Patents by Inventor Chang-hyun Park

Chang-hyun Park 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).

  • Patent number: 12198901
    Abstract: A chamber cleaning method in accordance with an exemplary embodiment includes a chamber stabilizing process for transporting a substrate, on which a thin film deposition process has been completed, out of a chamber and processing an inside of the chamber, wherein the chamber stabilizing process includes: a cleaning process for injecting a cleaning gas into the chamber and etching and cleaning byproducts generated by the thin film deposition; and a coating process for injecting a gas including at least one among aluminum (Al), zirconium (Zr) or hafnium (Hf) into the chamber, and generating a protective film on an inner wall of the chamber and at least one surface of components installed inside the chamber.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: January 14, 2025
    Assignee: JUSUNG ENGINEERING CO., LTD.
    Inventors: Yong Hyun Kim, Yoon Jeong Kim, Chang Kyun Park, Jae Wan Lee, Chul Joo Hwang
  • Patent number: 12199337
    Abstract: An antenna assembly for use with a wireless communication wearable device. The antenna assembly includes a circuit board with components extending from a surface thereof. The antenna assembly has a first radiator antenna and a second radiator antenna which extends about the perimeter of the first antenna. A first slot is provided between the first radiator antenna and the second radiator antenna. The first slot separates the first radiator antenna from the second radiator antenna.
    Type: Grant
    Filed: August 29, 2022
    Date of Patent: January 14, 2025
    Assignees: TE CONNECTIVITY SOLUTIONS GmbH, TYCO ELECTRONICS AMP KOREA CO., LTD.
    Inventors: Chang Hyun Lee, Jung-Hoon Kim, Dong Wook Park, Kiran Vanjani
  • Publication number: 20250015328
    Abstract: The present disclosure relates to a polymer electrolyte membrane including an ion conductor wherein the polymer electrolyte membrane contains an antioxidant-releasing material.
    Type: Application
    Filed: November 16, 2022
    Publication date: January 9, 2025
    Inventors: Jung Hwa PARK, Donghoon LEE, Kum Suck SONG, Sung Hyun YUN, Seung Jib YUM, Chang Hoon OH, Hye Song LEE, Eun Su LEE
  • Patent number: 12188126
    Abstract: Provided is a substrate processing apparatus. The positions of a first electrode and a second electrode are adjusted in advance in consideration of differences in coefficients of thermal expansion so that a short circuit created by contact between the first electrode and the second electrode is prevented even in the case in which the first electrode and the second electrode are thermally expanded during processing. Even in the case in which the first electrode and the second electrode are thermally expanded due to an increase in temperature during processing, a short circuit between the first electrode and the second electrode can be prevented, and the uniformity of a thin film can be maintained in the substrate processing apparatus for processing a large substrate.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: January 7, 2025
    Assignee: JUSUNG ENGINEERING CO., LTD.
    Inventors: Jae Wan Lee, Yong Hyun Kim, Yoon Jeong Kim, Yun Hoe Kim, Chang Kyun Park, Gu Hyun Jung, Ki Bum Kim, Seung Youb Sa, Chul Joo Hwang
  • Publication number: 20250006869
    Abstract: A light emitting diode, including a first type semiconductor layer, an active layer, and a second type semiconductor layer; an ohmic contact layer disposed on the second type semiconductor layer; a first insulating layer disposed on the semiconductor structure and including a first opening overlapping the first type semiconductor layer and a second opening overlapping the ohmic contact layer; a first connection wiring disposed on the first insulating layer, the first connection wiring having a first portion and a second portion; and a second connection wiring disposed on the first insulating layer and spaced apart from the first connection wiring, the second connection wiring electrically connected to the second type semiconductor layer through the second opening. The second connection wiring surrounds at least a portion of the first portion of the first connection wiring in a plan view.
    Type: Application
    Filed: September 13, 2024
    Publication date: January 2, 2025
    Applicant: SEOUL VIOSYS CO., LTD.
    Inventors: Chi Hyun IN, Jun Yong PARK, Kyu Ho LEE, Dae Woong Suh, Jong Hyeon CHAE, Chang Hoon KIM, Sung Hyun LEE
  • Patent number: 12179013
    Abstract: An electrode device for wrapping a vessel in the body according to an embodiment of the present invention comprise an electrode part that surrounds the vessel and denervates or modulates at least some nerves of the vessel; and a guide part that guides movement of the electrode part, wherein the electrode part includes: a first layer that is bent in order for the electrode part to be wound around the vessel; a second layer that is placed on the first layer and is bent in order for the electrode part to be wound in close contact with the vessel; an electrode that is placed on the second layer and denervates or modulates at least some nerves of the vessel with energy from an energy source generator.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: December 31, 2024
    Assignee: DEEPQURE INC.
    Inventors: Chang Wook Jeong, Sung Min Park, Jin Hwan Baik, Dong Hyun Yim, Du Jin Bach
  • Publication number: 20240425760
    Abstract: Embodiments of the present disclosure provide a method for producing synthetic fuel from water and carbon dioxide. The method includes the operations of (a) preparing water-derived hydrogen, (b) preparing carbon dioxide, (c) introducing the hydrogen and carbon dioxide into a first reaction to produce a first product comprising synthesis gas, (d) introducing the synthesis gas into a second reaction to produce a second product comprising syncrude, (e) dividing the syncrude oil into a plurality of fractions comprising a first fraction, (f) introducing at least one fraction of the plurality of fractions into a hydrogenation reaction to produce a third product, and (g) recovering a fraction corresponding to a boiling point range of the first fraction from the third product. The present disclosure also provides an aviation fuel produced by the method.
    Type: Application
    Filed: December 8, 2023
    Publication date: December 26, 2024
    Inventors: Hye Soo LEE, Seung Woo LEE, Chang Q LEE, Yun Hwa KIM, Ki Heum PARK, Dong Seok JANG, Seung Hyun CHO, Ji Young MOON, Jae Heum JUNG
  • Patent number: 12169092
    Abstract: A refrigerator includes a door frame and a perimetric surface of an insulation door panel of a panel unit that are spaced apart from each other. A component receiving groove is provided between the door frame and the perimetric surface of the insulation door panel, so that an operation module is received in the component receiving groove. When the operation module is received in the component receiving groove, at least of a part of the operation module is arranged to face a front surface of the panel unit through a bezel portion constituting the front surface of the panel unit. Therefore, a space for installing the operation module such as a detection sensor or a touch sensor is provided to be sufficiently wide along an edge of a door.
    Type: Grant
    Filed: August 15, 2023
    Date of Patent: December 17, 2024
    Assignee: LG Electronics Inc.
    Inventors: Ki Hyun Park, Gi Young Kim, Seung-Jin Oh, Chang Woan Yang, Jeong Wook Kang, Deok Eun Kang
  • 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: 20240404570
    Abstract: A method of training a memory device is provided. In first to third DCA training steps, a score for each of first to third DCA code combinations is calculated based on an eye window size of a data signal, and in response to a tie occurring among scores, a DCA code combination is selected based on the sum of an even-eye window minimum value and an odd-eye window minimum value of the data signal.
    Type: Application
    Filed: February 19, 2024
    Publication date: December 5, 2024
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Ki-Seok PARK, Do-Han KIM, Minsu BAE, Chang-Hyun BAE, Young-Hoon SON, Hye-Seung YU, Yoenhwa LEE, Daihyun LIM, Insu CHOI, Kideok HAN
  • Publication number: 20240405898
    Abstract: A radio frequency (RF) test device such as a spectrum analyzer may include an RF attenuator to attenuate a received RF signal; a mixer to down-convert the attenuated RF signal; an IF attenuator to attenuate the down-converted signal; an analog-to-digital converter (ADC) to digitize the attenuated, down-converted signal; and a processor, which may select attenuation values for one or more of the RF attenuator and the IF attenuator based on an error magnitude vector (EVM) analysis, an RF signal type, and a signal level at an input of the ADC. The processor may use a look-up table for the selection. Initial attenuation values may be selected based on an expected RF signal type, RF signal frequency, or RF signal bandwidth. The attenuation values may also be selected in an iterative manner stepping the attenuation values up or down.
    Type: Application
    Filed: August 12, 2024
    Publication date: December 5, 2024
    Applicant: VIAVI SOLUTIONS INC.
    Inventors: Bon-Jin KU, Seung-Gon HONG, Chang-Hyun PARK
  • Publication number: 20240393705
    Abstract: Disclosed is a substrate processing apparatus in which weight of a buffer module may be reduced compared to the apparatus in the related art.
    Type: Application
    Filed: April 18, 2024
    Publication date: November 28, 2024
    Applicant: SEMES CO., LTD.
    Inventors: Sang Hyun PARK, Seung Hwan LEE, Su Jin AHN, Geon Yup LIM, Jin Ki SHIN, Dong Hoon KANG, Hyun Soo KIM, Kwang Soo KIM, Chang Suk OH, Young Jun LEE
  • Publication number: 20240386921
    Abstract: A memory module includes a plurality of memory devices. Each of the plurality of memory devices includes a plurality of data input/output pads, a plurality of on-die termination (ODT) circuits each including one or more resistors, a plurality of transceiver circuits each including one or more transmission drivers and one or more reception buffers, and a plurality of equalizer circuits each including one or more inductors. Each of the plurality of equalizer circuits is connected to one of the plurality of data input/output pads, one of the plurality of ODT circuits, and one of the plurality of transceiver circuits. Each of the one or more transmission drivers drives a node of one of the plurality of data input/output pads. Inductances of the one or more inductors have individual values which are based on a driver strength of each of the one or more transmission drivers.
    Type: Application
    Filed: January 16, 2024
    Publication date: November 21, 2024
    Inventors: Jin Kwan PARK, Daehyun KWON, JANG HOO KIM, CHANG-HYUN BAE, YOO-CHANG SUNG, HYE-SEUNG YU
  • Publication number: 20240376601
    Abstract: The present disclosure relates to a thin film forming method, and more particularly, to a thin film forming method for forming a gallium nitride thin film. In accordance with an exemplary embodiment, a thin film forming method includes: loading a substrate into a process space of a chamber; and forming a gallium nitride thin film on the substrate, and the forming of the gallium nitride thin film includes: supplying a source gas containing gallium onto the substrate; supplying a reactant gas containing nitrogen onto the substrate; and activating and supplying a post-treatment gas containing hydrogen onto the substrate.
    Type: Application
    Filed: March 11, 2022
    Publication date: November 14, 2024
    Inventors: Jeong HEO, Duck Ho KIM, Yong Hyun KIM, Chang Su MHA, Chang Kyun PARK, Yong Hyun LEE, Chul Joo HWANG
  • Publication number: 20240375469
    Abstract: A vehicle body structure capable of modular assembly includes a chassis frame extending from a body frame forming a vehicle body. A corner module is fastened to a side portion of the chassis frame. The corner module includes a knuckle fastened to a wheel, an upper arm positioned between a top end portion of the knuckle and a module bracket mounted on the chassis frame, and an elastic member mounted between the module bracket and a bottom end portion of the knuckle.
