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:
Jun. 30, 2015
Filed:
Sep. 10, 2009
Shinichi Ishikawa, Kagawa, JP;
Taishi Nakamura, Kagawa, JP;
Shinichi Ishikawa, Kagawa, JP;
Taishi Nakamura, Kagawa, JP;
UNICHARM CORPORATION, Ehime, JP;
Abstract
A method of producing a composite sheet includes joining a first sheet in which stretchability in a longitudinal direction of the first sheet is developed by being subjected to a drawing process in the longitudinal direction and a second sheet having stretchability in a longitudinal direction of the second sheet that is lower than the stretchability of the first sheet. The longitudinal directions are aligned with each other. The first sheet is extended in the longitudinal direction, while transporting the first sheet in the longitudinal direction with the first sheet being in contact with an upstream roll and a downstream roll that rotate adjacent to each other. The second sheet is joined to a portion of the first sheet in an overlapped manner, the portion being in contact with the downstream roll in the extended state.