ALEXANDRIA, Va., June 16 -- United States Patent no. 12,304,852, issued on May 20, was assigned to NIPPON ELECTRIC GLASS Co. LTD. (Shiga, Japan).
"Glass article and manufacturing method therefor" was invented by Kazuyoshi Nakajima (Shiga, Japan) and Hirokazu Tanaka (Shiga, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a method of manufacturing a glass article, including: a preparation step of preparing a glass preform (1) including a first thin-walled portion (1a) and a first thick-walled portion (1b) at different positions in a width direction; a forming step of drawing the glass preform (1) downward while heating the glass preform (1) through use of a redraw method, to thereby form a gla...