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:
Feb. 25, 2020
Filed:
Dec. 05, 2018
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Shimpei Yoshikawa, Yokohama, JP;
Ryo Sato, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/19 (2006.01); B41J 2/175 (2006.01);
U.S. Cl.
CPC ...
B41J 2/19 (2013.01); B41J 2/17506 (2013.01); B41J 2/17513 (2013.01); B41J 2/17596 (2013.01); B41J 2202/07 (2013.01);
Abstract
A liquid ejection head including a supplying path supplying a liquid ejected from an ejection port includes a vent path branching from the supplying path to extend along a horizontal direction, the vent path enabling collection of bubbles mixed into the liquid. An inner surface of the vent path extending along the horizontal direction includes an area formed thereon and having a greater contact angle to the liquid than that of an inner surface of the supplying path.