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Takayuki Nakajima

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Patents Grantslast 30 patents

  • Information Patent Grant

    Taper thread-cutting spiral pipe tap
    • Patent number 10,730,124
    • Issue date Aug 4, 2020
    • OSG Corporation
    • Takayuki Nakajima
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Tapered pipe thread-machining spiral tap
    • Patent number 10,562,118
    • Issue date Feb 18, 2020
    • OSG Corporation
    • Takayuki Nakajima
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Thread-cutting tap
    • Patent number 9,737,944
    • Issue date Aug 22, 2017
    • OSG Corporation
    • Fuminari Koide
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Spiral fluted tap and method for manufacturing the same
    • Patent number 8,708,621
    • Issue date Apr 29, 2014
    • OSG Corporation
    • Takayuki Nakajima
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Group of taps with prepared hole cutting tools
    • Patent number 8,496,534
    • Issue date Jul 30, 2013
    • OSG Corporation
    • Jiro Osawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Spiral tap
    • Patent number 8,186,915
    • Issue date May 29, 2012
    • OSG Corporation
    • Takayuki Nakajima
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Drill
    • Patent number 8,132,989
    • Issue date Mar 13, 2012
    • OSG Corporation
    • Takahiro Iguchi
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Thread forming tap and method for manufacturing the same
    • Patent number 7,815,512
    • Issue date Oct 19, 2010
    • OSG Corporation
    • Takayuki Nakajima
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Thread mill having flute twisting in direction opposite to rotating...
    • Patent number 7,377,732
    • Issue date May 27, 2008
    • OSG Corporation
    • Haruyasu Andoh
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

  • Information Patent Application

    NITRIDED CUT TAP AND PRODUCTION METHOD THEREFOR
    • Publication number 20240058906
    • Publication date Feb 22, 2024
    • OSG Corporation
    • Teruya HISADA
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    TAPER THREAD-CUTTING SPIRAL PIPE TAP
    • Publication number 20190201993
    • Publication date Jul 4, 2019
    • OSG Corporation
    • Takayuki NAKAJIMA
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    TAPERED PIPE THREAD-MACHINING SPIRAL TAP
    • Publication number 20180318949
    • Publication date Nov 8, 2018
    • OSG Corporation
    • Takayuki Nakajima
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    THREAD-CUTTING TAP
    • Publication number 20160089738
    • Publication date Mar 31, 2016
    • OSG Corporation
    • Fuminari KOIDE
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    SPIRAL TAP
    • Publication number 20150251261
    • Publication date Sep 10, 2015
    • OSG Corporation
    • Takayuki Nakajima
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    SPIRAL FLUTED TAP AND METHOD FOR MANUFACTURING THE SAME
    • Publication number 20120134761
    • Publication date May 31, 2012
    • OSG Corporation
    • Takayuki Nakajima
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    SPIRAL TAP
    • Publication number 20110200404
    • Publication date Aug 18, 2011
    • OSG Corporation
    • Kentarou Norimatsu
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    GROUP OF TAPS WITH PREPARED HOLE CUTTING TOOLS
    • Publication number 20100009766
    • Publication date Jan 14, 2010
    • OSG Corporation
    • Jiro Osawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    SPIRAL FLUTED TAP
    • Publication number 20090317203
    • Publication date Dec 24, 2009
    • OSG Corporation
    • Takayuki Nakajima
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Drill
    • Publication number 20090274528
    • Publication date Nov 5, 2009
    • Takahiro Iguchi
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Spiral tap
    • Publication number 20090214311
    • Publication date Aug 27, 2009
    • OSG Corporation
    • Takayuki Nakajima
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Thread Forming Tap and Method for Manufacturing the Same
    • Publication number 20080268967
    • Publication date Oct 30, 2008
    • OSG CORPORATION
    • Takayuki Nakajima
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Thread mill having flute twisting in direction opposite to rotating...
    • Publication number 20060233623
    • Publication date Oct 19, 2006
    • OSG Corporation
    • Haruyasu Andoh
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Rotary cutting tool having main body partially coated with hard coa...
    • Publication number 20040105730
    • Publication date Jun 3, 2004
    • OSG Corporation
    • Takayuki Nakajima
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR