Patents by Inventor Kobayashi Tokuzo

Kobayashi Tokuzo 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).

  • Free access floor panel
    Patent number: 4856256
    Abstract: A free access floor panel including a top plate and a bottom plate made of sheet steel of which a peripheral surface thereof if formed by upright walls. The top and the bottom plates of the floor panel are integrated into a single body along the entire peripheries, with either of the top or bottom plates being divided on a diagonal line, by being crimped to assemble a quadrate floor panel. The floor panels may also be filled with inorganic hollow grains.
    Type: Grant
    Filed: September 10, 1987
    Date of Patent: August 15, 1989
    Assignee: O M Kiki Co., Ltd.
    Inventor: Kobayashi Tokuzo