TREA

Akihito Totsugi

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  • Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of shutting off conduit and pipe conduit shutoff apparatus
    • Patent number 8,186,648
    • Issue date May 29, 2012
    • Waterworks Technology Development Organization Co., Ltd.
    • Atsushi Sakai
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Spacer-less type pipe joint and packing ring used for the same
    • Patent number 6,773,040
    • Issue date Aug 10, 2004
    • Waterworks Technology Development Organization Co., Ltd.
    • Kikuo Saito
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Flexible fluid-transport pipe joint apparatus
    • Patent number 6,659,511
    • Issue date Dec 9, 2003
    • Waterworks Technology Development Organization Co., Ltd.
    • Hideki Yoneyama
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pipe connecting apparatus
    • Patent number 6,019,396
    • Issue date Feb 1, 2000
    • Waterworks Technology Development Organization Co., Ltd.
    • Kikuo Saito
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents