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Ryuji Maruyama

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Lubricant composition
    • Patent number 11,254,890
    • Issue date Feb 22, 2022
    • Toyota Jidosha Kabushiki Kaisha
    • Ryuji Maruyama
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...

Patents Applicationslast 30 patents

  • Information Patent Application

    LUBRICANT COMPOSITION
    • Publication number 20210054299
    • Publication date Feb 25, 2021
    • TOYOTA JIDOSHA KABUSHIKI KAISHA
    • Ryuji Maruyama
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    LUBRICATING OIL COMPOSITION
    • Publication number 20100093576
    • Publication date Apr 15, 2010
    • SHOWA SHELL SEKIYU K.K.
    • Ryuji Maruyama
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...