Patents by Inventor Toshihiro Koyama

Toshihiro Koyama 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).

  • Method and system for controlling an interstand tension in a continuous rolling mill
    Patent number: 4507946
    Abstract: In a method and a system for controlling an interstand tension in a continuous rolling mill having a looper provided between a pair of successive rolling stands and driven by a looper drive motor, a correction to the speed target value for the looper drive motor is determined in accordance with the deviation of a detected looper operating angle from an angle target value, and the looper drive motor is controlled in accordance with the speed of corrected speed target value.
    Type: Grant
    Filed: April 19, 1983
    Date of Patent: April 2, 1985
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventors: Toshihiro Koyama, Yoshiharu Anbe, Takuo Funahashi