Patents by Inventor Noriji Asao

Noriji Asao 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).

  • Foldable puzzle cards
    Patent number: 4429878
    Abstract: Both ends of four strips each including four equal foldable card boards are superposed one upon the other to form a rectangular frame. End card boards of two adjacent strips are foldably interconnected and front and rear surfaces of each card board are provided with predetermined patterns. By suitably folding respective strips in one or opposite direction a desired pattern can be formed.
    Type: Grant
    Filed: October 15, 1981
    Date of Patent: February 7, 1984
    Inventor: Noriji Asao