Patents by Inventor Tsuneyuki Takai

Tsuneyuki Takai 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).

  • Relay device, communication system, communication method, and computer program
    Patent number: 8351440
    Abstract: An IP address and a MAC address of each of communication devices connected to a plurality of communication ports provided in a switching hub device are associated in an ARP table. Also, priority information representing the communication priority of each communication device is received, and the received priority information is associated with the MAC address of the communication device. When no IP address of a transmission source included in a data packet received at each communication port exists in the ARP table, the IP address and the MAC address of the transmission source are added to the ARP table and priority information is attached to the ARP table.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: January 8, 2013
    Assignee: Fujitsu Limited
    Inventors: Seigo Sawada, Takumi Iwai, Yoshinari Oshio, Takao Nakamura, Tsuneyuki Takai
  • RELAY DEVICE, COMMUNICATION SYSTEM, COMMUNICATION METHOD, AND COMPUTER PROGRAM
    Publication number: 20090080447
    Abstract: An IP address and a MAC address of each of communication devices connected to a plurality of communication ports provided in a switching hub device are associated in an ARP table. Also, priority information representing the communication priority of each communication device is received, and the received priority information is associated with the MAC address of the communication device. When no IP address of a transmission source included in a data packet received at each communication port exists in the ARP table, the IP address and the MAC address of the transmission source are added to the ARP table and priority information is attached to the ARP table.
    Type: Application
    Filed: September 19, 2008
    Publication date: March 26, 2009
    Inventors: Seigo SAWADA, Takumi Iwai, Yoshinari Oshio, Takao Nakamura, Tsuneyuki Takai