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. 03, 2013
Filed:
Jun. 28, 2011
Applicants:
Mitsuru Chida, Yokohama, JP;
Satoshi Ibe, Yokohama, JP;
Hiroto Komiyama, Tokyo, JP;
Yoshinori Tagawa, Yokohama, JP;
Inventors:
Mitsuru Chida, Yokohama, JP;
Satoshi Ibe, Yokohama, JP;
Hiroto Komiyama, Tokyo, JP;
Yoshinori Tagawa, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/14 (2006.01); H01L 41/22 (2013.01);
U.S. Cl.
CPC ...
Abstract
A liquid ejection head includes a flow path forming member having an ejection orifice for ejecting liquid therefrom and a liquid flow path communicated with the ejection orifice, a silicon substrate including a supply port for supplying the liquid to the liquid flow path, and a protective film which is formed on a wall surface of the supply port and which is formed of an organic resin which is of the same material as that of a member forming the flow path forming member.