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Jun Maeda

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Patents Grantslast 30 patents

  • Information Patent Grant

    Threaded joint for an oil well pipe and method for manufacturing same
    • Patent number 7,677,069
    • Issue date Mar 16, 2010
    • Sumitomo Metal Industries, Ltd.
    • Jun Maeda
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    Threaded joint for pipes
    • Patent number 6,957,834
    • Issue date Oct 25, 2005
    • Sumitomo Metal Industries, Ltd.
    • Jun Maeda
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Method of manufacturing a threaded joint for oil well pipes
    • Patent number 6,877,202
    • Issue date Apr 12, 2005
    • Sumitomo Metal Industries, Ltd.
    • Jun Maeda
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Slim-type threaded joint for oil well pipes
    • Patent number 6,755,444
    • Issue date Jun 29, 2004
    • Sumitomo Metal Industries, Ltd.
    • Katsutoshi Sumitani
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pipe joint
    • Patent number 6,698,802
    • Issue date Mar 2, 2004
    • Sumitomo Metal Industries, Ltd.
    • Shigeo Nagasaku
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Threaded joint for oil well pipes
    • Patent number 5,829,797
    • Issue date Nov 3, 1998
    • Sumitomo Metal Industries, Ltd.
    • Miyuki Yamamoto
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Thread joint for tube
    • Patent number 5,649,725
    • Issue date Jul 22, 1997
    • Sumitomo Metal Industries Limited
    • Shigeo Nagasaku
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

  • Information Patent Application

    Threaded joint for oil an well pipe and method for manufacturing same
    • Publication number 20070132238
    • Publication date Jun 14, 2007
    • Jun Maeda
    • C21 - METALLURGY OF IRON
  • Information Patent Application

    Threaded joint for pipes
    • Publication number 20040217592
    • Publication date Nov 4, 2004
    • Jun Maeda
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Method of manufacturing a threaded joint for oil well pipes
    • Publication number 20040123442
    • Publication date Jul 1, 2004
    • Jun Maeda
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    SLIM-TYPE THREADED JOINT FOR OIL WELL PIPES
    • Publication number 20040075275
    • Publication date Apr 22, 2004
    • Katsutoshi Sumitani
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Joint with tapered threads
    • Publication number 20030132633
    • Publication date Jul 17, 2003
    • Jun Maeda
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Pipe joint
    • Publication number 20030122378
    • Publication date Jul 3, 2003
    • Shigeo Nagasaku
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Threaded joint for an oil well pipe
    • Publication number 20030102669
    • Publication date Jun 5, 2003
    • Takuya Tsujimura
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...