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Hatsutaro Mizuno

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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

    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

    Oil ring assembly
    • Patent number 4,979,757
    • Issue date Dec 25, 1990
    • Kabushiki Kaisha Riken
    • Hatsutaro Mizuno
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...