Saburoh Sugawara

Person

  • Tokyo, JP

Patents Grantslast 30 patents

  • Information Patent Grant

    Automatic focusing projector

    • Patent number 4,905,034
    • Issue date Feb 27, 1990
    • Asahi Kogaku Kogyo Kabushiki Kaisha
    • Yasuyuki Tejima
    • G02 - OPTICS