US Patent Issued to CANON on Nov. 3 for "Liquid ejection head and method of manufacturing liquid ejection head" (Japanese Inventors)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,787,652, issued on Nov. 3, was assigned to CANON K.K. (Tokyo).

"Liquid ejection head and method of manufacturing liquid ejection head" was invented by Toshifumi Yoshioka (Kanagawa, Japan), Rei Kurashima (Kanagawa, Japan) and Takahiro Matsui (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid ejection head includes an ejection element substrate having a substrate, a vibration plate provided at the substrate, a piezoelectric element having a first electrode, a piezoelectric layer, and a second electrode in this order on a surface of the vibration plate opposite from the substrate, a first wiring electrically connected to the first elec...