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. 21, 2023
Filed:
Jun. 22, 2020
Daio Paper Corporation, Ehime, JP;
Syunsuke Sakai, Tochigi, JP;
DAIO PAPER CORPORATION, Ehime, JP;
Abstract
In order to prevent degradation of appearance, prevent a decrease in flexibility, and improve non-elasticity in a non-stretchable region in an elastic film stretchable structure, the invention is characterized by having an elastic film stretchable structure (X) formed by stacking an elastic film () between a first sheet layer (A) and a second sheet layer (B), wherein a region having the elastic film stretchable structure (X) includes a non-stretchable region () and a stretchable region () provided at least at one side of the non-stretchable region () in a stretching and contracting direction, the stretchable region () being stretchable in the stretching and contracting direction, the first sheet layer (A) and the second sheet layer (B) are joined via through holes () penetrating the elastic film () at the large number of sheet bond portions () arranged at intervals, and the non-stretchable region () does not have a section in which the elastic film () linearly continues along the stretching and contracting direction, due to presence of the through holes (), even though the elastic film () continues in the stretching and contracting direction.