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:
Sep. 13, 2011
Filed:
Nov. 12, 2007
Hideo Watanabe, Tokyo, JP;
Hideo Watanabe, Tokyo, JP;
Abstract
An ink jet head includes a head chip having driving walls made up of piezoelectric device, ink channels that eject ink, air channels that do not eject ink, driving electrodes formed inside of the of the channels, at least one common electrode that conducts with the driving electrodes of the air channels, and connection electrodes that conduct with the driving electrodes of the ink channels separately, wherein the ink channels and the air channels are alternatingly arranged in parallel and form channel rows arranged in parallels, and a nozzle plate joined to a front surface of the head chip and has a plurality of nozzles, wherein individual connection electrodes of any adjacent two channel rows formed at a side of an edge of the head chip are lead out and aligned at the edge of the head chip.