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Yasunori Tomari

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  • Ichihara, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Lubricating oil composition
    • Patent number 5,171,903
    • Issue date Dec 15, 1992
    • Idemitsu Kosan Co., Ltd.
    • Saburo Koyama
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Lubricating oil for metal working
    • Patent number 4,832,860
    • Issue date May 23, 1989
    • Idemitsu Kosan Company Limited
    • Tadashi Katafuchi
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...