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.:

US 8524355 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 03, 2013

Filed:

May. 10, 2004
Applicant:

Kenji Nakaoka, Tsurugi-cho, JP;

Inventor:

Kenji Nakaoka, Tsurugi-cho, JP;

Assignee:

Livedo Corporation, Ehime, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B32B 27/12 (2006.01);
U.S. Cl.
CPC ...
Abstract

A disposable absorbent article includes an absorbent mat provided between a liquid-permeable top sheet and a liquid-impermeable back sheet. Herein, the absorbent mat includes a sheet-like water-absorbent layer that contains a water-absorbent resin powder but that does not contain pulp fibers, and a fiber assembly layer that contains both the water-absorbent resin powder and the pulp fibers, the sheet-like water-absorbent layer and the fiber assembly layer arranged sequentially in this order from a top sheet side. The fiber assembly layer includes a fiber presence region in which both the pulp fibers and the water-absorbent resin powder are present, and a fiber absence region in which both the pulp fibers and the water-absorbent resin powder are absent, the fiber presence region and the fiber absence region formed to be adjacent with each other.


Find Patent Forward Citations

Nakaoka, Kenji. (2013). Disposable absorbent article (U.S. Patent No. 8524355). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8524355

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