ALEXANDRIA, Va., June 16 -- United States Patent no. 12,304,206, issued on May 20, was assigned to RICOH COMPANY LTD. (Tokyo).
"Liquid discharge head and liquid discharge apparatus" was invented by Isamu Kubo (Kanagawa, Japan) and Keitaroh Sakai (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid discharge head includes a nozzle plate having a nozzle from which a liquid is discharged, a housing holding the nozzle plate, a valve that opens and closes the nozzle, an expandable driver disposed inside the housing, and a restraint. The expandable driver has a first end that supports a rear end of the valve and a second end fixed to the housing. The expendable driver moves the valve in a longi...