US Patent Issued to CANON on March 11 for "Liquid ejection head substrate, liquid ejection head, and liquid ejection apparatus" (Japanese Inventors)

ALEXANDRIA, Va., March 12 -- United States Patent no. 12,246,536, issued on March 11, was assigned to CANON K.K. (Tokyo).

"Liquid ejection head substrate, liquid ejection head, and liquid ejection apparatus" was invented by Yasuo Fujii (Kanagawa, Japan), Yasuhiro Soeda (Kanagawa, Japan) and Yosuke Miura (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a technique that enables voltages to be applied, with high precision, to an electrode layer for inhibition and removal of koge while suppressing increase in the size a substrate. A liquid ejection head substrate includes: electrothermal conversion elements that apply heat to a liquid; an upper electrode part in which a plurality of upper electr...