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. 09, 2005
Filed:
Apr. 04, 2003
Shuji Yonekubo, Nagano-Ken, JP;
Shuji Yonekubo, Nagano-Ken, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A liquid jetting head of the invention includes a nozzle plate having a plurality of nozzles and a flowing-path plate layered on the nozzle plate. The flowing-path plate has a plurality of nozzle-communicating chambers and a plurality of elongated pressure-chambers. The plurality of nozzle-communicating chambers respectively communicate with the plurality of nozzles, the plurality of pressure-chambers respectively communicate with the plurality of nozzle-communicating chambers, and the plurality of pressure-chambers are open to a side away from the nozzle plate. A vibrating plate commonly seals the open surfaces of the plurality of pressure-chambers of the flowing-path plate, and a plurality of pressure-generating units respectively changes pressures of liquid in the respective pressure-chambers. The plurality of nozzles are aligned on a line segment, and at least one of the pressure-chambers communicating with at least one of the nozzles in the vicinity of an end of the line segment is formed so as to have a shorter length than at least one of the pressure-chambers communicating with at least one of the nozzles away from the end of the line segment.