TREA

Seiji Mizukami

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  • Kodaira, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of lining channels
    • Patent number 6,241,925
    • Issue date Jun 5, 2001
    • Tokyo Gas Co., Ltd.
    • Mitsutoshi Hayashi
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Self-propelled vehicle within pipe
    • Patent number 6,123,027
    • Issue date Sep 26, 2000
    • Tokyo Gas Co., Ltd.
    • Kiichi Suyama
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...