Patents by Inventor Ken'ichi Imamatsu

Ken'ichi Imamatsu 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).

  • Method and apparatus for updating software in radio terminal device
    Patent number: 8245220
    Abstract: A method for updating software in a radio terminal device of a mobile communication system, wherein a base station and radio terminal devices are connected mutually through radio communication channels, including the steps of notifying version information on a control-software of the radio terminal device to a software-supply device connected to a network by the radio terminal device, determining a necessity of updating the control-software by comparing the version information received from the radio terminal device with latest version information stored in and managed by the software-supply device, and downloading new control-software that is appropriate to update the version of the control-software to the radio terminal device by the software-supply device if updating of the control-software is needed.
    Type: Grant
    Filed: November 10, 2003
    Date of Patent: August 14, 2012
    Assignee: Fujitsu Limited
    Inventor: Ken'ichi Imamatsu
  • Method and apparatus for updating software in radio terminal device
    Patent number: 6687901
    Abstract: A method for updating software in a radio terminal device of a mobile communication system, wherein a base station and radio terminal devices are connected mutually through radio communication channels, including the steps of notifying version information on a control-software of the radio terminal device to a software-supply device connected to a network by the radio terminal device, determining a necessity of updating the control-software by comparing the version information received from the radio terminal device with latest version information stored in and managed by the software-supply device, and downloading new control-software that is appropriate to update the version of the control-software to the radio terminal device by the software-supply device if updating of the control-software is needed.
    Type: Grant
    Filed: August 9, 2000
    Date of Patent: February 3, 2004
    Assignee: Fujitsu Limited
    Inventor: Ken'ichi Imamatsu