TREA

Yonekichi Ogawa

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Filtering device
    • Patent number 5,092,991
    • Issue date Mar 3, 1992
    • Suisaku Kabushiki Kaisha
    • Yonekichi Ogawa
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filtering device
    • Patent number 4,944,871
    • Issue date Jul 31, 1990
    • Suisaku Kabushiki Kaisha
    • Yonekichi Ogawa
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filtering device
    • Patent number 4,897,188
    • Issue date Jan 30, 1990
    • Suisaku Kabushiki Kaisha
    • Yonekichi Ogawa
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filter
    • Patent number 4,556,485
    • Issue date Dec 3, 1985
    • Suisaku Kabushiki Kaisha
    • Yonekichi Ogawa
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filter
    • Patent number 4,552,657
    • Issue date Nov 12, 1985
    • Suisaku Kabushiki Kaisha
    • Yonekichi Ogawa
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Knockdown type filtering device
    • Patent number 4,133,760
    • Issue date Jan 9, 1979
    • Yonekichi Ogawa
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING