TREA

Takao Katayama

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  • Ichihara, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Lubricants for improving fatigue life
    • Patent number 4,501,678
    • Issue date Feb 26, 1985
    • Idemitsu Kosan Company Limited
    • Takao Katayama
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Refrigerator oil composition
    • Patent number 4,497,721
    • Issue date Feb 5, 1985
    • Idemitsu Kosan Company Limited
    • Takao Katayama
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...