Patents by Inventor Teruhito Shirai

Teruhito Shirai 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 of loading billet in the indirect extruding press
    Patent number: 4631949
    Abstract: A method of loading billet in the indirect extruding press for an alignment of the billet in which, after the billet (10) is held between the dummy block (11) at the side of the extruding stem (4) and the surface of the dies (6) of the dies stem (3), the container (1) is moved toward the side of the billet (10), thereby preventing the blockage of the billet and enabling the obtaining of pipes of a good roundness precision and a reduction in the thickness deflecting ratio of the pipes.
    Type: Grant
    Filed: October 2, 1985
    Date of Patent: December 30, 1986
    Assignee: Furukawa Aluminum Co., Ltd.
    Inventors: Masahiro Iwata, Teruhito Shirai, Toshio Watanabe