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. 11, 2020
Filed:
Nov. 17, 2017
Nakamura Printing & Binding Co., Ltd., Kita-Ku, Tokyo, JP;
Teruo Nakamura, Tokyo, JP;
Nakamura Printing & Binding Co., Ltd., Tokyo, JP;
Abstract
A binding method of a perfect-bound booklet includes the steps of folding each leaf of sheets forming a body to obtain multiple signatures; pressing creased parts of the multiple signatures in a thickness direction thereof; jogging a one-book bundle formed of a predetermined number of signatures forming a body, a front cover, and a back cover, or a multi-book bundle formed by stacking a plurality of one-book bundles on top of one another; applying a first adhesive that remains flexible upon curing, in a layer in a middle area 5 to 10 millimeters from both top and bottom ends of a rear face of the one-book bundle or the multi-book bundle; applying a second adhesive on the entire rear face; and drying and curing the second adhesive for a predetermined drying time.