ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,558,889, issued on Feb. 24, was assigned to RICOH COMPANY LTD. (Tokyo).

"Liquid discharge head, head module, head unit, and liquid discharge apparatus" was invented by Takuma Hirabayashi (Tokyo) and Toshiaki Masuda (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid discharge head includes: a nozzle through which a liquid is to be discharged; an individual chamber in communication with the nozzle; a pressure generator to generate pressure in the individual chamber; and a damper member including: a damper having flexibility; and a damper frame supporting the damper, the damper frame having: a damper region having a cavity facing the ...