Patent ID: 7083604

Claim:
A brief-type diaper, comprising: an outer sheet defining an exterior of the diaper; an inner sheet adapted to come into contact with a wearer; an absorbent for absorbing body fluids; an elastic member for causing portions of the outer and inner sheets to form a waist opening when said elastic member contracts; and a pair of leg openings; wherein at least a portion of the absorbent is located between the leg openings; at least one of the outer and inner sheets has a seamless curved peripheral edge which defines a seamless circumferential edge of the waist opening; the elastic member extends along substantially an entirety of said peripheral edge; the inner sheet has an opening in a central region thereof, said absorbent being exposed through said opening; and said absorbent comprises a back sheet substantially identical in size and shape to the outer sheet and placed between the elastic member and the inner sheet.