Patents by Inventor Ryotaro Matsushita

Ryotaro Matsushita 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).

  • Tunnel management device, communication control device, and tunnel management method
    Patent number: 9768981
    Abstract: A tunnel management device includes: a central processing unit configured to manage a tunnel that establishes a virtual network to be overlaid on a IP network; and a memory coupled to the central processing unit, wherein the central processing unit: extracts a second tunnel in the virtual network that uses a second route in the IP network where a number of times a portion of a first route in the IP network is used by a first tunnel in the virtual network is used is minimized.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: September 19, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Satoshi Imai, Noboru Terai, Ryotaro Matsushita
  • TUNNEL MANAGEMENT DEVICE, COMMUNICATION CONTROL DEVICE, AND TUNNEL MANAGEMENT METHOD
    Publication number: 20150156034
    Abstract: A tunnel management device includes: a central processing unit configured to manage a tunnel that establishes a virtual network to be overlaid on a IP network; and a memory coupled to the central processing unit, wherein the central processing unit: extracts a second tunnel in the virtual network that uses a second route in the IP network where a number of times a portion of a first route in the IP network is used by a first tunnel in the virtual network is used is minimized.
    Type: Application
    Filed: September 17, 2014
    Publication date: June 4, 2015
    Applicant: FUJITSU LIMITED
    Inventors: Satoshi IMAI, Noboru Terai, Ryotaro Matsushita