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 10806642 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 20, 2020

Filed:

Aug. 20, 2015
Applicant:

Daio Paper Corporation, Ehime, JP;

Inventors:

Junta Tagomori, Tochigi, JP;

Yasushi Otani, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F 13/15 (2006.01); A61F 13/20 (2006.01); A61F 13/533 (2006.01); A61F 13/511 (2006.01); A61F 13/472 (2006.01); A61F 13/475 (2006.01); A61F 13/536 (2006.01); A61F 13/551 (2006.01); A61F 13/56 (2006.01); A61F 13/51 (2006.01); A61F 13/45 (2006.01); A61F 13/53 (2006.01);
U.S. Cl.
CPC ...
A61F 13/533 (2013.01); A61F 13/15707 (2013.01); A61F 13/4753 (2013.01); A61F 13/4756 (2013.01); A61F 13/47272 (2013.01); A61F 13/51108 (2013.01); A61F 13/536 (2013.01); A61F 13/5514 (2013.01); A61F 13/5611 (2013.01); A61F 2013/16 (2013.01); A61F 2013/4587 (2013.01); A61F 2013/51078 (2013.01); A61F 2013/530007 (2013.01); A61F 2013/530481 (2013.01);
Abstract

A absorbent article has a concave groove that satisfies (1) a relationship between a depth 'h' of a bottom surface portion of the concave groove, and a distance 'S' from a bottom end “G” of the concave groove to an upper end “K” from which a concavity of the concave groove starts is 1.5h<S, (2) a relationship between a width “b” of a bottom surface of the concave groove, and a width “B” of a liquid collection area expressed by a distance between the upper ends “K” and “K” at both sides of the concave groove is B≥3b, and (3) a relationship between a dimension “a” of a square concave groove expressed by a product of the width “b” of the bottom surface and the depth “h” of the bottom surface, and a cross-sectional dimension “A” of the concave groove is A≥2a.


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