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:
Feb. 14, 2012
Filed:
Feb. 03, 2009
Rumi Akiyama, Kawasaki, JP;
Shingo Nagata, Kawasaki, JP;
Hidehiko Kanda, Yokohama, JP;
Atsushi Sakamoto, Kawasaki, JP;
Hirokazu Tanaka, Kawasaki, JP;
Wakako Yamamoto, Sagamihara, JP;
Rumi Akiyama, Kawasaki, JP;
Shingo Nagata, Kawasaki, JP;
Hidehiko Kanda, Yokohama, JP;
Atsushi Sakamoto, Kawasaki, JP;
Hirokazu Tanaka, Kawasaki, JP;
Wakako Yamamoto, Sagamihara, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention provides a liquid ejection head which includes a plurality of ejection portsarranged so as to form an ejection port row and which, after a recovery process of expanding and transferring a bubble toward an ink supply port, allows the bubble to be smoothly removed from a nozzle. electrothermal transducing elementA plurality of nozzle filtersare arranged between an ink supply port and the ink channelso that ink supplied to the bubbling chamberthrough the ink supply port is passed between the nozzle filtersto separate impurities contained in the ink, from the ink. When a distance between an ink channel inletand the nozzle filteris defined as Land a distance between the adjacent nozzle filtersis defined as L, a relationship between Land Lsatisfies L≦L
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile