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. 18, 2020
Filed:
Aug. 30, 2018
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Keiji Matsumoto, Fukushima, JP;
Seiichiro Yaginuma, Kawasaki, JP;
Koji Sasaki, Nagareyama, JP;
Jun Yamamuro, Yokohama, JP;
Kunihito Uohashi, Yokohama, JP;
Ryotaro Murakami, Yokohama, JP;
Tomohiko Nakano, Fukushima, JP;
Shingo Nagata, Tokyo, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 2/16 (2006.01);
U.S. Cl.
CPC ...
B41J 2/1628 (2013.01); B41J 2/162 (2013.01); B41J 2/1603 (2013.01); B41J 2/1629 (2013.01); B41J 2/1631 (2013.01); B41J 2/1632 (2013.01); B41J 2/1635 (2013.01); B41J 2/1642 (2013.01);
Abstract
To manufacture a liquid ejection head, a film having a lower surface free energy than a surface free energy of a substrate is first formed on an inner face of a liquid supply port. Next, a dry film to be a flow path forming member is attached to cover the surface of the substrate, and then a member to be an ejection orifice forming member is provided on the surface of the dry film.