US Patent Issued to GC on May 26 for "Method of producing glass-ceramic blank, and glass-ceramic blank" (Japanese Inventors)

ALEXANDRIA, Va., May 26 -- United States Patent no. 12,637,383, issued on May 26, was assigned to GC Corp. (Sunto-gun, Japan).

"Method of producing glass-ceramic blank, and glass-ceramic blank" was invented by Kenji Kojima (Itabashi-ku, Japan) and Koji Yamamoto (Itabashi-ku, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a method of producing a glass-ceramic blank including: preparing plural glass-ceramic powders, laminating the glass-ceramic powders, so that colors of any adjacent layers of the powders are the same as or approximate to each other, and so that said any adjacent layers are different in total light transmittance, and pressure-molding the laminated powders; heating, at 500deg ...