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:
Sep. 12, 2023
Filed:
Mar. 29, 2022
Seiko Epson Corporation, Tokyo, JP;
Masahide Nakamura, Nagano, JP;
Yoshiyuki Nagai, Nagano, JP;
Hideki Tanaka, Nagano, JP;
Naoko Omagari, Nagano, JP;
Yoko Nakai, Nagano, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A sheet manufacturing method includes forming a web by accumulating a mixture containing a fiber and a water-soluble polysaccharide in a dry manner, a moisture imparting step of imparting the web with moisture, and a pressurizing and heating step of pressurizing and heating the web to which the moisture is imparted, in which the pressurizing and heating step performs pressurizing and heating at the same time, a pressure higher than a pressure applied to the web in the pressurizing and heating step is not applied to the web before the pressurizing and heating step, and heating to a temperature higher than a temperature for heating the web in the pressurizing and heating step is not performed before the pressurizing and heating step.