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.

Date of Patent:
Aug. 23, 2011

Filed:

Apr. 07, 2010
Applicants:

Hwa-sun Lee, Suwon-si, KR;

Kyo-yeol Lee, Yongin-si, KR;

Tae-kyung Lee, Suwon-si, KR;

Chang-youl Moon, Suwon-si, KR;

Jae-woo Chung, Suwon-si, KR;

Inventors:

Hwa-sun Lee, Suwon-si, KR;

Kyo-yeol Lee, Yongin-si, KR;

Tae-kyung Lee, Suwon-si, KR;

Chang-youl Moon, Suwon-si, KR;

Jae-woo Chung, Suwon-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/045 (2006.01);
U.S. Cl.
CPC ...
Abstract

An inkjet printhead and a method of driving the inkjet printhead include a flow channel substrate having a pressure chamber, and a piezoelectric actuator formed on the flow channel substrate to apply a driving force to the pressure chamber to eject ink. The piezoelectric actuator includes a piezoelectric layer formed on the flow channel substrate to correspond to the pressure chamber, and a plurality of common electrodes and a plurality of driving electrodes alternately arranged in a length direction of the piezoelectric layer.


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