Patents by Inventor Se-hyun SIM

Se-hyun SIM 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: 20240408895
    Abstract: An inkjet printing equipment includes a work holder which fixes the object to be printed, a work holder moving part which allows the work holder to be linearly movable in a Y-axis direction, a base on which the work holder moving part is installed, a head part which is installed on the base and sprays an ink onto the object to be printed, a head part moving part which moves the head part in an X-axis direction and is installed above the base, an ink curing part installed above the work holder and on a moving path of the work holder in the Y-axis direction, and an enclosure which covers all of the work holder, the head part, and the ink curing part.
    Type: Application
    Filed: October 17, 2022
    Publication date: December 12, 2024
    Inventors: SUNG JIN LEE, WON SEOK LEE, SUK GYU LEE, HO MAENG, JUNG HUN PARK, CHANG WOO SEO, SE HYUN SIM, YEON JIN JUNG
  • Publication number: 20240025192
    Abstract: An apparatus for inspecting an inkjet head nozzle is capable of rapidly inspecting a jetting state of ink droplets sprayed from a head nozzle of inkjet equipment provided in a glove box. The apparatus for inspecting the inkjet head nozzle according to an embodiment includes a cartridge fastening portion which is installed in the glove box having the built-in inkjet equipment, and a cartridge portion which is provided with a testbed for the inspection of the jetting state of ink droplets from the head nozzle of the inkjet equipment, which has an inspection film supply roll and an inspection film recovery roll that are installed therein and replaceable so as to supply an inspection film onto the upper portion of the testbed, and which is attachable to/detachable from the cartridge fastening portion.
    Type: Application
    Filed: September 2, 2021
    Publication date: January 25, 2024
    Inventors: Sung Jin LEE, Jung Hun PARK, Ho MAENG, Se Hyun SIM
  • Patent number: 11718093
    Abstract: An inkjet printing method may includes a dot pattern printing process of printing a dot pattern group by discharging ink at a preset position of a surface of an object using a nozzle group for forming a dot pattern so that dropped droplets are not in overlap with each other, a connection pattern printing process of printing a connection pattern group by discharging ink at a position between neighboring patterns using a nozzle group for forming a connection pattern so that the same attractive force acts to the neighboring patterns dropped on the surface of the object, and a finishing printing process of finishing a coating of the surface of the object by discharging ink to an area except for neighboring dropped droplets using a nozzle group for finishing so that the same attractive force act to the dropped droplets that are dropped on the surface of the object.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: August 8, 2023
    Assignee: UNIJET CO., LTD.
    Inventors: Seog-soon Kim, Hee-jun Han, Se-hyun Sim, Jong-gyun Lee
  • Publication number: 20220402266
    Abstract: An inkjet printing method may includes a dot pattern printing process of printing a dot pattern group by discharging ink at a preset position of a surface of an object using a nozzle group for forming a dot pattern so that dropped droplets are not in overlap with each other, a connection pattern printing process of printing a connection pattern group by discharging ink at a position between neighboring patterns using a nozzle group for forming a connection pattern so that the same attractive force acts to the neighboring patterns dropped on the surface of the object, and a finishing printing process of finishing a coating of the surface of the object by discharging ink to an area except for neighboring dropped droplets using a nozzle group for finishing so that the same attractive force act to the dropped droplets that are dropped on the surface of the object.
    Type: Application
    Filed: February 10, 2021
    Publication date: December 22, 2022
    Inventors: Seog-soon KIM, Hee-jun HAN, Se-hyun SIM, Jong-gyun LEE