Patents Assigned to Ishikawajima-Harima Jukogyo Kabushiki Kaishe
  • Multi-pass rolling method and multi-path rolling-mill stand for carrying out said method
    Patent number: 4843855
    Abstract: A multi-pass rolling method and a multi-pass rolling-mill stand best adapted to carry out said multi-pass rolling method. In a rolling-mill stand having three or more work rolls arranged one above the other, a workpiece is simultaneously rolled at two or more points by at least one of the work rolls.
    Type: Grant
    Filed: April 8, 1988
    Date of Patent: July 4, 1989
    Assignees: Ishikawajima-Harima Jukogyo Kabushiki Kaishe, Nippon Steel Corporation, Kabushiki Kaisha Toshiba
    Inventors: Hiroaki Kuwano, Takao Kawanami, Ken Okudaira, Akihiro Tanaka