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. 13, 2009
Filed:
Jul. 25, 2006
Tsuyoshi Kitahara, Nagano, JP;
Hiroshi Arai, Nagano, JP;
Tsuyoshi Kitahara, Nagano, JP;
Hiroshi Arai, Nagano, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
The present invention relates to a method of manufacturing a piezoelectric vibration element unit used for an inkjet recording head. The method includes the steps of alternately laminating conductive layers and piezoelectric material layers, sintering a laminated structure after the conductive layers and the piezoelectric layers are laminated to a predetermined thickness, forming external connection electrodes on surfaces of the sintered structure, and fixing a non-vibration region of the sintered structure onto a fixing plate. A region of the structure where the conductive layers are formed is cut into drive piezoelectric vibration elements, and a region of the structure where the conductive layers are not formed is cut into a dummy piezoelectric element.