ALEXANDRIA, Va., March 26 -- United States Patent no. 12,257,833, issued on March 25, was assigned to Ricoh Co. Ltd. (Tokyo).
"Liquid discharge apparatus, head drive controller, and liquid discharge method" was invented by Satomi Araki (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid discharge apparatus includes: a liquid discharge head configured to discharge a liquid from a nozzle, the liquid discharge head including: a liquid chamber communicating with the nozzle; a pressure generator configured to deform the liquid chamber to apply pressure to the liquid in the liquid chamber; and circuitry configured to apply a drive signal to the pressure generator to drive the pressure generato...