Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
May 1, 2012
Patent Application Number
13224796
Date Filed
September 2, 2011
Patent Citations Received
Patent Primary Examiner
Patent abstract
A tempered glass substrate of the present invention is a tempered glass substrate, which has a compression stress layer on a surface thereof, and has a glass composition comprising, in terms of mass %, 40 to 71% of SiO2, 3 to 21% of Al2O3, 0 to 3.5% of Li2O, 7 to 20% of Na2O, and 0 to 15% of K2O.
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