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:
Dec. 24, 2013
Filed:
Nov. 11, 2008
Akihiko Okano, Kawasaki, JP;
Maki Kato, Kawasaki, JP;
Masaki Ohsumi, Yokosuka, JP;
Yoshinori Tagawa, Yokohama, JP;
Kazuhiro Asai, Kawasaki, JP;
Masahiko Kubota, Tokyo, JP;
Tamaki Sato, Kawasaki, JP;
Akihiko Okano, Kawasaki, JP;
Maki Kato, Kawasaki, JP;
Masaki Ohsumi, Yokosuka, JP;
Yoshinori Tagawa, Yokohama, JP;
Kazuhiro Asai, Kawasaki, JP;
Masahiko Kubota, Tokyo, JP;
Tamaki Sato, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A manufacturing method of a liquid ejection head provided with a flow passage communicating with an ejection outlet for ejecting liquid includes steps of preparing a substrate on which a flow passage wall forming member for forming a part of a wall of the flow passage and a solid layer having a shape of a part of the flow passage contact each other, wherein the flow passage wall forming member has a height, from a surface of the substrate, substantially equal to that of the solid layer; providing on the solid layer a pattern having a shape of another part of the flow passage; providing a coating layer, for forming another part of the wall of the flow passage, so as to coat the pattern; providing the ejection outlet to the coating layer; and forming the flow passage by removing the solid layer and the pattern.