Patents by Inventor Takashi Ikegawa

Takashi Ikegawa 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).

  • Firewall device
    Patent number: 7735129
    Abstract: A firewall apparatus including plural virtual firewalls, each virtual firewall including a dependent firewall policy, is disclosed. The firewall apparatus includes: a distribution management table for managing a user name and a virtual firewall ID; a part configured to receive authentication information for network connection from a user terminal, and hold a user name included in the authentication information; a part configured to report the authentication information to the authentication server; and a part configured to receive an authentication response from the authentication server, and hold a user ID, included in the authentication response, to be provided to the user terminal. The firewall apparatus registers the user ID in the distribution management table associating the user ID with the user name.
    Type: Grant
    Filed: February 4, 2004
    Date of Patent: June 8, 2010
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Kazuhiko Nagata, Taisuke Oka, Ryoichi Suzuki, Takashi Ikegawa, Hiroyuki Ichikawa, Tadashi Ishikawa
  • Firewall device
    Publication number: 20060143699
    Abstract: A firewall apparatus including plural virtual firewalls, each virtual firewall including a dependent firewall policy, is disclosed. The firewall apparatus includes: a distribution management table for managing a user name and a virtual firewall ID; a part configured to receive authentication information for network connection from a user terminal, and hold a user name included in the authentication information; a part configured to report the authentication information to the authentication server; and a part configured to receive an authentication response from the authentication server, and hold a user ID, included in the authentication response, to be provided to the user terminal. The firewall apparatus registers the user ID in the distribution management table associating the user ID with the user name.
    Type: Application
    Filed: February 4, 2004
    Publication date: June 29, 2006
    Applicant: Nippon Telegraph And Telephone Corporation
    Inventors: Kazuhiko Nagata, Taisuke Oka, Ryoichi Suzuki, Takashi Ikegawa, HIroyuki Ichikawa, Tadashi Ishikawa