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:
Jan. 12, 2021
Filed:
Apr. 21, 2017
Nippon Electric Glass Co., Ltd., Shiga, JP;
Naohiro Ikai, Shiga, JP;
Kaoru Mitsugi, Shiga, JP;
Shuji Akiyama, Shiga, JP;
Hiroki Mori, Shiga, JP;
Koichi Mori, Shiga, JP;
Yasuhiro Uemura, Shiga, JP;
NIPPON ELECTRIC GLASS CO., LTD., Shiga, JP;
Abstract
Provided is method of producing a glass roll, the method including: a conveying step of conveying a glass film (G) along a longitudinal direction thereof; a cutting step of irradiating the glass film (G) with a laser beam (L) from a laser irradiation apparatus () while conveying the glass film (G) by the conveying step, to thereby separate the glass film (G) into a non-product portion (Gc) and a product portion (Gd); and a take-up step of taking up the product portion (Gd) into a roll shape, to thereby form a glass roll (R). The cutting step includes winding a thread-like peeled material (Ge) generated from an end portion of the product portion (Gd) in a width direction around a rod-shaped collecting member (), to thereby collect the thread-like peeled material (Ge).