ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,454,129, issued on Oct. 28, was assigned to Canon K.K. (Tokyo).
"Liquid ejection head" was invented by Takashi Kato (Kanagawa, Japan) and Yoshiyuki Nakagawa (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "In a liquid ejection head capable of suppressing a decrease in printing quality, circulation efficiency J at an ejection orifice on a downstream side in a flow direction in a channel is set high."
The patent was filed on Aug. 18, 2023, under Application No. 18/235,608.
*For further information, including images, charts and tables, please visit: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2...