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. 29, 2019
Filed:
Feb. 28, 2017
Nippon Electric Glass Co., Ltd., Shiga, JP;
Kaoru Mitsugi, Shiga, JP;
Hiromichi Umemura, Shiga, JP;
Michiharu Eta, Shiga, JP;
Yasuo Teranishi, Shiga, JP;
Yoshinori Hasegawa, Shiga, JP;
Koichi Mori, Shiga, JP;
Hiroki Mori, Shiga, JP;
NIPPON ELECTRIC GLASS CO., LTD, Shiga, JP;
Abstract
A method of manufacturing a glass roll, includes: a forming step (S) of forming, while conveying a glass film, the glass film by a downdraw method; a temporary rolling step (S) of rolling the glass film while superposing a protective film on the glass film at a downstream end of a path of the conveying in the forming step (S), to thereby manufacture a source glass roll; and a main rolling step (S) of unrolling, while conveying the glass film to a downstream side, the glass film from the source glass roll, and then rerolling the glass film while superposing a protective film on the glass film at a downstream end of a path of the conveying, to thereby manufacture a glass roll. Higher tension in a rolling direction is applied to the glass film in the main rolling step (S) than in the temporary rolling step (S).