Patents by Inventor Tetsu Sugaya

Tetsu Sugaya 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).

  • Wireless terminal device and node device
    Patent number: 7068676
    Abstract: A wireless terminal device includes a wireless interface part having an interface with a wireless transmission path at a physical layer, a link forming part accessing the wireless transmission path via the wireless interface unit and forming a particular link on the wireless transmission path, and a transmission/reception part transmitting and/or receiving transmission information via the particular link formed by the link forming part. The wireless transmission path is formed as a physical channel to which a CSMA system is applied. The CSMA system secures a given transmission quality with respect to a total of the number of links concurrently formable and the amount of the transmission information. The link forming part forms the particular link on the wireless transmission path when initiated.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: June 27, 2006
    Assignee: Fujitsu Limited
    Inventors: Tetsu Sugaya, Makoto Inami, Eiichiro Takahashi, Tomohiro Ishihara, Kazutoshi Motohashi, Katsumasa Sugiyama