Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Takako Tojyo0
Takashi Murata0
Kosuke Kawamoto0
Date of Patent
January 8, 2019
Patent Application Number
15234491
Date Filed
August 11, 2016
Patent Citations Received
Patent Primary Examiner
Patent abstract
A tempered glass has a compressive stress layer in a surface thereof, includes as a glass composition, in terms of mass %, 50 to 80% of SiO2, 10 to 30% of Al2O3, 0 to 6% of B2O3, 0 to 2% of Li2O, and 5 to 25% of Na2O, and is substantially free of As2O3, Sb2O3, PbO, and F.
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