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:
Mar. 24, 2026
Filed:
Dec. 27, 2023
Canon Kabushiki Kaisha, Tokyo, JP;
Yasuhiko Osaki, Kanagawa, JP;
Shuzo Iwanaga, Kanagawa, JP;
Tatsurou Mori, Tokyo, JP;
Hiromasa Amma, Kanagawa, JP;
Shingo Okushima, Kanagawa, JP;
Satoshi Kimura, Kanagawa, JP;
Yuhei Oikawa, Kanagawa, JP;
Takatoshi Nakano, Kanagawa, JP;
Koichi Ishida, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A liquid ejection head includes a printing element board having an ejection surface in which an ejection orifice array is formed to eject liquid; and a protective member having an opening corresponding to the ejection orifice array, wherein the shape of the opening is an elongate shape having a longitudinal direction and a transverse direction in the case of viewing from the ejection surface, the opening has a first side surface parallel to the longitudinal direction and a second side surface parallel to the transverse direction, and the protective member is fixed to the ejection surface such that the first side surface has an inclination angle with the ejection surface.