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:
Oct. 12, 2004
Filed:
Sep. 11, 2002
Yutaka Furuhata, Nagano-ken, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A liquid-jet head in which a wiring structure is simplified to achieve miniaturization and a liquid-jet apparatus are disclosed. The liquid-jet head includes: a sealing plate joined to a piezoelectric element side of a passage-forming substrate and having a piezoelectric element holding portion, the sealing plate hermetically sealing a space secured in a region facing a piezoelectric element to an area extent not to hinder a movement thereof; and a lead electrode provided on the passage-forming substrate and drawn out from an electrode of the piezoelectric element to an outside of the piezoelectric element holding portion, wherein the sealing plate has a plurality of penetrated holes penetrating therethrough in a thickness direction thereof, and on an inner surface of each penetrated hole, a wiring electrode is provided, one end thereof being connected to the lead electrode outside of the piezoelectric element holding portion, and other end thereof being connected to a drive wiring extended from a drive circuit for driving the piezoelectric element on an opening edge portion of the penetrated hole on a side opposite the passage-forming substrate. Thus, the wiring structure can be simplified, and the miniaturization of the head can be achieved.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile