Patents by Inventor Daisuke Kuwata

Daisuke Kuwata 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).

  • IP router device having a TCP termination function and a medium thereof
    Patent number: 6829238
    Abstract: When a plurality of IP packets to be relayed, which form a TCP connection, pass through a router device, converting units rewrite part of IP address information and port number information within the packets according to a predetermined rule in cooperation with a TCP connection management database. A stream linking unit extracts the information indicating the original connection destination of a TCP connection from the packets, and links two TCP connections with streams. Converting units rewrite part of the IP address information and the port number information within a plurality of packets to form a TCP connection with an original connection destination according to a predetermined rule in cooperation with the management database.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: December 7, 2004
    Assignees: Fujitsu Limited, NTT Docomo, Inc.
    Inventors: Masanaga Tokuyo, Itaru Nakagawa, Satoru Chikuma, Nobutsugu Fujino, Tetsuya Taniguchi, Takanori Hisanaga, Michiyasu Chikada, Daisuke Kuwata
  • IP router device having a TCP termination function and a medium thereof
    Publication number: 20010017862
    Abstract: When a plurality of IP packets to be relayed, which form a TCP connection, pass through a router device, converting units rewrite part of IP address information and port number information within the packets according to a predetermined rule in cooperation with a TCP connection management database. A stream linking unit extracts the information indicating the original connection destination of a TCP connection from the packets, and links two TCP connections with streams. Converting units rewrite part of the IP address information and the port number information within a plurality of packets to form a TCP connection with an original connection destination according to a predetermined rule in cooperation with the management database.
    Type: Application
    Filed: February 21, 2001
    Publication date: August 30, 2001
    Inventors: Masanaga Tokuyo, Itaru Nakagawa, Satoru Chikuma, Nobutsugu Fujino, Tetsuya Taniguchi, Takanori Hisanaga, Michiyasu Chikada, Daisuke Kuwata