US Patent 7520874 Disposable diaper with improved leak prevention properties
Patent 7520874 was granted and assigned to Kao Corporation on April, 2009 by the United States Patent and Trademark Office.
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A disposable diaper comprising a fluid-permeable topsheet, a fluid-impermeable backsheet and a fluid-retentive absorbent core interposed between the topsheet and the backsheet, the disposable diaper being formed in a substantially vertically elongated configuration and having a stomach side, a back side and a crotch region positioned between the stomach side and the back side, wherein a second absorbent core is disposed at an outside region of each opposite side edge of the absorbent core at the crotch region along a longitudinal direction of the diaper, and an elastic member is disposed at the region where the second absorbent core is disposed along a longitudinal direction of the diaper.
US Patent 07520874 Disposable diaper with improved leak prevention properties US Patent 7520874 Disposable diaper with improved leak prevention properties
US Patent 07520874 Disposable diaper with improved leak prevention properties
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