ALEXANDRIA, Va., May 19 -- United States Patent no. 12,630,659, issued on May 19, was assigned to Toyota Motor Engineering & Manufacturing North America Inc. (Plano, Texas) and Georgia Tech Research Corp. (Atlanta).
"Resins for digital light processing 3D printing" was invented by Yuyang Song (Ann Arbor, Mich.), Masato Tanaka (Ann Arbor, Mich.), Liang Yue (Atlanta) and Hang Qi (Marietta, Ga.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A resin for grayscale digital light processing 3D printing includes a donor moiety, an acceptor moiety, a rigid moiety, a photoinitiator, and a photoabsorber. The donor moiety is an acrylate monomer with a side group of a free carbonyl, a primary amine on an acrylate, a seco...