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.

Date of Patent:
Jan. 19, 2021

Filed:

Aug. 04, 2016
Applicant:

Daio Paper Corporation, Shikokuchuo, JP;

Inventors:

Sadanao Manabe, Tokyo, JP;

Akifumi Hayashi, Tokyo, JP;

Kosuke Murai, Ehime, JP;

Shuichi Ito, Tokyo, JP;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61F 13/496 (2006.01); A61F 13/15 (2006.01); A61F 13/515 (2006.01); B29C 65/08 (2006.01); B29C 65/48 (2006.01); B29C 65/00 (2006.01); A61F 13/42 (2006.01); A61F 13/494 (2006.01); B29K 623/00 (2006.01); B29L 31/48 (2006.01);
U.S. Cl.
CPC ...
A61F 13/4963 (2013.01); A61F 13/15723 (2013.01); A61F 13/15739 (2013.01); A61F 13/496 (2013.01); A61F 13/515 (2013.01); B29C 65/08 (2013.01); B29C 65/4815 (2013.01); B29C 66/43 (2013.01); A61F 13/42 (2013.01); A61F 13/49413 (2013.01); A61F 2013/422 (2013.01); B29K 2623/12 (2013.01); B29K 2713/00 (2013.01); B29L 2031/4878 (2013.01);
Abstract

An underpants-type disposable diaper includes outer membersF andB having stretchable regions Aand Adisposed adjacent to the inner edges of the side seal portionsA in the width direction. The stretchable regions Aand Ainclude multiple elongated elastically stretchable membersdisposed between two sheet layersS andH at predetermined intervals in the front-back direction and extending in the width direction. The elastically stretchable memberseach include two fixed endsfixed to the two sheet layersS andH, and the section between the fixed endsis unfixed to the two sheet layersS andH. The two sheet layersS andH are welded into sheet bonding sections, at positions between the elastically stretchable membersin the stretchable regions Aand Aadjacent is the front-back direction. No sheet bonding section protrudes from the side seal portion in the stretchable regions Aand A


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