ALEXANDRIA, Va., June 16 -- United States Patent no. 12,660,402, issued on June 16, was assigned to DONGWOO FINE-CHEM Co. LTD. (Iksan-si, South Korea).
"LED lighting device and method for manufacturing the same" was invented by Byoungin Kim (Seoul, South Korea), Dong Ki Keum (Seoul, South Korea) and Jin Lee (Pyeongtaek-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for manufacturing an LED lighting device includes forming a separation film on a substrate, patterning the separation film, forming LEDs on the separation film, bonding a stretch film to top surfaces of the LEDs and spacing between the LEDs, separating the separation film from the substrate, stretching the stretch film, ex...