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:
Sep. 29, 2026
Filed:
Feb. 20, 2023
Applicant:
Agc Inc., Tokyo, JP;
Inventors:
Hiroshi Komatsu, Tokyo, JP;
Takanori Fukushi, Tokyo, JP;
Satoshi Kanasugi, Tokyo, JP;
Hitomi Furuta, Tokyo, JP;
Shiro Funatsu, Tokyo, JP;
Assignee:
AGC Inc., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C03C 10/00 (2006.01); C03B 23/03 (2006.01); C03C 21/00 (2006.01); C03B 32/02 (2006.01);
U.S. Cl.
CPC ...
C03B 23/03 (2013.01); C03C 10/00 (2013.01); C03C 21/002 (2013.01); C03B 32/02 (2013.01); C03C 2204/00 (2013.01);
Abstract
The present invention relates to a glass in which: the glass is a crystallized glass; the glass has a difference log η−log η(dPa·s) between a logarithm log η (dPa·s) of bulk viscosity η (dPa·s) and a logarithm log η(dPa·s) of local viscosity η(dPa·s) of larger than 0 and 1.8 or smaller, in a temperature range in which the logarithm log η(dPa·s) of the bulk viscosity η (dPa·s) is 11.4 or larger and 12.7 or smaller.