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Yuji Okami

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  • Fukuyama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Process for making non-oriented high silicon steel sheet
    • Patent number 4,986,341
    • Issue date Jan 22, 1991
    • Nippon Kokan Kabushiki Kaisha
    • Sadakazu Masuda
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Metal rolling oil composition
    • Patent number 4,693,839
    • Issue date Sep 15, 1987
    • Kao Corporation
    • Hiroshi Kuwamoto
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...