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:
Jun. 10, 2008
Filed:
Jun. 01, 2005
Shingo Nagata, Machida, JP;
Keiichiro Tsukuda, Yokohama, JP;
Haruyuki Matsumoto, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ink jet recording head includes three sets of nozzle arrays each having a large nozzle array including a first ejection outlet group and an adjacent small nozzle array including a second ejection outlet group. The ejection outlets of the second ejection outlet group have smaller diameters than those of the first ejection outlet group. In nozzle arrays constituted by two adjacent ones of the three nozzle array sets, a large nozzle array, a small nozzle array, a small nozzle array, and a large nozzle array are arranged in the order named, in the main scanning direction. One of the two adjacent nozzle array sets ejects cyan ink, the other one of the two adjacent nozzle array sets ejects magenta ink, and a nozzle array set other than the two adjacent nozzle array sets ejects yellow ink.