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:
Aug. 30, 2022
Filed:
Mar. 20, 2020
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Tsukasa Ota, Yamanashi, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D04H 1/60 (2006.01); B27N 3/04 (2006.01); D04H 1/425 (2012.01); D21F 9/00 (2006.01); B27N 3/18 (2006.01);
U.S. Cl.
CPC ...
D04H 1/60 (2013.01); B27N 3/04 (2013.01); B27N 3/18 (2013.01); D04H 1/425 (2013.01); D21F 9/00 (2013.01);
Abstract
A web structural body includes cellulose fibers and a binding material binding the cellulose fibers, and in the web structural body described above, a molten rate of the binding material at a surface of the web structural body is higher than a molten rate of the binding material at a center in a thickness direction of the web structural body.