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Naoyuki Kotake

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pipe coupling
    • Patent number 6,581,907
    • Issue date Jun 24, 2003
    • Nitto Kohki Co., Ltd.
    • Tetsuya Kuwabara
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pipe connector
    • Patent number 6,047,995
    • Issue date Apr 11, 2000
    • Nitto Kohki Co., Ltd.
    • Naoyuki Kotake
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Coupling for a spray apparatus
    • Patent number 5,984,266
    • Issue date Nov 16, 1999
    • Nitto Kohki Co., Ltd.
    • Naoyuki Kotake
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Joint for connection of a corrugated pipe
    • Patent number 5,261,707
    • Issue date Nov 16, 1993
    • Nitto Kohki Co., Ltd.
    • Naoyuki Kotake
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Coupling socket
    • Patent number 5,090,747
    • Issue date Feb 25, 1992
    • Nitto Kohki Co., Ltd.
    • Naoyuki Kotake
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Fluid pipe coupling
    • Patent number 4,988,129
    • Issue date Jan 29, 1991
    • Nitto Kohki Co., Ltd.
    • Noboru Saito
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Quick release coupling
    • Patent number D313067
    • Issue date Dec 18, 1990
    • Nitto Kohki Co., Ltd.
    • Naoyuki Kotake
    • D23 - Environmental heating and cooling
  • Information Patent Grant

    Pipe coupling
    • Patent number 4,951,710
    • Issue date Aug 28, 1990
    • Nitto Kohki Co., Ltd.
    • Naoyuki Kotake
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Forging method for a hollow article
    • Patent number 4,918,969
    • Issue date Apr 24, 1990
    • Nitto Kohki Co., Ltd.
    • Hirosato Takeuchi
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Tube coupling
    • Patent number 4,733,692
    • Issue date Mar 29, 1988
    • Nitto Kohki Co., Ltd.
    • Naoyuki Kotake
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...