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Satoshi Koizumi

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  • Kashiwazaki-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Spacer for internal combustion engines
    • Patent number D927574
    • Issue date Aug 10, 2021
    • Kabushiki Kaisha Riken
    • Satoshi Koizumi
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Combined oil control ring
    • Patent number 9,410,625
    • Issue date Aug 9, 2016
    • Kabushiki Kaisha Riken
    • Masahiro Nakazawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    SPACER EXPANDER AND OIL CONTROL RING INCLUDING SAME
    • Publication number 20210164566
    • Publication date Jun 3, 2021
    • Kabushiki Kaisha Riken
    • Hiroshi SHIMIZU
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    COMBINED OIL CONTROL RING
    • Publication number 20140265149
    • Publication date Sep 18, 2014
    • Kabushiki Kaisha Riken
    • Masahiro Nakazawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...