ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,528,290, issued on Jan. 20, was assigned to Canon K.K. (Tokyo).
"Recording element substrate and recording device" was invented by Hiroyasu Nomura (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A recording element substrate includes a plurality of discharging ports; a plurality of nozzles connected to the plurality of discharging ports, respectively; a passage forming portion in which a plurality of individual passages connected to the plurality of nozzles, respectively, and a common passage connected to the plurality of individual passages are formed; a plurality of supply ports disposed at positions corresponding to a plurality of nozzle groups...