ALEXANDRIA, Va., June 18 -- United States Patent no. 12,325,237, issued on June 10, was assigned to RICOH COMPANY LTD. (Tokyo).
"Liquid discharge head and liquid discharge apparatus" was invented by Chikako Hatta (Kanagawa, Japan), Shinichiroh Osanai (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 having multiple nozzle holes from which a liquid is to be discharged in a liquid discharge direction, the multiple nozzle holes arrayed in a nozzle array direction orthogonal to the liquid discharge direction; and a pressure chamber communicating with the multiple nozzle holes, wherein a volume Vmin of a virtual hem...