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Miyuki Usui

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  • Kashiwazaki, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Combined oil control ring
    • Patent number 7,306,233
    • Issue date Dec 11, 2007
    • Kabushiki Kaisha Riken
    • Miyuki Usui
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Spacer expander
    • Patent number 7,243,596
    • Issue date Jul 17, 2007
    • Kabushiki Kaisha Rikon
    • Miyuki Usui
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    PISTON RING
    • Publication number 20100140880
    • Publication date Jun 10, 2010
    • Toshikatsu Hayashi
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    Spacer expander
    • Publication number 20060169135
    • Publication date Aug 3, 2006
    • Kabushiki Kaisha Riken
    • Miyuki Usui
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Three piece-combined oil ring
    • Publication number 20060061043
    • Publication date Mar 23, 2006
    • Kabushiki Kaisha Riken
    • Junya Takahashi
    • C21 - METALLURGY OF IRON
  • Information Patent Application

    Combination oil ring
    • Publication number 20060027976
    • Publication date Feb 9, 2006
    • Miyuki Usui
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...