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Ryuichi Imai

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  • Wakayama-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Threaded joint for pipes
    • Patent number 10,626,345
    • Issue date Apr 21, 2020
    • Nippon Steel Corporation
    • Kunio Goto
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Threaded joint for pipes
    • Patent number 9,321,982
    • Issue date Apr 26, 2016
    • Nippon Steel & Sumitomo Metal Corporation
    • Kunio Goto
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Oil well pipe with threaded joint
    • Patent number 8,741,406
    • Issue date Jun 3, 2014
    • Nippon Steel & Sumitomo Metal Corporation
    • Kunio Goto
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Photocurable composition suitable for rust prevention of a threaded...
    • Patent number 8,586,644
    • Issue date Nov 19, 2013
    • Nippon Steel & Sumitomo Metal Corporation
    • Tomomitsu Nagareo
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Threaded joint for pipes having a lubricating coating
    • Patent number 8,420,581
    • Issue date Apr 16, 2013
    • Nippon Steel & Sumitomo Metal Corporation
    • Kunio Goto
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Threaded joint for steel pipes
    • Patent number 8,409,718
    • Issue date Apr 2, 2013
    • Nippon Steel & Sumitomo Metal Corporation
    • Kunio Goto
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Threaded joint for steel tubes
    • Patent number 8,276,946
    • Issue date Oct 2, 2012
    • Sumitomo Metal Industries, Ltd.
    • Masanari Kimoto
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Threaded joint for steel pipes
    • Patent number 7,883,118
    • Issue date Feb 8, 2011
    • Sumitomo Metal Industries, Ltd.
    • Kunio Goto
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Threaded joint for steel pipe
    • Patent number 7,866,706
    • Issue date Jan 11, 2011
    • Sumitomo Metal Industries, Ltd.
    • Kunio Goto
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Threaded joint for steel pipes
    • Patent number 7,770,935
    • Issue date Aug 10, 2010
    • Sumitomo Metal Industries, Ltd.
    • Ryuichi Imai
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Thread protector
    • Patent number 7,066,209
    • Issue date Jun 27, 2006
    • Sumitomo Metal Industries, Ltd.
    • Ryuichi Imai
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL

Patents Applicationslast 30 patents

  • Information Patent Application

    THREADED JOINT FOR PIPES
    • Publication number 20160230119
    • Publication date Aug 11, 2016
    • NIPPON STEEL & SUMITOMO METAL CORPORATION
    • Kunio GOTO
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    PHOTOCURABLE COMPOSITION SUITABLE FOR RUST PREVENTION OF A THREADED...
    • Publication number 20120112456
    • Publication date May 10, 2012
    • Sumitomo Metal Industries, Ltd.
    • Tomomitsu NAGAREO
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    THREADED JOINT FOR STEEL PIPES
    • Publication number 20110163538
    • Publication date Jul 7, 2011
    • Sumitomo Metal Industries, Ltd.
    • Kunio GOTO
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    Threaded Joint for Steel Pipes
    • Publication number 20110025052
    • Publication date Feb 3, 2011
    • Sumitomo Metal Industries, Ltd.
    • Kunio Goto
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    THREADED JOINT FOR PIPES
    • Publication number 20100301600
    • Publication date Dec 2, 2010
    • Kunio Goto
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    THREADED JOINT FOR PIPES HAVING A LUBRICATING COATING
    • Publication number 20100264649
    • Publication date Oct 21, 2010
    • Kunio Goto
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    THREADED JOINT FOR STEEL TUBES
    • Publication number 20100059986
    • Publication date Mar 11, 2010
    • Masanari Kimoto
    • C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
  • Information Patent Application

    Lubricating coating composition suitable for tubular threaded joints
    • Publication number 20090264326
    • Publication date Oct 22, 2009
    • Ryuichi Imai
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    Screw Joint for Steel Pipe and Process for Manufacturing Thereof
    • Publication number 20080277925
    • Publication date Nov 13, 2008
    • Sumitomo Metal Industries, Ltd.
    • Kunio Goto
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    Threaded joint for steel pipes
    • Publication number 20060228505
    • Publication date Oct 12, 2006
    • Kunio Goto
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    Threaded joint for steel pipes
    • Publication number 20060197343
    • Publication date Sep 7, 2006
    • Ryuichi Imai
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    Thread protector
    • Publication number 20050242587
    • Publication date Nov 3, 2005
    • Ryuichi Imai
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL