ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,500,263, issued on Dec. 16, was assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT Co. LTD. (Osaka, Japan).

"Method for producing oxyhalide" was invented by Yoshiaki Tanaka (Kyoto, Japan), Tetsuya Asano (Nara, Japan) and Akihiro Sakai (Nara, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A producing method according to the present disclosure includes heat-treating a material mixture at higher than or equal to 150deg C. and lower than or equal to 450deg C., wherein the material mixture contains MX5 and at least one selected from the group consisting of Li2O2, Li2O, and LiOH, M is at least one selected from the group consisting of Ta and Nb, and...