US Patent Issued to Seiko Epson on Nov. 11 for "Liquid ejecting head, liquid ejecting apparatus, and piezoelectric device" (Japanese Inventors)

ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,466,184, issued on Nov. 11, was assigned to Seiko Epson Corp. (Tokyo).

"Liquid ejecting head, liquid ejecting apparatus, and piezoelectric device" was invented by Yasushi Yamazaki (Azumino, Japan), Masaki Mori (Shiojiri, Japan) and Eiju Hirai (Azumino, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The vibration plate, the first electrode, the piezoelectric layer, and the second electrode are stacked in this order from the pressure chamber plate side in an active area facing the pressure chamber. An area located outwardly from the active area in a longitudinal direction of the pressure chamber includes a first area in which the piezoelectric layer...