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. 15, 2006
Filed:
Dec. 03, 2003
Satoru Tobita, Ibaraki, JP;
Yoshitaka Akiyama, Ibaraki, JP;
Toshiharu Sumiya, Ibaraki, JP;
Yoshikane Matsumoto, Ibaraki, JP;
Satoru Tobita, Ibaraki, JP;
Yoshitaka Akiyama, Ibaraki, JP;
Toshiharu Sumiya, Ibaraki, JP;
Yoshikane Matsumoto, Ibaraki, JP;
Hitachi Printing Solutions, Ltd., Tokyo, JP;
Abstract
An inkjet recording head includes: a nozzle plate having nozzles arranged in a row; a plurality of pressure generating chambers communicating to the nozzles, the plurality of pressure generating chambers including a first pressure generating chamber and a second pressure generating chamber; a diaphragm formed on one face of the pressure generating chamber; a common ink chamber for supplying the ink to the plurality of pressure generating chambers; and a piezoelectric element for displacing the diaphragm. The first pressure generating chamber is disposed on one side of the nozzles and a second pressure generating chamber is disposed on the other side. The first and second pressure generating chambers are opposed to each other across the nozzles so that the central lines of the first and second pressure generating chambers are almost coincident.