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:
Mar. 20, 2018
Filed:
Dec. 18, 2013
Applicant:
Nippon Electric Glass Co., Ltd., Shiga, JP;
Inventors:
Kosuke Kawamoto, Shiga, JP;
Ken Choju, Shiga, JP;
Assignee:
NIPPON ELECTRIC GLASS CO., LTD., Shiga, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 15/04 (2006.01); B32B 17/06 (2006.01); C03C 3/083 (2006.01); G06F 3/041 (2006.01); A61J 1/00 (2006.01); H01L 31/02 (2006.01); H04B 1/3888 (2015.01); C03C 4/18 (2006.01); C03C 3/091 (2006.01); C03C 21/00 (2006.01); A61J 1/06 (2006.01);
U.S. Cl.
CPC ...
C03C 3/083 (2013.01); A61J 1/00 (2013.01); C03C 3/091 (2013.01); C03C 4/18 (2013.01); C03C 21/002 (2013.01); G06F 3/041 (2013.01); H01L 31/02 (2013.01); H04B 1/3888 (2013.01); A61J 1/065 (2013.01); C03C 2204/00 (2013.01); Y10T 428/13 (2015.01); Y10T 428/315 (2015.01);
Abstract
To devise a tempered glass and a glass to be tempered each of which is lowered in density and viscosity at high temperature, hardly deteriorates a KNOmolten salt, and is excellent in thermal shock resistance. The tempered glass having a compression stress layer in a surface thereof, including as a glass composition, in terms of mol %, 50 to 80% of SiO, 5 to 30% of AlO, 0 to 2% of LiO, 5 to 25% of NaO, and 0 to 5% of KO, and being substantially free of AsO, SbO, PbO, and F.