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:
Nov. 29, 2011
Filed:
Sep. 12, 2008
Moon-chul Lee, Seongnam-si, KR;
Yong-seop Yoon, Seoul, KR;
Yong-won Jeong, Seoul, KR;
Dong-sik Shim, Hwaseong-si, KR;
Sung-joon Park, Suwon-si, KR;
Jong-seok Kim, Hwanseong-si, KR;
Moon-chul Lee, Seongnam-si, KR;
Yong-seop Yoon, Seoul, KR;
Yong-won Jeong, Seoul, KR;
Dong-sik Shim, Hwaseong-si, KR;
Sung-joon Park, Suwon-si, KR;
Jong-seok Kim, Hwanseong-si, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Abstract
A thermal inkjet printhead is provided including a substrate, and a chamber layer, which is stacked on the substrate. The chamber layer includes an ink chamber that is filled with ink supplied from an ink feed hole. The printhead includes a heater inside the ink chamber that heats the ink, an island, which is formed on the substrate at an ink inlet port of the ink chamber, and a nozzle layer, which is stacked on the chamber layer, including a nozzle for ejecting the ink. The walls of the ink chamber and the island that face each other are symmetrical with respect to the center of the nozzle.