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:
May. 26, 2015
Filed:
Mar. 31, 2014
Canon Kabushiki Kaisha, Tokyo, JP;
Mitsuru Chida, Yokohama, JP;
Kenji Fujii, Yokohama, JP;
Makoto Watanabe, Yokohama, JP;
Toshiaki Kurosu, Oita, JP;
Masataka Nagai, Yokohama, JP;
Takanobu Manabe, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ink jet recording head includes a substrate having a plurality of discharge energy generation elements and having an ink supply port, a protective film provided on the substrate and configured to protect wiring connected to the discharge energy generation elements, and an ink discharge port forming member, wherein the protective film has a protruding portion, wherein the ink discharge port forming member has a beam-like protrusion, wherein the beam-like protrusion has a reinforcing rib, and wherein a separation film containing gold is formed at a portion where the protruding portion and the reinforcing rib are held in close contact with each other.