TREA

Ryosuke KAMATA

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Patents Grantslast 30 patents

  • Information Patent Grant

    Combined oil ring
    • Patent number 10,520,085
    • Issue date Dec 31, 2019
    • Nippon Piston Ring Co., Ltd.
    • Yasuyuki Murata
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    COMBINED OIL RING
    • Publication number 20180051806
    • Publication date Feb 22, 2018
    • NIPPON PISTON RING CO., LTD
    • Yasuyuki MURATA
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...