TREA

Hitoshi Ogasawara

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  • Hitachi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Apparatus for sludge thickening
    • Patent number 4,960,512
    • Issue date Oct 2, 1990
    • Hitachi, Ltd.
    • Kenji Baba
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Process for sludge thickening
    • Patent number 4,904,388
    • Issue date Feb 27, 1990
    • Hitachi, Ltd.
    • Kenji Baba
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE