Patents by Inventor Nobuo Yumoto

Nobuo Yumoto 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).

  • Seamless two-way roadway communication system
    Patent number: 6546249
    Abstract: The road communication system and method seamlessly communicate different data sets of information between a stationary unit and a mobile unit while the mobile unit is moving across the cell boundaries of the stationary units. Furthermore, the road communication system and method utilize a common frequency to seamlessly communicate data substantially without the carrier and code interference.
    Type: Grant
    Filed: February 16, 2000
    Date of Patent: April 8, 2003
    Assignee: Sumitomo Electric Industries, LTD
    Inventors: Masaharu Imai, Nobuo Yumoto