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:
May. 05, 2026
Filed:
Dec. 14, 2023
Canon Kabushiki Kaisha, Tokyo, JP;
Tomoki Tsuji, Kanagawa, JP;
Shuzo Iwanaga, Kanagawa, JP;
Hiromasa Amma, Kanagawa, JP;
Shingo Okushima, Kanagawa, JP;
Tatsurou Mori, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The liquid ejection head including a first liquid ejection module and a second liquid ejection module, each including a printing element substrate having an ejection surface on which a plurality of ejection port rows ejecting liquid is formed and a protection member having an opening corresponding to the ejection port row, and the ejection surface and the protection member are bonded to each other with a bonding adhesive, a space between the first liquid ejection module and the second liquid ejection module is sealed with a sealing member, and on a surface on the opposite side of a surface bonded to the ejection surface with the bonding adhesive, at least one side of the protection member, which is in close proximity to the sealing member, is made water repellent.