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:
Nov. 28, 2017
Filed:
May. 16, 2016
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Tomohisa Atsuta, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/14 (2006.01);
U.S. Cl.
CPC ...
B41J 2/14 (2013.01); B41J 2002/14491 (2013.01);
Abstract
A liquid ejection head and a liquid ejection apparatus are configured to suppress degradation in the insulation property of an electrical wiring substrate while preventing an ejection element substrate from being cracked or a wiper from being abraded. As one configuration, a step portion with a step surface having a step between an ejection opening surface and a surface for mounting an electrical wiring substrate thereon in a second support member is provided and a gap between the ejection element substrate and the step portion and a region between the electrical wiring substrate and a stepped surface are sealed by a sealant.