TREA

Hidetaka Sawada

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  • Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Apparatus for manufacturing ultra-pure water
    • Patent number 5,250,183
    • Issue date Oct 5, 1993
    • Hitachi Zosen Corporation
    • Hidetaka Sawada
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Degreasing-cleaning method
    • Patent number 5,250,117
    • Issue date Oct 5, 1993
    • Hitachi Zosen Corporation
    • Takashi Hirano
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL