Patent 7566091 was granted and assigned to NISSAN MOTOR CO.,LTD. on July, 2009 by the United States Patent and Trademark Office.
An opening portion structure in which an opening portion is provided between edge portions of an outer panel and an inner panel, and inner surfaces of the edge portions respectively of the outer panel and the inner panel are reinforced by an outer reinforcement and an inner reinforcement, wherein a terminal end portion of the outer reinforcement in a longitudinal direction is coupled to the inner panel at a position between an end wall of the inner panel and a terminal end portion of the inner reinforcement in the longitudinal direction.