TREA

Yukio Hirama

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  • Mito-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Strip wiper device, strip wiping method, rolling mill and rolling m...
    • Patent number 6,581,429
    • Issue date Jun 24, 2003
    • Hitachi, Ltd.
    • Yoshio Takakura
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Plate rolling mill
    • Patent number 6,446,477
    • Issue date Sep 10, 2002
    • Hitachi, Ltd.
    • Kenichi Yasuda
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Plate rolling mill
    • Patent number 6,250,126
    • Issue date Jun 26, 2001
    • Hitachi, Ltd.
    • Kenichi Yasuda
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Rolling mill and rolling method
    • Patent number 6,012,319
    • Issue date Jan 11, 2000
    • Hitachi, Ltd.
    • Kenjiro Narita
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Rolling mill and rolling method
    • Patent number 6,003,355
    • Issue date Dec 21, 1999
    • Hitachi, Ltd.
    • Kenichi Yasuda
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Tandem mill system and work roll crossing mill
    • Patent number 5,657,655
    • Issue date Aug 19, 1997
    • Hitachi, Ltd.
    • Kenichi Yasuda
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    System and method for manufacturing thin plate by hot working
    • Patent number 5,632,177
    • Issue date May 27, 1997
    • Hitachi, Ltd.
    • Kenjiro Narita
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Rolling mill and method
    • Patent number 5,560,237
    • Issue date Oct 1, 1996
    • Kenichi Yasuda
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Rolling mill and rolling method
    • Patent number 5,406,817
    • Issue date Apr 18, 1995
    • Hitachi, Ltd.
    • Yoshio Takakura
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

  • Information Patent Application

    Plate rolling mill
    • Publication number 20010020380
    • Publication date Sep 13, 2001
    • Hitachi, Ltd.
    • Kenichi Yasuda
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    Strip rolling mill and strip rolling method
    • Publication number 20010018840
    • Publication date Sep 6, 2001
    • Hitachi, Ltd.
    • Mistuo Nihei
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...