The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 16, 2025
Filed:
Dec. 16, 2022
Canon Kabushiki Kaisha, Tokyo, JP;
Takeho Miyashita, Kanagawa, JP;
Chiaki Muraoka, Saitama, JP;
Kyosuke Toda, Kanagawa, JP;
Shimpei Yoshikawa, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A liquid ejection head and liquid ejection apparatus, which are capable of preventing deterioration in ink circulation efficiency in the vicinities of ejection ports, includes a common supply channel and a common collection channel as separate channels. Ink supplied from the common supply channel is supplied to pressure chambers through supply connection channels, and collected from the pressure chambers into the common collection channel through collection connection channels. Also, the common supply channel and the common collection channel extend in a direction crossing a main scanning direction in which the liquid ejection head is scanned and the ejection direction of the liquid.