Patents by Inventor Tsugetaka Isobe

Tsugetaka Isobe 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).

  • Car display lamp
    Patent number: 5578986
    Abstract: There is provided a car display device (100) mainly comprising a control unit (20), clips (30R, 30L), and a plug (40) for power source. An on-off signal which has a predetermined period to flash turn signal lamps (L.sub.L, L.sub.R) is input through either of the clips (30R, 30L) and its duration is begun to time. Then, a reference time for judgment is set to be longer than one period and shorter than two periods of the on-off signal. If the duration of the on-off signal is shorter than that of the reference times, the car display device 100 is actuated and the turn signal lamps (L.sub.L and L.sub.R) are being flashed for a predetermined time, simultaneously. Thus, the car display device (100) of the present invention has a simple construction and enables to send appreciation signals to a driver in a succeeding car with certainty.
    Type: Grant
    Filed: January 17, 1995
    Date of Patent: November 26, 1996
    Assignee: Tatsumi Co., Ltd.
    Inventors: Hiroshi Isobe, Tsugetaka Isobe