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. 23, 2009
Filed:
Sep. 10, 2007
Akihiko Shimimura, Yokohama, JP;
Tadayoshi Inamoto, Hachioji, JP;
Kazunari Ishizuka, Suntoh-gun, JP;
Akihiko Shimimura, Yokohama, JP;
Tadayoshi Inamoto, Hachioji, JP;
Kazunari Ishizuka, Suntoh-gun, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A method for producing an ink-jet recording head having a discharge port configured to discharge ink, a passage-forming member configured to form an ink passage communicating with the discharge port, and a substrate provided with an energy-generating element configured to generate energy utilized for discharging ink includes the steps of forming a pattern for the passage on the substrate, the pattern being composed of a positive photosensitive resin that is insensitive to light having a wavelength of 300 nm to 470 nm, forming a coating resin layer to be the passage-forming member on the substrate having the pattern, exposing the coating resin layer to only light having a wavelength of 300 nm or more to form the discharge port, and removing the pattern to form the passage.