ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,460,021, issued on Nov. 4, was assigned to GC Corp. (Shizuoka, Japan).
"Glass powder and chemical polymerization initiator" was invented by Keita Sato (Tokyo), Atsushi Fujimi (Tokyo), Shogo Murakami (Tokyo) and Ayaka Fujimoto (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "One aspect of the invention includes a glass powder for a chemical polymerization initiator, the glass powder including aluminum, silicon, and at least one of copper or vanadium."
The patent was filed on Aug. 19, 2020, under Application No. 17/753,565.
*For further information, including images, charts and tables, please visit: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PT...