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.

Date of Patent:
Dec. 06, 2022

Filed:

Jun. 11, 2019
Applicant:

Nippon Electric Glass Co., Ltd., Shiga, JP;

Inventors:

Hiroshi Takimoto, Shiga, JP;

Taisei Matsubushi, Shiga, JP;

Masao Nakajima, Shiga, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03B 33/033 (2006.01); B28D 1/22 (2006.01); B28D 7/04 (2006.01); C03B 33/04 (2006.01);
U.S. Cl.
CPC ...
C03B 33/033 (2013.01); B28D 1/225 (2013.01); B28D 7/04 (2013.01); C03B 33/04 (2013.01);
Abstract

A method of manufacturing a glass sheet includes a start point forming step of forming a scribe line on a preset cutting portion of a glass sheet, a setting step of causing, through use of a support member having a groove-shaped recess, the support member to support the glass sheet having the scribe line formed thereon from one surface side so that the preset cutting portion is arranged on the recess, and a cutting step of generating a negative pressure in the recess to bend the preset cutting portion on the recess so that the one surface side protrudes, to thereby cut the glass sheet along the preset cutting portion with the scribe line as the start point. At the time of performing the cutting step, the entire recess is covered with a cover member from another surface side of the glass sheet through intermediation of the glass sheet.


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