Patents by Inventor Yoshikatsu NUMAKURA

Yoshikatsu NUMAKURA 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, image recoloring apparatus and image forming method
    Patent number: 10324401
    Abstract: An image forming apparatus includes a first image forming section configured to form an image on a sheet with a decolorable color material decolorable, a second image forming section configured to form an image on the sheet with a non-decolorable color material, a fixing device configured to heat the sheet on which the images are formed with the decolorable color material and the non-decolorable color material, and a cooling section configured to cool the heated sheet.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: June 18, 2019
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Yoshikatsu Numakura
  • Authentication system and mobile terminal for executing user authentication with ultrasonic communication function
    Patent number: 9967432
    Abstract: An authentication system comprises a mobile terminal configured to output an ultrasonic wave including authentication information; and a first device configured to receive the ultrasonic wave output by the mobile terminal, carry out authentication on the basis of the obtained authentication information extracted from the ultrasonic wave and allow execution of a job at the time the authentication is established.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: May 8, 2018
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Yoshikatsu Numakura
  • AUTHENTICATION SYSTEM AND MOBILE TERMINAL FOR EXECUTING USER AUTHENTICATION WITH ULTRASONIC COMMUNICATION FUNCTION
    Publication number: 20180069987
    Abstract: An authentication system comprises a mobile terminal configured to output an ultrasonic wave including authentication information; and a first device configured to receive the ultrasonic wave output by the mobile terminal, carry out authentication on the basis of the obtained authentication information extracted from the ultrasonic wave and allow execution of a job at the time the authentication is established.
    Type: Application
    Filed: September 6, 2016
    Publication date: March 8, 2018
    Inventor: Yoshikatsu Numakura
  • Image processing apparatus and image processing method
    Patent number: 9365068
    Abstract: According to one embodiment, an image processing apparatus includes an image processing unit and a control unit. The image processing unit acquires information of a printing rate representing a ratio of an image printed on a sheet from the sheet. The control unit determines a decoloring temperature used for a decoloring process based on the acquired information of the printing rate.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: June 14, 2016
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Yoshikatsu Numakura
  • IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD
    Publication number: 20160067998
    Abstract: According to one embodiment, an image processing apparatus includes an image processing unit and a control unit. The image processing unit acquires information of a printing rate representing a ratio of an image printed on a sheet from the sheet. The control unit determines a decoloring temperature used for a decoloring process based on the acquired information of the printing rate.
    Type: Application
    Filed: August 3, 2015
    Publication date: March 10, 2016
    Inventor: Yoshikatsu NUMAKURA