Patent ID: 7150733

Claim:
An open-type disposable diaper having a front waist region, a rear waist region and a crotch region extending between said front and rear waist regions, said diaper comprising: a liquid-pervious topsheet; a liquid-impervious backsheet; a liquid-absorbent core between said sheets and extending between said front and rear waist regions; a pair of end flaps extending in a transverse direction outside longitudinally opposite ends of said core; a pair of side flaps extending in a longitudinal direction outside transversely opposite side edges of said core; tape fasteners attached to said side flaps in said rear waist region so as to extend in the transverse direction, wherein said diaper is adapted to be worn with a body waste care pad laid on said topsheet and with said tape fasteners being anchored on an outer surface of said front waist region to connect said front and rear waist regions with each other; and at least one of said front and rear waist regions and said crotch region being provided along a transverse middle thereof with a pad seat formed by a cavity defined in a middle zone of said core and portions of said topsheet and backsheet located in said cavity, said pad seat including a pair of first extensions wherein a rear end of said pad seat lying on a side of said rear waist region is bifurcated into said first extensions which extend toward said tape fasteners.