Patents by Inventor Hwapyeong Jeong

Hwapyeong Jeong 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: 20250051905
    Abstract: A display device manufacturing apparatus includes a mask assembly, and a deposition module configured to supply a deposition material toward the mask assembly. The deposition module includes a deposition frame, a spraying portion, a heater, and a close contact portion. The deposition frame has an internal space. The spraying portion includes a crucible portion and a nozzle portion. The heater heats the nozzle portion and is configured to be switchable between a first state and a second state with a higher heating value than the first state. The close contact portion brings the crucible portion and the nozzle portion into close contact with each other, and the close contact portion includes a pressing surface spaced apart from the spraying portion in the first state and configured to press on the spraying portion in the second state.
    Type: Application
    Filed: March 7, 2024
    Publication date: February 13, 2025
    Inventors: Hwapyeong Jeong, Mingyu Seo, Sangmin Jung, Ganyoung Park, Jonggun Yun, Kyoungwoon Lee
  • Publication number: 20250043409
    Abstract: A deposition apparatus includes a mask frame, a mask disposed on the mask frame, a crucible disposed below the mask frame, and a nozzle coupled to the crucible, and disposed between the crucible and the mask frame. The nozzle includes a body part including a coupling opening, and a spray part disposed in the coupling opening and including a hole overlapping the coupling opening. A thermal expansion coefficient of the spray part is greater than a thermal expansion coefficient of the body part.
    Type: Application
    Filed: May 3, 2024
    Publication date: February 6, 2025
    Applicant: Samsung Display Co., Ltd.
    Inventors: DONGKIUN SEO, MIN-GYU SEO, SANGMIN JUNG, GANYOUNG PARK, CHULHWAN AN, HWAPYEONG JEONG
  • Publication number: 20240376589
    Abstract: A deposition source includes a crucible, a plurality of nozzles, a housing, a lower heater module, an upper heater module, a first electrode, a second electrode, and a power supply. The crucible accommodates a deposition material. The plurality of nozzles is disposed on the crucible and spaced apart from each other along a first direction. The housing accommodates the crucible and the plurality of nozzles. The lower heater module is disposed in an inner space of the housing to surround the crucible. The upper heater module is disposed on the lower heater module. The first electrode extends in a second direction crossing the first direction and is connected to the lower heater module. The second electrode extends in the second direction. The second electrode is connected to the upper heater module. The power supply is electrically connected to the first electrode and the second electrode.
    Type: Application
    Filed: May 3, 2024
    Publication date: November 14, 2024
    Inventors: SANGMIN JUNG, MIN- GYU SEO, EUGENE KANG, HWAPYEONG JEONG, DONGKIUN SEO, CHULHWAN AN
  • Patent number: 10132730
    Abstract: The present invention relates to an apparatus for preparing cell-derived artificial microvesicles, and more specifically, to an apparatus for preparing artificial microvesicles by allowing cells, which are concentrated using centrifugal force, to pass through a porous filter. Artificial microvesicles prepared according to the present invention maintains the structure of the cell membrane as it is, and contains cytoplasm by minimizing the loss of cytoplasm by using a buffer solution during preparation. Therefore, the artificial microvesicles prepared using the apparatus of the present invention is expected to be useful for applied research such as the diagnosis of diseases, drug delivery techniques and basic research.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: November 20, 2018
    Assignee: POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Jae-Sung Park, Wonju Jo, Jun Ho Kim, Siwoo Cho, Hwapyeong Jeong
  • Publication number: 20160305857
    Abstract: The present invention relates to an apparatus for preparing cell-derived artificial microvesicles, and more specifically, to an apparatus for preparing artificial microvesicles by allowing cells, which are concentrated using centrifugal force, to pass through a porous filter. Artificial microvesicles prepared according to the present invention maintains the structure of the cell membrane as it is, and contains cytoplasm by minimizing the loss of cytoplasm by using a buffer solution during preparation. Therefore, the artificial microvesicles prepared using the apparatus of the present invention is expected to be useful for applied research such as the diagnosis of diseases, drug delivery techniques and basic research.
    Type: Application
    Filed: March 28, 2014
    Publication date: October 20, 2016
    Applicant: POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Jae-Sung Park, Wonju Jo, Jun Ho Kim, Siwoo Cho, Hwapyeong Jeong