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Kenji Fujita

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  • Yokosuka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Apparatus for cleaning door frames of coke ovens
    • Patent number 4,344,204
    • Issue date Aug 17, 1982
    • Sumitomo Heavy Industries, Ltd.
    • Kenji Fujita
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Apparatus for cleaning coke oven door
    • Patent number 4,300,257
    • Issue date Nov 17, 1981
    • Sumitomo Heavy Industries, Ltd.
    • Kazuhiko Ibe
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Door lifter for coke oven
    • Patent number 4,292,137
    • Issue date Sep 29, 1981
    • Sumitomo Heavy Industries, Ltd.
    • Kenji Fujita
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...