The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 06, 2012
Filed:
Jun. 22, 2007
Yuki Noda, Kagawa, JP;
Kenichiro Kuroda, Kagawa, JP;
Kumiko Nishikawa, Kagawa, JP;
Satoshi Mizutani, Kagawa, JP;
Hideyuki Ishikawa, Kagawa, JP;
Akihiro Kimura, Kagawa, JP;
Yuki Noda, Kagawa, JP;
Kenichiro Kuroda, Kagawa, JP;
Kumiko Nishikawa, Kagawa, JP;
Satoshi Mizutani, Kagawa, JP;
Hideyuki Ishikawa, Kagawa, JP;
Akihiro Kimura, Kagawa, JP;
Uni-Charm Corporation, Ehime, JP;
Abstract
An absorbent article comprising nonwoven fabric having convex and concave surfaces, and that allows liquid such as excreta and the like to permeate quickly. A sanitary napkin has a plurality of raised ridge portions and groove portions in a top sheet member. The fiber density of the side edge portions of each of the plurality of raised ridge portions in the thickness direction of the nonwoven fabric is substantially uniform, and is higher than the average fiber density in the raised ridge portions. The fiber density of the central portion between both the side edge portions of each of the plurality of raised ridge portions is substantially uniform in the thickness direction of the nonwoven fabric, and is lower than the average fiber density in the raised ridge portions.