ALEXANDRIA, Va., June 10 -- United States Patent no. 12,291,036, issued on May 6, was assigned to Canon K.K. (Tokyo).
"Liquid ejection head and liquid ejection apparatus" was invented by Tomoki Tsuji (Kanagawa, Japan) and Yumi Komamiya (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid ejection head and liquid ejection apparatus are capable of suppressing deterioration in image quality without adding a member for heat radiation. In the liquid ejection head that ejects a circulating liquid, an engagement part formed on the discharge port side has an elongated hole shape extending in a direction so as to support a liquid ejection unit support member in such a manner as to allow thermal de...