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. 11, 2009
Filed:
Sep. 29, 2005
Kazuo Sanada, Kanagawa, JP;
Kazuo Sanada, Kanagawa, JP;
Fujifilm Corporation, Tokyo, JP;
Abstract
The liquid ejection head comprises: a nozzle surface on which a plurality of nozzles are arranged; a diaphragm on which a plurality of piezoelectric elements are arranged; a plurality of pressure chambers which are defined between the nozzle surface and the diaphragm, each of the plurality of pressure chambers applying pressure to liquid which is ejected from a corresponding one of the plurality of nozzles; a common liquid chamber which is defined on a side of the diaphragm opposite to a side of the diaphragm on which the plurality of pressure chambers are defined, the common liquid chamber communicating with each of the plurality of pressure chambers via a corresponding supply port, at least a portion of a surface of the common liquid chamber which contacts liquid being made as a thin layer; and a plurality of electrical wires which are formed in a direction substantially perpendicular to a surface of the diaphragm on which the piezoelectric elements are arranged, at least a portion of each of the electrical wires passing through the common liquid chamber.