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. 12, 2013
Filed:
Dec. 15, 2010
Hiroto Komiyama, Tokyo, JP;
Yoshinori Tagawa, Yokohama, JP;
Satoshi Ibe, Yokohama, JP;
Mitsuru Chida, Yokohama, JP;
Kazuhiro Asai, Kawasaki, JP;
Hiroto Komiyama, Tokyo, JP;
Yoshinori Tagawa, Yokohama, JP;
Satoshi Ibe, Yokohama, JP;
Mitsuru Chida, Yokohama, JP;
Kazuhiro Asai, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
When an insulating layer is provided in order to protect an energy generating element, there arises a possibility that the layer dissolves in a contacting liquid. Therefore, in order to eject liquid, a first protection layer containing metal is provided on the insulating layer facing a substrate for a liquid-ejection head and a second protection layer containing metal is provided on the surface of a liquid supply port to which a base containing silicon is exposed.