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:
May. 01, 2007
Filed:
Nov. 19, 2004
Takeshi Yasoshima, Nagano-ken, JP;
Takeshi Yasoshima, Nagano-ken, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A liquid jet head includes a passage-forming substrate including pressure generating chambers communicating with nozzle orifices, and piezoelectric elements provided on one side of the passage-forming substrate, with a vibration plate between the elements and the plate. The piezoelectric elements include lower and upper electrodes, and a piezoelectric layer. In the liquid jet head, pressure generating chambers are arranged in a width direction. The lower electrode is continuously provided from a region facing the pressure generating chambers to a region facing compartment walls. The liquid jet head includes a lead electrode for lower electrode, which is drawn out from the lower electrode in the region facing the compartment walls, and which includes a first lead electrode, having a width equivalent to or narrower than that of the compartment wall, and a second lead electrode formed on the first lead electrode and wider than the first lead electrode.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile