Patents by Inventor Tetsufumi Shibata

Tetsufumi Shibata 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).

  • Framing member
    Patent number: 6088989
    Abstract: A frame material that can be easily formed as a pillar or beam by appropriately adjusting the length and/or strength thereof, a joint portion of which is uniform and smooth, a residual portion of which can be used as a joint, and which can easily be combined with other building materials. The frame material is formed into an elongate shape, and a cross section crossing at right angles a longitudinal axis thereof is formed into a rectangular shape with the length of a shorter side of the rectangular cross section being made one-third of the length of a longer side.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: July 18, 2000
    Assignee: Ado Supesu Kabusiki Kaisha
    Inventors: Yoshitaka Matsu, Shigehisa Maruyama, Tetsufumi Shibata