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:
Aug. 22, 2017
Filed:
Sep. 12, 2012
Tamaki Sato, Kawasaki, JP;
Masafumi Morisue, Tokyo, JP;
Tetsushi Ishikawa, Tokyo, JP;
Hirono Yoneyama, Chigasaki, JP;
Tamaki Sato, Kawasaki, JP;
Masafumi Morisue, Tokyo, JP;
Tetsushi Ishikawa, Tokyo, JP;
Hirono Yoneyama, Chigasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A manufacturing method of a liquid ejection head, which includes a step of preparing a substrate including a first layer, a step of forming a flow path mold for forming the flow path and a member located outside the mold with a gap between the mold and the member from the first layer, a step of providing a second layer so that the second layer fills the gap and covers the mold and the member located outside the mold with the gap between them, a step of forming an ejection orifice forming member for forming an ejection orifice from the second layer, a step of removing the member located outside the mold with the gap between them, and a step of forming a wall member located outside the ejection orifice forming member with at least a partial gap between the ejection orifice forming member and the wall member.