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:
Aug. 20, 2013
Filed:
Apr. 07, 2008
Yukuo Yamaguchi, Tokyo, JP;
Yutaka Koizumi, Yokohama, JP;
Mikiya Umeyama, Tokyo, JP;
Kiyomitsu Kudo, Machida, JP;
Masaru Iketani, Atsugi, JP;
Yuichiro Akama, Kawasaki, JP;
Satoshi Kimura, Kawasaki, JP;
Yukuo Yamaguchi, Tokyo, JP;
Yutaka Koizumi, Yokohama, JP;
Mikiya Umeyama, Tokyo, JP;
Kiyomitsu Kudo, Machida, JP;
Masaru Iketani, Atsugi, JP;
Yuichiro Akama, Kawasaki, JP;
Satoshi Kimura, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A recording head includes a plurality of nozzle arrays separately provided so as to correspond to kinds of recording liquids to be discharged, a plurality of common liquid chambers from which the recording liquids are supplied to the nozzle arrays, a plurality of recording-liquid introducing passages communicating with the common liquid chambers, and a plurality of filters provided in the recording-liquid introducing passages. Upstream aperture areas of the filters are equal to each other, and downstream aperture areas of the filters are different according to the kinds of recording liquids passing through the filters.