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:
Sep. 04, 2012
Filed:
Dec. 11, 2009
Satoshi Ibe, Yokohama, JP;
Yoshinori Tagawa, Yokohama, JP;
Kazuhiro Asai, Kawasaki, JP;
Hiroto Komiyama, Tokyo, JP;
Toshiaki Kurosu, Kawasaki, JP;
Masataka Nagai, Yokohama, JP;
Satoshi Ibe, Yokohama, JP;
Yoshinori Tagawa, Yokohama, JP;
Kazuhiro Asai, Kawasaki, JP;
Hiroto Komiyama, Tokyo, JP;
Toshiaki Kurosu, Kawasaki, JP;
Masataka Nagai, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A liquid ejection head according to the present invention includes a heat-generating resistor layer, a first electrode layer, an insulating layer extending over the heat-generating resistive layers and the first electrode layer, and a second electrode layer that has a first portion which extending through the insulating layer and which is electrically connected to the first electrode layer and also has a second portion which is not in contact with the insulating layer. The second portion has a space or a piece of resin disposed between the insulating layer and the second electrode layer.