Patents by Inventor Eiichi Tomoeda

Eiichi Tomoeda 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).

  • Patent number: 4274083
    Abstract: Apparatus for identifying each of a plurality of moving objects including an electromagnetic field generator for radiating over a given area an electromagnetic field having a predetermined frequency, a plurality of moving object identification signal generators, each adapted for mounting on one of the movable objects and an identification receiver for receiving signals generated by transmitter units in the moving object identification signal generators. The identification receiver generates an output signal having a code corresponding to the frequency of the transmitter unit whose signal is being received.
    Type: Grant
    Filed: December 12, 1978
    Date of Patent: June 16, 1981
    Inventor: Eiichi Tomoeda