Patents by Inventor Kunihiko Isoda

Kunihiko Isoda 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).

  • VLAN control system and method
    Patent number: 6075776
    Abstract: A VLAN control system is provided, which comprises: a remote access server, connected to a home network in the VLAN having a global network, for controlling communication between any moved terminal and the home network with reference to a management table for indicating a location of each terminal under connection; a remote access client, connected to each remote network, for controlling communication between the remote network and the global network with reference to a management table for indicating a correspondence relationship between each terminal which is connected to the remote network and the home network; and a VLAN management server, connected to the global network, for managing packet transmission and the location of each terminal with reference to a management table for indicating a correspondence relationship between each terminal and the remote access server and for indicating a location of each terminal under connection.
    Type: Grant
    Filed: June 6, 1997
    Date of Patent: June 13, 2000
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Shigeaki Tanimoto, Hikoyuki Nakajima, Kunihiko Isoda, Kouichi Nagai, Takashi Masui