TREA

Hajime Nagayama

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  • Hino, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Three phase fluidized bed water purifying process
    • Patent number 4,620,931
    • Issue date Nov 4, 1986
    • Waseda University
    • Akira Hirata
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Desulfurizing agent
    • Patent number 4,540,553
    • Issue date Sep 10, 1985
    • Onoda Cement Co., Inc.
    • Hiroshi Hagiwara
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL