US Patent Issued to AGC on Oct. 28 for "Crystallized glass, chemically strengthened glass, and production method therefor" (Japanese Inventors)

ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,454,480, issued on Oct. 28, was assigned to AGC Inc. (Tokyo).

"Crystallized glass, chemically strengthened glass, and production method therefor" was invented by Hitomi Furuta (Tokyo), Takanori Fukushi (Tokyo), Qing Li (Tokyo) and Yusuke Arai (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a glass ceramic having a three-dimensional shape including plural R-shapes including a smallest R-shape whose average radius of curvature is 5.0x102 mm or less and a largest R-shape whose average radius of curvature is 1.0x103 mm or more, having a maximum value of retardations of 20 nm/mm or less, and having a haze value converte...