US Patent Issued to Canon on June 16 for "Liquid ejection head and printing apparatus" (Japanese Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,654,464, issued on June 16, was assigned to Canon K.K. (Tokyo).

"Liquid ejection head and printing apparatus" was invented by Takayuki Nakajima (Kanagawa, Japan), Keisuke Iinuma (Kanagawa, Japan), Tatsuo Nanjo (Kanagawa, Japan) and Wataru Takahashi (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid ejection head can be formed to be thinner than previous designs even in a case where multiple flow channels are arranged. In a state where the liquid ejection head is in use, a first upstream flow channel has a first region located above a first downstream flow channel vertically and a sectional area of the first upstream flow channel de...