Patents by Inventor Minoru Ichida

Minoru Ichida 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).

  • Earthquake-resistant door structure and an earthquake-resistant device
    Patent number: 5927019
    Abstract: Disclosed are improvements in earthquake-resistant devices and earthquake-resistant doors. An earthquake-resistant device according to the present invention comprises a stationary frame and a roll partly exposed from and rotatably fixed to the stationary frame. The earthquake-resistant device can be embedded and fixed to the upper or lower lateral side of the door with its roll permitted to rotate vertically, or can be embedded and fixed to the non-hinged longitudinal side of the door with its roll permitted to rotate horizontally. An earthquake-resistant door structure according to the present invention has one or more earthquake-resistant devices built therein, particularly in the upper, lateral side and the non-hinged, longitudinal side of the door, allowing their rolls to appear partly.
    Type: Grant
    Filed: July 15, 1997
    Date of Patent: July 27, 1999
    Inventor: Minoru Ichida