TREA

Masayuki Hatanaka

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  • Yokohama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Lubricant for the production of seamless tubes
    • Patent number 4,711,733
    • Issue date Dec 8, 1987
    • Nippon Kokan Kabushiki Kaisha
    • Noboru Kanda
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Steel pipe rolling mill
    • Patent number 4,449,386
    • Issue date May 22, 1984
    • Nippon Kokan Kabushiki Kaisha
    • Shinji Akita
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Steel pipe rolling mill
    • Patent number 4,444,035
    • Issue date Apr 24, 1984
    • Nippon Kokan Kabushiki Kaisha
    • Shinji Akita
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Steel pipe rolling mill
    • Patent number 4,387,584
    • Issue date Jun 14, 1983
    • Nippon Kokan Kabushiki Kaisha
    • Shinji Akita
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...