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Sumio Ono

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  • Kashiwazaki, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Steel oil ring assembly
    • Patent number 5,129,661
    • Issue date Jul 14, 1992
    • Kabushiki Kaisha Riken
    • Sumio Ono
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Combined oil ring assembly
    • Patent number 5,088,743
    • Issue date Feb 18, 1992
    • Kabushiki Kaisha Riken
    • Sumio Ono
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Steel oil ring assembly
    • Patent number 5,087,055
    • Issue date Feb 11, 1992
    • Kabushiki Kaisha Riken
    • Sumio Ono
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Combined oil ring assembly
    • Patent number 5,042,825
    • Issue date Aug 27, 1991
    • Kabushiki Kaisha Riken
    • Sumio Ono
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Oil ring structure having reduced rigidity
    • Patent number 4,722,535
    • Issue date Feb 2, 1988
    • Toyota Jidosha Kabushiki Kaisha
    • Yorishige Maeda
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Corrugated expander for piston ring assembly
    • Patent number 4,542,907
    • Issue date Sep 24, 1985
    • Kabushiki Kaisha Riken
    • Ko Chiba
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...