TREA

Yasumasa Homma

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  • Yokohama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Process for hydrotreating heavy hydrocarbon oil
    • Patent number 4,191,636
    • Issue date Mar 4, 1980
    • Chiyoda Chemical Engineering and Construction Co., Ltd.
    • Yoshio Fukui
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Two-step hydrodesulfurization of heavy hydrocarbon oil
    • Patent number 4,166,026
    • Issue date Aug 28, 1979
    • Chiyoda Chemical Engineering & Construction Co., Ltd.
    • Yoshio Fukui
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL