Patents by Inventor Yuji Nagao

Yuji Nagao 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).

  • Slot machine
    Patent number: 5050881
    Abstract: This invention relates to a slot machine which comprises random number generating unit and X reels each having a plurality of symbols. All the combinations of the symbols among the reels made when one symbol of each reel is selected are identified by respective numbers, and one random number is generated by the random number generating unit, so that a combination of the symbols bearing an identification number corresponding to the random number is selected.
    Type: Grant
    Filed: September 17, 1990
    Date of Patent: September 24, 1991
    Assignee: Sigma, Incorporated
    Inventor: Yuji Nagao