US Patent Issued to Canon on June 23 for "Liquid ejection head and liquid ejection apparatus" (Japanese Inventors)

ALEXANDRIA, Va., July 15 -- United States Patent no. 12,661,902, issued on June 23, was assigned to Canon K.K. (Tokyo).

"Liquid ejection head and liquid ejection apparatus" was invented by Yosuke Takagi (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 head and liquid ejection apparatus capable of preventing a deterioration in ink circulation efficiency in the vicinities of ejection ports and an increase in apparatus size include a common supply channel and a common collection channel as separate channels. Ink supplied from the common sup...