Display different states by using two leds, first blinks, then second, then both

Patents Grantslast 30 patents

  • Information Patent Grant

    Process progress display device

    • Patent number 7,363,855
    • Issue date Apr 29, 2008
    • Riso Kagaku Corporation
    • Yasuhiro Esaki
    • G05 - CONTROLLING REGULATING

Patents Applicationslast 30 patents

  • Information Patent Application

    Process progress display device

    • Publication number 20040168587
    • Publication date Sep 2, 2004
    • Yasuhiro Esaki
    • G05 - CONTROLLING REGULATING