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:
Nov. 23, 2021
Filed:
Jan. 29, 2020
Canon Kabushiki Kaisha, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A liquid ejecting head includes, on an element substrate, an ejection orifice line formed of a plurality of ejection orifices, a plurality of pressure chambers that communicates with the ejection orifices, respectively, a first flow passage and a second flow passage that extend along the ejection orifice line and communicate with the plurality of pressure chambers, respectively, and a plurality of first openings that communicates with the first flow passage and a plurality of second openings that communicates with the second flow passage. The number of the first openings and the number of the second openings are equal to each other and even numbers. Out of the plurality of first openings and the plurality of second openings, openings positioned at both ends in an ejection orifice line direction are either the first openings or the second openings.