Shigeo Yokota

Person

  • Chiyoda-ku, JP

Patents Grantslast 30 patents

  • Information Patent Grant

    Clean room device

    • Patent number 6,572,468
    • Issue date Jun 3, 2003
    • Hitachi Plant Engineering & Construction Co., Ltd.
    • Tsutomu Sasaki
    • F24 - HEATING RANGES VENTILATING