Patents by Inventor Sugiko Itagaki

Sugiko Itagaki 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).

  • Transmission system, delivery path controller, load information collecting device, and delivery path controlling method
    Patent number: 7890656
    Abstract: A transmission system, having a plurality of delivery server side routers which communicate with a plurality of delivery servers for delivering a content; and a client side router which communicates with a client device for receiving the content, is configured to include: a database for storing server load states of the plurality of delivery servers, and respective individual link load states for a plurality of delivery paths between the plurality of delivery server side routers and the client side router; and a path control unit for determining a minimum load state delivery path having a minimum load state among the plurality of delivery paths, based on sums of the server load states and the respective individual link load states stored in the database.
    Type: Grant
    Filed: April 1, 2005
    Date of Patent: February 15, 2011
    Assignee: Fujitsu Limited
    Inventors: Koji Nakamichi, Akiko Yamada, Hitoshi Yamada, Akira Nagata, Katsuichi Nakamura, Seiji Nomiyama, Mitsunori Fukazawa, Nobuhiro Kawamura, Sugiko Itagaki, Takashi Iawasaki
  • Transmission bandwidth control device
    Patent number: 7630317
    Abstract: Included are a network information database for storing the statistical information collected from a router, a user request processing unit for accepting and processing a flow forwarding request from a user terminal connected to the network, a route control unit for searching for a route corresponding to the request from the user terminal by referring to the network information database, a load sharing control unit for executing such a load sharing process as to generate router setting information for sharing a transmission load of the network by referring to the network information database, and a router control unit for setting a router based on the route information determined by the route control unit and on the router setting information generated by the load sharing control unit.
    Type: Grant
    Filed: January 30, 2004
    Date of Patent: December 8, 2009
    Assignee: Fujitsu Limited
    Inventors: Akiko Okamura, Koji Nakamichi, Hitoshi Yamada, Akira Nagata, Katsuichi Nakamura, Seiji Nomiyama, Mitsunori Fukazawa, Nobuhiro Kawamura, Sugiko Itagaki, Takashi Iwasaki
  • Transmission system, delivery path controller, load information collecting device, and delivery path controlling method
    Publication number: 20050188073
    Abstract: A transmission system, having a plurality of delivery server side routers which communicate with a plurality of delivery servers for delivering a content; and a client side router which communicates with a client device for receiving the content, is configured to include: a database for storing server load states of the plurality of delivery servers, and respective individual link load states for a plurality of delivery paths between the plurality of delivery server side routers and the client side router; and a path control unit for determining a minimum load state delivery path having a minimum load state among the plurality of delivery paths, based on sums of the server load states and the respective individual link load states stored in the database.
    Type: Application
    Filed: April 1, 2005
    Publication date: August 25, 2005
    Inventors: Koji Nakamichi, Akiko Yamada, Hitoshi Yamada, Akira Nagata, Katsuichi Nakamura, Seiji Nomiyama, Mitsunori Fukazawa, Nobuhiro Kawamura, Sugiko Itagaki, Takashi Iawasaki
  • Transmission bandwidth control device
    Publication number: 20040184483
    Abstract: Included are a network information database for storing the statistical information collected from a router, a user request processing unit for accepting and processing a flow forwarding request from a user terminal connected to the network, a route control unit for searching for a route corresponding to the request from the user terminal by referring to the network information database, a load sharing control unit for executing such a load sharing process as to generate router setting information for sharing a transmission load of the network by referring to the network information database, and a router control unit for setting a router based on the route information determined by the route control unit and on the router setting information generated by the load sharing control unit.
    Type: Application
    Filed: January 30, 2004
    Publication date: September 23, 2004
    Inventors: Akiko Okamura, Koji Nakamichi, Hitoshi Yamada, Akira Nagata, Katsuichi Nakamura, Seiji Nomiyama, Mitsunori Fukazawa, Nobuhiko Kawamura, Sugiko Itagaki, Takashi Iwasaki