US Patent Issued to RICOH on March 17 for "Liquid discharge head, liquid discharge device, and liquid discharge apparatus" (Japanese Inventors)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,576,640, issued on March 17, was assigned to RICOH COMPANY LTD. (Tokyo).

"Liquid discharge head, liquid discharge device, and liquid discharge apparatus" was invented by Yuki Fujimura (Kanagawa, Japan), Keishi Miwa (Kanagawa, Japan) and Toshiaki Masuda (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid discharge head includes: a nozzle plate including a nozzle; a liquid chamber substrate having an individual chamber; a diaphragm; a piezoelectric actuator including a piezoelectric body, a wiring portion covering a first region of the piezoelectric actuator; and a protective film covering a second region of the piezoelectric actuato...