TREA

Ichiro Hiraiwa

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  • Kanagawa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Control for use with reverse osmotic treatment system
    • Patent number 4,772,385
    • Issue date Sep 20, 1988
    • Ebara Corporation
    • Koichi Yamada
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Membrane separator
    • Patent number 4,680,109
    • Issue date Jul 14, 1987
    • Ebara Corporation
    • Koichi Yamada
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL