TREA

TOKYO METROPOLITAN SEWERAGE SERVICE CORPORATION

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  • Tokyo, JP
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    BLOWER AND VENTILATION SYSTEM
    • Publication number 20210071405
    • Publication date Mar 11, 2021
    • TOKYO METROPOLITAN SEWERAGE SERVICE CORPORATION
    • Yukitoshi IWASA
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    OPENING/CLOSING DEVICE
    • Publication number 20180135266
    • Publication date May 17, 2018
    • NIPPON KOEI CO., LTD.
    • Motonobu ITO
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    BLOWER AND VENTILATING SYSTEM
    • Publication number 20180087261
    • Publication date Mar 29, 2018
    • TOKYO METROPOLITAN SEWERAGE SERVICE CORPORATION
    • Yukitoshi IWASA
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    BLOWER AND VENTILATION SYSTEM
    • Publication number 20140227954
    • Publication date Aug 14, 2014
    • TOKYO METROPOLITAN SEWERAGE SERVICE CORPORATION
    • Keiichi SONE
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Application

    VORTEX FLOW TYPE WATER SURFACE CONTROL DEVICE FOR DRAINING DEVICE
    • Publication number 20130240421
    • Publication date Sep 19, 2013
    • NIPPON KOEI CO., LTD.
    • Hiromi Watanabe
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    OPENING/CLOSING DEVICE
    • Publication number 20110297250
    • Publication date Dec 8, 2011
    • NIPPON KOEI CO., LTD.
    • Hiroshi Komatsu
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    OPENING/CLOSING DEVICE
    • Publication number 20110290343
    • Publication date Dec 1, 2011
    • NIPPON KOEI CO., LTD.
    • Hiroshi Komatsu
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    VORTEX FLOW TYPE WATER SURFACE CONTROL DEVICE FOR DRAINING DEVICE
    • Publication number 20110284441
    • Publication date Nov 24, 2011
    • TOKYO METROPOLITAN GOVERNMENT
    • Ikuo Uemura
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    Vortex Flow Type Water Surface Control Device for Draining Device
    • Publication number 20080023074
    • Publication date Jan 31, 2008
    • TOKYO METROPOLITAN GOVERNMENT
    • Ikuo Uemura
    • E03 - WATER SUPPLY SEWERAGE

Trademarklast 30 trademarks

  • Information Trademark

    79134470 - DO-JET METHOD
    • Serial number 79134470
    • Registration number 4745542
    • Filing date Jul 1, 2013
    • Tokyo Metropolitan; Sewerage Service Corporation
    • 7 - Machines and machine tools