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:
Sep. 12, 2006
Filed:
Dec. 04, 2003
Hoon Song, Seoul, KR;
Yong-soo OH, Seongnam, KR;
Jong-woo Shin, Suwon, KR;
Chang-seung Lee, Seongnam, KR;
Hyung-taek Lim, Seoul, KR;
Hoon Song, Seoul, KR;
Yong-soo Oh, Seongnam, KR;
Jong-woo Shin, Suwon, KR;
Chang-seung Lee, Seongnam, KR;
Hyung-taek Lim, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A monolithic ink-jet printhead includes a substrate which has an ink chamber to be supplied with ink, a manifold for supplying ink to the ink chamber, and an ink channel for providing communication between the ink chamber and the manifold, a nozzle plate including a plurality of passivation layers sequentially stacked on the substrate, a metal layer formed on the passivation layers, and a nozzle, through which ink is ejected from the ink chamber, that penetrates the nozzle plate, a heater provided between adjacent passivation layers, the heater being located above the ink chamber for heating ink within the ink chamber, a conductor provided between adjacent passivation layers, the conductor being electrically connected to the heater for applying a current to the heater, and a hydrophobic coating layer formed exclusively on an outer surface of the metal layer.