Patent 7484755 was granted and assigned to Takata Corporation on February, 2009 by the United States Patent and Trademark Office.
An air belt includes a folded body of a bag-shaped belt, a cover that surrounds the folded body, and a stitching thread. The bag-shaped belt is formed of an overlapped body by overlapping two material sheets and each of the peripheral edge portions of the material sheets in the overlapped body is combined by a seam to form a bag shape. In the folded body, stitching thread is provided in an outer edge side from the seam.