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:
Nov. 20, 2012
Filed:
Aug. 24, 2011
Masaru Iketani, Atsugi, JP;
Kiyomitsu Kudo, Machida, JP;
Yasushi Iijima, Tokyo, JP;
Tomotsugu Kuroda, Yokohama, JP;
Masaru Iketani, Atsugi, JP;
Kiyomitsu Kudo, Machida, JP;
Yasushi Iijima, Tokyo, JP;
Tomotsugu Kuroda, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A liquid-ejecting head includes a recording element substrate that includes an energy generating element generating energy for ejecting a liquid from a discharge port, a supporting member that supports the recording element substrate and has a liquid chamber supplying the liquid to the recording element substrate, a first supply port formed in one surface thereof, communicating with the liquid chamber, and having fluid communication with the recording element substrate, a second supply port being smaller than the first supply port, formed in a surface opposite the one surface at a position corresponding to a longitudinal end side of the first supply port, and communicating with the liquid chamber, and a flow passage forming member that supplies the liquid to the second supply port. The cross-section of the liquid chamber in a direction extending from the opposite toward one surfaces gradually increases in part of the extending direction.