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. 23, 2011
Filed:
Sep. 20, 2005
Tomomi Kawase, Matsumoto, JP;
Tomomi Kawase, Matsumoto, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A droplet ejection apparatus includes a plurality of droplet ejection heads divided into three groups with each group including first to fourth heads with a second head being disposed between the third and fourth heads, and the third head being disposed between the first and second heads when viewed in a direction parallel to nozzle arrays. In each group, the nozzle array of the first head overlaps the nozzle array of the third head throughout a first sub-area, the nozzle array of the first head overlaps the nozzle array of the fourth head throughout a second sub-area, and the nozzle array of the second head overlaps the nozzle array of the fourth head throughout a third sub-area when viewed from a direction perpendicular to the nozzle arrays. The second sub-areas of the three groups partially overlap each other when viewed from the direction perpendicular to the nozzle arrays.