TREA

Yokota; Hiroshi

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  • Hiroshima, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Self-priming type cetrifugal pump
    • Patent number 6,152,689
    • Issue date Nov 28, 2000
    • Kabushiki Kaisha Yokota Seisakusho
    • Hiroshi Yokota
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Water-hammerless check valve
    • Patent number 6,102,072
    • Issue date Aug 15, 2000
    • Kabushiki Kaisha Yokota Seisakusho
    • Hiroshi Yokota
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Composite-action butterfly valve
    • Patent number 5,957,428
    • Issue date Sep 28, 1999
    • Kabushiki Kaisha Yokota Seisakusho
    • Hiroshi Yokota
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Self-priming centrifugal pump
    • Patent number 5,772,394
    • Issue date Jun 30, 1998
    • Kabushiki Kaisha Yokota Seisakusho
    • Hiroshi Yokota
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Water hammer preventing check valve
    • Patent number 5,746,246
    • Issue date May 5, 1998
    • Kabushiki Kaisha Yokota Seisakusho
    • Hiroshi Yokota
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Composite-action butterfly valve
    • Patent number 5,713,556
    • Issue date Feb 3, 1998
    • Kabushiki Kaisha Yokota Seisakusho
    • Hiroshi Yokota
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...