ALEXANDRIA, Va., June 16 -- United States Patent no. 12,654,441, issued on June 16, was assigned to Samsung Display Co. Ltd. (Yongin-si, South Korea).
"Printing device and method for controlling the same" was invented by Gwangteak Lee (Yongin-si, South Korea) and Jonghyeon Choi (Yongin-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A printing device includes: an AC power source configured to generate power having a first frequency; a resonance circuit connected to the AC power source, including at least one inductor and at least one capacitor, and having a resonance frequency that is equal to the first frequency; and a nozzle connected to the resonance circuit and configured to discharge an i...