US Patent Issued to Canon on April 29 for "Liquid ejection head and liquid ejection apparatus" (Japanese Inventors)

ALEXANDRIA, Va., June 9 -- United States Patent no. 12,285,955, issued on April 29, was assigned to Canon K.K. (Tokyo).

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

According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid ejection head and a liquid ejection apparatus suppressing the occurrence of an ejection failure without increasing the size of the apparatus are provided. To this end, between a circulation unit and a supply flow path communicating with a pressure chamber, a flow path is provided, having a vertic...