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:
Oct. 01, 2013
Filed:
Mar. 15, 2012
Toshiaki Kurosu, Kawasaki, JP;
Koji Sasaki, Nagareyama, JP;
Kouji Hasegawa, Kawasaki, JP;
Satoshi Ibe, Yokohama, JP;
Yoshinori Tagawa, Yokohama, JP;
Toshiaki Kurosu, Kawasaki, JP;
Koji Sasaki, Nagareyama, JP;
Kouji Hasegawa, Kawasaki, JP;
Satoshi Ibe, Yokohama, JP;
Yoshinori Tagawa, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Provided is a liquid ejection head, including: an ejection orifice forming member having an ejection orifice for ejecting liquid; a substrate having a supply port for supplying the liquid to the ejection orifice; and a filter disposed at a position upstream of the ejection orifice when the liquid is supplied to the ejection orifice, in which the filter includes an opening having a diameter smaller than or equal to a diameter of the ejection orifice, and a tapered shape structure disposed at a position upstream of the opening when the liquid is supplied to the ejection orifice, the tapered shape structure having a distal end directed toward an upstream side.