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. 21, 2010
Filed:
Jul. 08, 2008
Yoshikazu Saito, Kawasaki, JP;
Shoji Shiba, Kawasaki, JP;
Yoshikazu Saito, Kawasaki, JP;
Shoji Shiba, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A manufacturing method for a liquid discharge head that includes a discharge port forming die member, where discharge ports for discharging liquid are formed, and liquid flow paths that communicate with the discharge ports, includes the steps of mounting, on a substrate, a first side wall forming member for forming portions of side walls of the liquid flow paths, forming, on the first side wall forming member, a first photosensitive material layer that serves as a second side wall forming member for formation of the other portions of the side walls, patterning the first photosensitive material layer to provide the second side wall forming member, forming, on the second side wall forming member, a second photosensitive material layer that serves as the discharge port forming member, and patterning the second photosensitive material layer to provide the discharge ports.