US Patent Issued to RICOH on July 28 for "Liquid discharge head, liquid discharge unit, and liquid discharge apparatus" (Japanese Inventors)

ALEXANDRIA, Va., July 28 -- United States Patent no. 12,691,684, issued on July 28, was assigned to RICOH COMPANY LTD. (Tokyo).

"Liquid discharge head, liquid discharge unit, and liquid discharge apparatus" was invented by Chikako Hatta (Kanagawa, Japan) and Kohta Akiyama (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid discharge head includes a nozzle plate and a channel substrate. The nozzle plate has a nozzle from which a liquid is dischargeable in a first direction. The channel substrate is laminated over the nozzle plate. The channel substrate has a pressure chamber, an individual supply chamber having a first height h1, and a fluid restrictor. The liquid flows from the individua...