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:
Apr. 16, 2013
Filed:
Aug. 26, 2011
Applicants:
Akihiko Okano, Fujisawa, JP;
Masahiko Kubota, Tokyo, JP;
Ryoji Kanri, Zushi, JP;
Yoshiyuki Fukumoto, Kawasaki, JP;
Masafumi Morisue, Tokyo, JP;
Inventors:
Akihiko Okano, Fujisawa, JP;
Masahiko Kubota, Tokyo, JP;
Ryoji Kanri, Zushi, JP;
Yoshiyuki Fukumoto, Kawasaki, JP;
Masafumi Morisue, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
Provided is a liquid ejection head including a substrate including a liquid supply port and an energy generating element, in which the liquid supply port has at least one groove shape formed in a wall surface thereof, the at least one groove shape extending from a rear surface, which is a surface opposite to a front surface on which the energy generating element is formed, toward the front surface.