Patents by Inventor Donk-sik Shim

Donk-sik Shim 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).

  • Inkhead printhead configured to overcome impaired print quality due to nozzle blockage, printing method using the same, and method of manufacturing the inkjet printhead
    Patent number: 7862150
    Abstract: The inkjet printhead includes substrate having an ink feed hole formed to supply ink, a chamber layer stacked on the substrate, and including a plurality of main ink chambers formed therein with the ink feed hole therebetween and a plurality of compensation ink chambers formed therein between the main ink chambers that face each other; and a nozzle layer stacked on the chamber layer, and including a plurality of main nozzles corresponding to the main ink chambers and a plurality of compensation nozzles corresponding to the compensation ink chambers.
    Type: Grant
    Filed: September 24, 2007
    Date of Patent: January 4, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Moon-chul Lee, Myong-jong Kwon, Yong-seop Yoon, Jin-wook Lee, Yong-won Jeong, Donk-sik Shim
  • INKJET PRINTHEAD, PRINTING METHOD USING THE SAME, AND METHOD OF MANUFACTURING THE INKJET PRINTHEAD
    Publication number: 20080231665
    Abstract: The inkjet printhead includes substrate having an ink feed hole formed to supply ink, a chamber layer stacked on the substrate, and including a plurality of main ink chambers formed therein with the ink feed hole therebetween and a plurality of compensation ink chambers formed therein between the main ink chambers that face each other; and a nozzle layer stacked on the chamber layer, and including a plurality of main nozzles corresponding to the main ink chambers and a plurality of compensation nozzles corresponding to the compensation ink chambers.
    Type: Application
    Filed: September 24, 2007
    Publication date: September 25, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Moon-chul Lee, Myong-jong Kwon, Yong-seop Yoon, Jin-wook Lee, Yong-won Jeong, Donk-sik Shim