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:
Apr. 24, 2012
Filed:
Oct. 07, 2009
Sung-joon Park, Suwon-si, KR;
Myong-jong Kwon, Suwon-si, KR;
Jin-wook Lee, Seoul, KR;
Young-ung Ha, Suwon-si, KR;
Sung-Joon Park, Suwon-si, KR;
Myong-Jong Kwon, Suwon-si, KR;
Jin-Wook Lee, Seoul, KR;
Young-Ung Ha, Suwon-si, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Abstract
Provided are an inkjet printhead and a method of manufacturing the same. The inkjet printhead includes: a substrate including an ink feed hole; a chamber layer formed on the substrate and including a plurality of ink chambers in which ink supplied from the ink feed hole may be filled; and a nozzle layer formed on the chamber layer and including a plurality of nozzles through which ink may be ejected, wherein the chamber layer and the nozzle layer are respectively formed of cured products of a first negative photoresist composition and a second negative photoresist composition, wherein the first negative photoresist composition and the second negative photoresist composition include a bisphenol-A novolac epoxy resin represented by Formula 1; at least one epoxy resin selected from a first epoxy resin represented by Formula 2, and a second epoxy resin represented by Formula 3; a cationic photoinitiator; and a solvent.