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:
Mar. 29, 2016
Filed:
Mar. 02, 2011
Shinichi Ishikawa, Kagawa, JP;
Jun Okuda, Kagawa, JP;
Taishi Nakamura, Kagawa, JP;
Akihisa Shiomi, Kagawa, JP;
Shinichi Ishikawa, Kagawa, JP;
Jun Okuda, Kagawa, JP;
Taishi Nakamura, Kagawa, JP;
Akihisa Shiomi, Kagawa, JP;
UNICHARM CORPORATION, Ehime, JP;
Abstract
In a method of producing a stretchable sheet using a pair of gear rolls each having a plurality of teeth arranged on a circumference thereof, a raw sheet is drawn by passing the raw sheet through a gap between the pair of gear rolls. The raw sheet contains a plurality of types of fibers, and has a plurality of recessed sections formed by pressing. The recessed sections are formed collinearly at least along the drawing direction at a predetermined formation pitch in the drawing direction. An arrangement pitch of the teeth in the drawing direction is greater than the formation pitch and smaller than twice the formation pitch.