Patents by Inventor Jeong Wuk HAN

Jeong Wuk HAN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20090071936
    Abstract: A method of manufacturing an inkjet printhead using a channel forming material, in which a glue layer to enhance an adhesive force between a substrate and a channel forming layer is not required.
    Type: Application
    Filed: August 18, 2008
    Publication date: March 19, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Byung-ha PARK, Young-ung Ha, Sung-joon Park, Jeong-wuk Han
  • Publication number: 20090027450
    Abstract: An inkjet print head and a manufacturing method thereof capable of simplifying a manufacturing process without performing an additional process to form a heater layer that includes a substrate, a heating element stacked on the substrate to heat the ink, a transistor having a gate electrode to drive the heating element, a chamber layer to form an ink chamber filled with the ink above the heating element, and a nozzle layer stacked on the chamber layer to form a nozzle to eject the ink, wherein the gate electrode and the heating element include a metal silicide film formed through a salicide process.
    Type: Application
    Filed: May 8, 2008
    Publication date: January 29, 2009
    Applicant: Samsung Electronics Co., Ltd
    Inventors: Sung Joon PARK, Tae Jin Kim, Dai Geun Kim, Jeong Wuk Han
  • Publication number: 20080174639
    Abstract: An ink-jet print head and a method for manufacturing the same. The ink-jet print head includes: an ink ejection part to eject ink; pad regions having connecting pads to apply an electric signal to the ink ejection part; and unitary partition walls disposed at outer edges of the pad regions. The partition walls prevent particles, which are generated when cutting apart adjacent print heats when manufacturing the ink-jet print head, from scattering onto the pad regions. The partition walls are formed together with a flow channel layer and a nozzle layer of the ink ejection part.
    Type: Application
    Filed: November 28, 2007
    Publication date: July 24, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Sung Joon PARK, Jeong Wuk HAN, Yong Shik PARK