detecting occurrence of an error such as a sheet jam, and switches between operation and non-operation of the cooling fans or changes a rotation number thereof in operation according to a form of a detected error. Thus, it allows optimization of in-apparatus the temperature in the apparatus control on error occurrence and temperature control of each inside portion of the apparatus on sheet jam occurrence so as to solve various problems relating to in the apparatus temperature status on the error occurrence.
    Type: Application
    Filed: April 6, 2004
    Publication date: October 7, 2004
    Applicant: Canon Kabushiki Kaisha
    Inventors: Masanori Yamagata, Tomohide Katsumata, Seiji Yokoyama