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Keiji HONDA

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  • Niigata, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Piston ring
    • Patent number 10,100,929
    • Issue date Oct 16, 2018
    • Kabushiki Kaisha Riken
    • Keiji Honda
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    PISTON RING, AND METHOD FOR MANUFACTURING SAME
    • Publication number 20230083774
    • Publication date Mar 16, 2023
    • Kabushiki Kaisha Riken
    • Hiroki SAITO
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Application

    PISTON RING
    • Publication number 20160245407
    • Publication date Aug 25, 2016
    • Kabushiki Kaisha Riken
    • Keiji HONDA
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...