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:
Jun. 07, 2011
Filed:
Sep. 14, 2007
Applicant:
Satoshi Nozu, Ebina, JP;
Inventor:
Satoshi Nozu, Ebina, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
There is disclosed a manufacturing method in which depths of individual liquid chambers can be set to be small. The manufacturing method is a manufacturing method of a liquid discharge head having a liquid chamber which communicates with a discharge port for discharging a liquid, and includes: etching a first Si layer of an SOI substrate by use of an insulating layer as an etching stop layer to form the liquid chamber at the first Si layer, the SOI substrate being constituted by the first Si layer, the insulating layer and a second Si layer in this order; and removing a part or all of the second Si layer.