US Patent Issued to NIPPON ELECTRIC GLASS on Oct. 7 for "Method for producing glass article and glass article" (Japanese Inventors)

ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,434,991, issued on Oct. 7, was assigned to NIPPON ELECTRIC GLASS Co. LTD. (Shiga, Japan).

"Method for producing glass article and glass article" was invented by Mutsumu Fukada (Shiga, Japan), Motokazu Ogata (Shiga, Japan) and Mina Mabuchi (Shiga, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of manufacturing a glass article includes a forming step of causing a first molten glass (Gm1) including P2O5 to flow down along a surface of a forming trough (15) including an yttrium-containing oxide by a down-draw method to form a glass ribbon (G), wherein the forming trough (15) includes a Mg-rich layer (MR) serving as a diffusion suppression laye...