ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,415,745, issued on Sept. 16, was assigned to AGC INC. (Tokyo).
"Glass, chemically tempered glass, and method for producing same" was invented by Takumi Umada (Tokyo), Kenji Imakita (Tokyo), Yusuke Arai (Tokyo) and Shingo Urata (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a glass including, in mole percentage in terms of oxides: 40-65% of SiO2; 25-40% of Al2O3; and 7-15% of one or more components, in total, selected from Y2O3, La2O3, Nb2O5, Ta2O5, and WO3. Also the present invention relates to a chemically strengthened glass having a base composition including, in mole percentage in terms of oxides: 40-65% of Si...