TREA

Ryoichiro Takahashi

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  • Yokohama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Cold rolling oil for steel sheet
    • Patent number 5,122,288
    • Issue date Jun 16, 1992
    • Nihon Parkerizing Co., Ltd.
    • Kaoru Shiraishi
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Cold rolling oil for steel sheet
    • Patent number 4,585,564
    • Issue date Apr 29, 1986
    • Nippon Kokan Kabushiki Kaisha
    • Eisuke Tohmata
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...