TREA

Sigeru Seki

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Patents Grantslast 30 patents

  • Information Patent Grant

    Detergent composition
    • Patent number 4,299,738
    • Issue date Nov 10, 1981
    • Director General of Agency of Industrial Science and Technology
    • Hiroshi Suzuki
    • C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
  • Information Patent Grant

    Sand mold composition
    • Patent number 4,174,224
    • Issue date Nov 13, 1979
    • Kureha Kagaku Kogyo Kabushiki Kaisha
    • Sigeru Seki
    • B22 - CASTING POWDER METALLURGY