    Type: Application
    Filed: December 6, 2023
    Publication date: November 14, 2024
    Applicants: Hyundai Motor Company, Kia Corporation, Inha University Research and Business Foundation
    Inventors: Do Hyun KONG, Jeong Hwan PARK, Chang Seop AN, Jae Young KANG, Dong Woo SEO, Hui Seung YUN
  • Publication number: 20240380128
    Abstract: An antenna module is provided and includes a flexible circuit having a first antenna feed and a second antenna feed. The antenna module includes a ground plane. The antenna module includes a first antenna element coupled to the first antenna feed. The first antenna element includes a first ground short stub coupled to the ground plane. The first antenna element includes a first radiating element defining an omnidirectional radiation pattern. The first radiating element includes a first main segment extending along a first arcuate path. The antenna module includes a second antenna element coupled to the second antenna feed. The second antenna element includes a second ground short stub coupled to the ground plane. The second antenna element includes a second radiating element defining an omnidirectional radiation pattern. The second radiating element includes a second main segment extending along a second arcuate path oriented parallel to the first arcuate path.
    Type: Application
    Filed: March 18, 2024
    Publication date: November 14, 2024
    Inventors: Chang Hyun Lee, Kiran Vanjani, Xing Yun, Jung-Hoon Kim, Dong Wook Park
  • Patent number: 12134722
    Abstract: Disclosed is a plasma etching method including a first step of providing a mixed gas containing argon gas and vaporized 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether having a molecular structure of a following Chemical Formula 1 to a plasma chamber in which an etching target is disposed; and a second step of etching the etching target using plasma generated from the mixed gas:
    Type: Grant
    Filed: June 1, 2020
    Date of Patent: November 5, 2024
    Assignee: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Chang-Koo Kim, Jun-Hyun Kim, Jin-Su Park
  • Patent number: 12136620
    Abstract: Provided are optical devices and systems fabricated, at least in part, via printing-based assembly and integration of device components. In specific embodiments the present invention provides light emitting systems, light collecting systems, light sensing systems and photovoltaic systems comprising printable semiconductor elements, including large area, high performance macroelectronic devices. Optical systems of the present invention comprise semiconductor elements assembled, organized and/or integrated with other device components via printing techniques that exhibit performance characteristics and functionality comparable to single crystalline semiconductor based devices fabricated using conventional high temperature processing methods. Optical systems of the present invention have device geometries and configurations, such as form factors, component densities, and component positions, accessed by printing that provide a range of useful device functionalities.
    Type: Grant
    Filed: March 9, 2022
    Date of Patent: November 5, 2024
    Assignees: The Board of Trustees of the University of Illinois, X-Celeprint Limited
    Inventors: John A. Rogers, Ralph Nuzzo, Matthew Meitl, Etienne Menard, Alfred Baca, Michael Motala, Jong-Hyun Ahn, Sang-Il Park, Chang-Jae Yu, Heung Cho Ko, Mark Stoykovich, Jongseung Yoon
  • Publication number: 20240360265
    Abstract: A multiblock copolymer, a method for preparing same, and a thermoplastic resin composition comprising polypropylene and the multiblock copolymer are described herein. The block copolymer has excellent processability and excellent compatibility with polypropylene, and the thermoplastic resin composition of the present disclosure using the same shows excellent low temperature impact strength and may be usefully used as a thermoplastic resin composition for the manufacture of a product requiring high impact resistance such as automotive parts.
    Type: Application
    Filed: September 30, 2022
    Publication date: October 31, 2024
    Applicant: LG Chem, Ltd.
    Inventors: Ji Hyun Park, Jung Won Park, Chang Jong Kim, Eun Ji Shin, Seok Pil Sa, Seul Ki Im, Hyun Mo Lee, Yun Kon Kim
  • Publication number: 20240361689
    Abstract: a photosensitive resin composition, a photosensitive resin layer, and a color filter manufactured using the same, the photosensitive resin composition includes a colorant; a photopolymerizable compound; a photopolymerization initiator; a binder resin; and a solvent; wherein the colorant includes a pigment, a dispersant, and a dispersion aid represented by Chemical Formula 1:
    Type: Application
    Filed: October 23, 2023
    Publication date: October 31, 2024
    Inventors: Heejo MOON, Baek Soung PARK, Juho JUNG, Chang-Hyun KWON, Kwangwon SEO