ALEXANDRIA, Va., July 15 -- United States Patent no. 12,662,415, issued on June 23, was assigned to Nippon Sheet Glass Co. Ltd. (Tokyo).

"Glass filler and method for producing the same, and resin-containing composition including glass filler" was invented by Hidetoshi Fukuchi (Mie, Japan) and Tomohiro Yagyu (Mie, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a novel glass filler having a low permittivity. The glass filler provided includes a glass composition, wherein the glass composition includes, in wt %: 95less than equal toSiO2less than equal to99.5; 0less than equal toB2O3less than equal to2; 0.01less than equal toAl2O3less than equal to4; 0less than equal toR2Oless than equal to4; 0...