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:
Mar. 17, 2015
Filed:
Apr. 30, 2012
Hitoshi Nishikori, Inagi, JP;
Satoshi Masuda, Yokohama, JP;
Tomoki Yamamuro, Kawasaki, JP;
Osamu Iwasaki, Tokyo, JP;
Norihiro Kawatoko, Yokohama, JP;
Atsuhiko Masuyama, Yokohama, JP;
Fumiko Suzuki, Kawasaki, JP;
Hitoshi Nishikori, Inagi, JP;
Satoshi Masuda, Yokohama, JP;
Tomoki Yamamuro, Kawasaki, JP;
Osamu Iwasaki, Tokyo, JP;
Norihiro Kawatoko, Yokohama, JP;
Atsuhiko Masuyama, Yokohama, JP;
Fumiko Suzuki, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Provided are an inkjet printing apparatus and inkjet printing method that can, regardless of an ejection frequency of a print head, stabilize density of an image expressed on a print medium. For this purpose, an ink concentration integrated value is obtained according to the ejection history of each nozzle so as to be increased by data indicating non-ejection of the nozzle or decreased by data indicating ejection. Then, image data on the target pixel is corrected such that density of the target pixel is further reduced as the pixel is subjected to printing by a nozzle having a higher ink concentration integrated value.