Patents by Inventor Ryuji Hamada

Ryuji Hamada has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Cold rolling method for a metal strip and a mill array
    Patent number: 5636544
    Abstract: A rolled metal strip which is free of torsion and on which a superior gloss is obtained by a combination of cross rolling and parallel rolling upon cold rolling a metal strip and by rolling the material in a parallel rolling manner in either at least the final stand (in the case of a tandem mill array) or at least the final pass (in the case of a single stand mill such as a reversible mill or the like). If necessary, the metal strip is preliminarily rolled by cross rolling at a rolling reduction rate of over 5% and then cold rolled by either parallel rolling or a combination of cross rolling and parallel rolling.
    Type: Grant
    Filed: January 31, 1995
    Date of Patent: June 10, 1997
    Assignees: Sumitomo Metal Industries, Ltd., Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Atsushi Tomizawa, Hideo Yamamoto, Takeshi Masui, Kiyotaka Hori, Ryuji Hamada, Shunji Kamata, Toru Kaneko, Yutaka Matsuda, Kazuhiko Horie, Tsuneo Nakano, Shoichi Hashimoto, Hideaki Furumoto