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:
Jun. 18, 2019
Filed:
Apr. 17, 2017
Canon Kabushiki Kaisha, Tokyo, JP;
Jun Yamamuro, Yokohama, JP;
Kenji Fujii, Yokohama, JP;
Kazuhiro Asai, Kawasaki, JP;
Keiji Matsumoto, Fukushima, JP;
Koji Sasaki, Nagareyama, JP;
Kunihito Uohashi, Yokohama, JP;
Seiichiro Yaginuma, Kawasaki, JP;
Masahisa Watanabe, Yokohama, JP;
Ryotaro Murakami, Yokohama, JP;
Tomohiko Nakano, Kawasaki, JP;
Keiji Edamatsu, Kawasaki, JP;
Haruka Nakada, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A method for manufacturing a liquid ejection head including the steps of preparing a substrate including, on a surface of the substrate, a layer having a plurality of openings in which opening portions of supply portions are located and which are arrayed in an array direction and another opening which is different from the plurality of openings and is located beyond the array end portion in the array direction, and attaching a dry film for forming flow passages to the substrate and the layer.