TREA

Toshikatsu Ohtsubo

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  • Omuta, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Preparation of carbonaceous products
    • Patent number 4,210,517
    • Issue date Jul 1, 1980
    • Mitsui Mining Co. Ltd.
    • Hisashi Murakami
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Process for the production of solvent-refined coal useful as starti...
    • Patent number 4,202,756
    • Issue date May 13, 1980
    • Mitsui Mining Co., Ltd.
    • Hisashi Murakami
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Process for liquefying coal
    • Patent number 4,111,786
    • Issue date Sep 5, 1978
    • Mitsui Coke Co., Ltd.
    • Hidehiko Sugimura
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...