ALEXANDRIA, Va., Feb. 12 -- United States Patent no. 12,220,916, issued on Feb. 11, was assigned to Seiko Epson Corp. (Tokyo).
"Liquid discharge apparatus" was invented by Masanori Mikoshiba (Shimosuwa-machi, Japan), Motoki Takabe (Shiojiri, Japan), Takanori Aimono (Matsumoto, Japan) and Jingling Wang (Shiojiri, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid discharge apparatus includes a pressure chamber substrate laminated on a first surface of a diaphragm and including a partition wall partitioning a pressure chamber communicating with a nozzle for discharging liquid, a piezoelectric element laminated on a second surface of the diaphragm and including a first active portion that overlaps a ...