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Osamu Sudo

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  • Fijisawa, JA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Device for sealing steel doors of coke oven
    • Patent number 3,977,125
    • Issue date Aug 31, 1976
    • Nippon Oil Seal Industry Co., Ltd.
    • Osamu Sudo
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Device for sealing doors of coke oven
    • Patent number 3,952,454
    • Issue date Apr 27, 1976
    • Nippon Oil Seal Industry Co., Ltd.
    • Osamu Sudo
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...