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:
Oct. 20, 2015
Filed:
Mar. 28, 2014
Canon Kabushiki Kaisha, Tokyo, JP;
Masataka Nagai, Yokohama, JP;
Yoshinori Tagawa, Yokohama, JP;
Jun Yamamuro, Yokohama, JP;
Kenji Fujii, Yokohama, JP;
Mitsuru Chida, Yokohama, JP;
Makoto Watanabe, Yokohama, JP;
Toshiaki Kurosu, Oita, JP;
Takanobu Manabe, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A liquid ejection head includes a substrate which has an energy-generating element that generates energy to be utilized for ejecting a liquid, and a supply orifice for supplying the liquid to the energy-generating element; and an ejection orifice forming member that has a plurality of ejection orifices through which the liquid is ejected, and at least one beam-like projection which projects toward the substrate and extends along an array direction of the ejection orifices at a position corresponding to the supply orifice. A sectional area perpendicular to the array direction of the ejection orifices at the central part of the beam-like projection in the array direction of the ejection orifices is larger than a sectional area in the direction perpendicular to the array direction of the ejection orifices at both ends of the beam-like projection in the array direction.