Patents by Inventor Eiji Shimamura

Eiji Shimamura 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).

  • Artificial ski slope
    Patent number: 4976422
    Abstract: An artificial ski slope which is adapted to be erected on level ground. A tower is erected at one end of the slope, anchors are embedded at the opposite end of the slope, and suspension cables are strung between the top of the tower and the anchors. A ski slope platform is hung from the suspension cables. Utilizing this basic concept, several ski slope platforms may be radially arrayed about a single tower.
    Type: Grant
    Filed: December 8, 1989
    Date of Patent: December 11, 1990
    Assignee: Kajima Corporation
    Inventor: Eiji Shimamura