US Patent Issued to Canon on Aug. 11 for "Liquid ejection head" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,703,186, issued on Aug. 11, was assigned to Canon K.K. (Tokyo).

"Liquid ejection head" was invented by Shin Ishimatsu (Kanagawa, Japan), Takatsugu Moriya (Tokyo), Koichi Ishida (Tokyo), Keiji Tomizawa (Kanagawa, Japan), Yoshihiro Hamada (Kanagawa, Japan), Fumi Tanaka (Kanagawa, Japan), So Aizawa (Kanagawa, Japan) and Kyosuke Toda (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid ejection head includes ejection nozzles, pressure compartments, a supply port, and first pillar structures. The pressure compartments which each communicate with a corresponding ejection nozzle of the ejection nozzles and are each combined with an energy g...