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:
Jan. 30, 2006
Hirosumi Ito, Nagoya, JP;
Hirosumi Ito, Nagoya, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya-shi, Aichi-ken, JP;
Abstract
An ink-jet head comprises a piezoelectric actuator including a piezoelectric layer, individual electrodes respectively corresponding to ink ejection channels and formed on a surface of the piezoelectric layer, lands formed on the surface of the piezoelectric layer so as to be electrically connected to the respective individual electrodes, and a common electrode opposed to the individual electrodes with the piezoelectric layer being interposed therebetween. A height of the land from the surface of the piezoelectric layer is larger than a height of the individual electrode from the surface of the piezoelectric layer. The land has a hole opening in its top face which is remote from the piezoelectric layer.