TREA

Koji Ishida

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Patents Grantslast 30 patents

  • Information Patent Grant

    Granulation process
    • Patent number 4,501,773
    • Issue date Feb 26, 1985
    • Toyo Engineering Corporation
    • Susumu Nioh
    • C05 - FERTILISERS MANUFACTURE THEREOF
  • Information Patent Grant

    Process for concentrating aqueous urea solutions
    • Patent number 4,316,767
    • Issue date Feb 23, 1982
    • Toyo Enginnering Corporation
    • Toyoyasu Saida
    • C07 - ORGANIC CHEMISTRY