US Patent Issued to Canon on Sept. 16 for "Liquid ejection head and liquid ejection apparatus" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,415,365, issued on Sept. 16, was assigned to Canon K.K. (Tokyo).

"Liquid ejection head and liquid ejection apparatus" was invented by Yasuaki Kitayama (Kanagawa, Japan), Chiaki Muraoka (Saitama, Japan), Kyosuke Toda (Kanagawa, Japan), Takeho Miyashita (Kanagawa, Japan) and Shimpei Yoshikawa (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid ejection apparatus includes a printing element board, supply and collection flow passages, a liquid feeding mechanism, and first and second bubble reservoir units. The printing element board includes a pressure chamber having an ejection port from which the printing element board ejects a liqui...