ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,752,531, issued on Oct. 6, was assigned to RICOH COMPANY LTD. (Tokyo).
"Liquid discharge head and liquid discharge apparatus" was invented by Ryohta Matsufuji (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid discharge head includes a nozzle member having a nozzle, a valve to open and close the nozzle, a driver to drive the valve, a diaphragm between the valve and the driver, and a housing. The diaphragm vibrates in response to driving of the driver. The housing holds the nozzle member, the valve, the driver, and the diaphragm. The diaphragm has a thin film portion that is not held by the housing, and the thin film portion is thinn...