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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.:

US 11073715 B1

PDFFull Text
Date of Patent:
Jul. 27, 2021

Filed:

Sep. 25, 2017

Method for producing glass article, and glass article

Applicant:

Agc Inc., Chiyoda-ku, JP;

Inventors:

Takanori Fukushi, Tokyo, JP;

Satoshi Kanasugi, Tokyo, JP;

Makoto Fujii, Tokyo, JP;

Toru Ikeda, Tokyo, JP;

Assignee:

AGC Inc., Chiyoda-ku, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Anthony J Frost

Int. Cl.
CPC ...
G02F 1/1335 (2006.01); G02B 5/02 (2006.01); G02B 1/115 (2015.01); C03B 23/025 (2006.01); C03C 17/00 (2006.01); C03C 21/00 (2006.01); C03C 17/25 (2006.01); C03B 25/02 (2006.01); C03C 3/085 (2006.01); C03B 40/00 (2006.01); C03B 23/035 (2006.01); C03C 3/087 (2006.01); C03C 15/00 (2006.01); C03B 23/03 (2006.01); C03B 29/02 (2006.01); G02F 1/1333 (2006.01);
U.S. Cl.
CPC ...
G02F 1/133502 (2013.01); C03B 23/025 (2013.01); C03B 23/0258 (2013.01); C03B 23/0307 (2013.01); C03B 23/0357 (2013.01); C03B 25/025 (2013.01); C03B 40/00 (2013.01); C03C 3/085 (2013.01); C03C 3/087 (2013.01); C03C 15/00 (2013.01); C03C 17/007 (2013.01); C03C 17/25 (2013.01); C03C 21/002 (2013.01); G02B 1/115 (2013.01); G02B 5/0221 (2013.01); C03B 29/025 (2013.01); C03C 2217/213 (2013.01); C03C 2217/445 (2013.01); C03C 2218/34 (2013.01); G02F 1/133331 (2021.01); Y02P 40/57 (2015.11);
Abstract

A method for producing a glass article from a glass member including a glass substrate including a first main surface, a second main surface and an end face, and an irregular layer formed in at least one of main surfaces, includes forming an irregular layer having a glass transition point Tg which is equal to or lower than a glass transition point in a central part of the glass member in a thickness-direction sectional view and performing a heat treatment on the glass member so as to have an equilibrium viscosity in the central part of the glass member in thickness-direction sectional view of 10Pa·s or lower.

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