Mutsumi Ishii

Person

  • Tokyo, JP

Patents Grantslast 30 patents

  • Information Patent Grant

    Uninterruptible power supply

    • Patent number D562232
    • Issue date Feb 19, 2008
    • Mitsubishi Denki Kabushiki Kaisha
    • Masaharu Sawatani
    • D13 - Equipment for production, distribution, or transformation of energy