ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,703,182, issued on Aug. 11, was assigned to RISO Technologies Corp. (Tokyo).
"Liquid ejection head" was invented by Akio Hamada (Sunto Shizuoka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "According to an embodiment, a liquid ejection head includes a vibration plate, a nozzle plate with nozzles, a plurality of pressure chambers between the vibration plate and the nozzle plate, and a piezoelectric member on a side of the vibration plate opposite of the pressure chambers. The piezoelectric member includes drive elements in a first area opposed to the pressure chambers via the vibration plate and configured to selectively vibrate the vibration pla...