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Itsuo Korenaga

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  • Kitakyushu, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Compound sleeve roll and method for producing same comprising chamf...
    • Patent number 5,403,670
    • Issue date Apr 4, 1995
    • Hitachi Metals, Ltd.
    • Takuya Ohsue
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Die casting cylinder
    • Patent number 5,010,946
    • Issue date Apr 30, 1991
    • Hitachi Metals, Ltd.
    • Shingo Nogami
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Method of processing roll
    • Patent number 4,250,606
    • Issue date Feb 17, 1981
    • Hitachi Metals, Ltd.
    • Itsuo Korenaga
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL