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:
Jan. 21, 2020
Filed:
Jun. 29, 2018
Canon Kabushiki Kaisha, Tokyo, JP;
Koichi Kubo, Yokohama, JP;
Naozumi Nabeshima, Tokyo, JP;
Soji Kondo, Yokohama, JP;
Kazuya Yoshii, Yokohama, JP;
Noriyasu Nagai, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A liquid ejection head includes a pressure adjusting mechanism that communicates with a supply flow path that supplies a liquid to an element substrate including an ejection port ejecting a liquid, and adjusts a pressure of the liquid flowing in the supply flow path, a pressure adjusting mechanism that communicates with a collection flow path that collects a liquid from the element substrate, and adjusts a pressure of the liquid flowing in the collection flow path, and a filter storage chamber including therein a filter that captures foreign matter in the liquid. Further, the liquid ejection head includes upstream flow paths and a connection section that causes the upstream flow paths to communicate with each other, and is provided downstream of the filter.