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:
Mar. 05, 2013
Filed:
Aug. 26, 2011
Chiang-ho Cheng, Hsinchu, TW;
Chi-feng Huang, Hsinchu, TW;
Chiang-Ho Cheng, Hsinchu, TW;
Chi-Feng Huang, Hsinchu, TW;
Microjet Technology Co., Ltd, Hsinchu, TW;
Abstract
A piezoelectric inkjet head structure includes an upper cover plate, a lower cover plate, a piezoelectric actuating module, a nozzle plate and a seal layer. The piezoelectric actuating module includes an upper piezoelectric chip, a lower piezoelectric chip, a first electrode, a second electrode, a conductive layer and a plurality of flow channels. The entrances of the flow channels of the upper piezoelectric chip and the lower piezoelectric chip are separated from each other by the same spacing interval. The entrances of the flow channels of the upper piezoelectric chip and the entrances of the flow channels of the lower piezoelectric chip are arranged in a staggered form. During operation of the piezoelectric actuating module, ink liquid is introduced into the flow channels of the piezoelectric actuating module from the upper cover plate and the lower cover plate, and then ejected out of the nozzles.