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:
Jun. 25, 2002
Filed:
Dec. 13, 1999
Kazuaki Kurihara, Kawasaki, JP;
Michinori Kutami, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
The ink jet printer head comprises: a piezoelectric device including a stress removing electrode a stress removing piezoelectric layer formed on the stress removing electrode and a drive layers formed of drive electrodes and a piezoelectric layer formed on the stress removing piezoelectric layer the drive layer being divided in a plurality of drive portions and a plurality of non-drive portions by grooves which arrive at the stress removing piezoelectric layer and a channel plate jointed to the piezoelectric device and having discrete ink channels formed in parts thereof opposed to the drive portions corresponding to nozzles for jetting ink.