Patents by Inventor Sub Chung

Sub Chung 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: 20240139808
    Abstract: The present invention relates to a method for manufacturing a labyrinth seal for a turbine through the additive manufacturing of martensitic stainless steel using 3D printing, the method including the steps of: making a ring-shaped body of the labyrinth seal by means of centrifugal casting or a ring mill and a labyrinth part protruding from one surface of the ring-shaped body of the labyrinth seal by means of the 3D printing; and depositing a bonding layer onto top of the ring-shaped body to improve a bonding force between the ring-shaped body and the labyrinth part, the bonding layer having a composition similar to the composition of the metal powder or metal wire used in the 3D printing.
    Type: Application
    Filed: July 17, 2023
    Publication date: May 2, 2024
    Inventors: Hyun Ki KANG, Sam Sub BYUN, Taek Ho CHUNG
  • Publication number: 20240117749
    Abstract: A method of manufacturing a labyrinth sealing device mounted between a diaphragm and a turbine rotor of a turbine to induce smooth rotation of the turbine rotor and prevent a leakage of gas by minimizing friction is presented. A labyrinth sealing device includes a ring-shaped body and a labyrinth part protruding from one surface of the ring-shaped body. The ring-shaped body is manufactured by centrifugal casting or ring mill, and the labyrinth part is manufactured by 3D printing.
    Type: Application
    Filed: February 3, 2023
    Publication date: April 11, 2024
    Inventors: Hyun Ki KANG, Taek Ho CHUNG, Sam Sub BYUN
  • Publication number: 20230373271
    Abstract: The present invention relates to a heat management system having performance improved by reducing a distance between components constituting a refrigerant module and minimizing a pressure loss of a refrigerant, the heat management system including: a first heat exchanger heat-exchanging a heat exchange medium flowing thereinto from a compressor; a first expansion valve expanding the heat exchange medium flowing thereinto from the first heat exchanger and transferring the expanded heat exchange medium to a condenser; a second expansion valve expanding the heat exchange medium flowing thereinto from the condenser; a second heat exchanger heat-exchanging the heat exchange medium flowing thereinto from the second expansion valve with a heat-generating component; an accumulator storing the heat exchange medium flowing thereinto from the second heat exchanger; and an internal heat exchanger heat-exchanging the heat exchange medium discharged from the condenser with a heat exchange medium discharged from an evaporat
    Type: Application
    Filed: November 1, 2021
    Publication date: November 23, 2023
    Inventors: Jae-Chun YOU, Yochan MIN, Yun Sub CHUNG
  • Patent number: 11305611
    Abstract: An air-conditioning apparatus for a vehicle may include a radiator module; a refrigerant module; a hot portion for heat-exchanging with a condenser and a heater core of an internal air-conditioning module; a cold portion for heat-exchanging with an evaporator and a cooling core of the internal air-conditioning module; an electric portion for heat-exchanging with an electric component; a battery portion for heat-exchanging with a high-voltage battery; a connection module for connecting the hot portion, the electric portion, or the battery portion to any one or more radiators among a first radiator, a second radiator, and a third radiator; and a control unit configured of controlling the operations of a compressor and a valve.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: April 19, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Hanon Systems
    Inventors: Man Ju Oh, Sang Shin Lee, Jae Woong Kim, So La Chung, Yun Sub Chung, Gum Bae Choi
  • Patent number: 11192425
    Abstract: An integrated thermal management module may include a first pump for flowing coolant of an indoor heating line for connecting a first heat exchanger heat-exchanged with a condenser of a refrigerant line and an indoor air-conditioning heating core, a second pump for flowing coolant of an indoor cooling line for connecting a second heat exchanger heat-exchanged with an evaporator of a refrigerant line and an indoor air-conditioning cooling core, a fourth pump for flowing coolant of a battery line for connecting a high-voltage battery core and a third radiator, a first valve simultaneously connected to a second radiator line for connecting the first heat exchanger and a second radiator, the indoor heating line, and the battery line to change flow direction of the coolant, and a second valve simultaneously connected to the indoor cooling line and the battery line to change flow direction of the coolant.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: December 7, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Hanon Systems
    Inventors: Man Ju Oh, Sang Shin Lee, Jae Woong Kim, So La Chung, Yun Sub Chung, Gum Bae Choi
  • Patent number: 11192429
    Abstract: A thermal management system for a vehicle can efficiently manage energy required for interior air-conditioning and cooling/heating of a battery in the automotive thermal management field.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: December 7, 2021
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, HANON SYSTEMS
    Inventors: Man Ju Oh, Sang Shin Lee, Jae Woong Kim, So La Chung, Yun Sub Chung, Gum Bae Choi
  • Patent number: 11173769
    Abstract: A thermal management system for a vehicle, is configured for efficiently managing the energy necessary for the indoor air-conditioning, the cooling of an electric part, or the cooling and heating of a battery in the field of the thermal management for a vehicle.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: November 16, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Hanon Systems
    Inventors: Man Ju Oh, Sang Shin Lee, Jae Woong Kim, So La Chung, Yun Sub Chung, Gum Bae Choi
  • Patent number: 10960730
    Abstract: The present invention relates to a vehicle radiation heater being configured to perform heating by directly emitting radiant heat toward a passenger at an early stage of starting of a vehicle in winter. The vehicle radiation heater according to the present invention can be simple in structure, thereby being easy to manufacture, can quickly emit high-temperature radiant heat over the entire area of the heater, thereby enhancing rapid and comforting heating effects, and can maintain a constant temperature, thereby preventing a risk of overheating.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: March 30, 2021
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, HANON SYSTEMS
    Inventors: Dong Hoon Oh, Kil Sang Jang, Soo Doo Park, Tae Yong Park, Yun Sub Chung, Man Ju Oh, Jae Woong Kim, So La Chung
  • Publication number: 20210053415
    Abstract: An integrated thermal management module may include a first pump for flowing coolant of an indoor heating line for connecting a first heat exchanger heat-exchanged with a condenser of a refrigerant line and an indoor air-conditioning heating core, a second pump for flowing coolant of an indoor cooling line for connecting a second heat exchanger heat-exchanged with an evaporator of a refrigerant line and an indoor air-conditioning cooling core, a fourth pump for flowing coolant of a battery line for connecting a high-voltage battery core and a third radiator, a first valve simultaneously connected to a second radiator line for connecting the first heat exchanger and a second radiator, the indoor heating line, and the battery line to change flow direction of the coolant, and a second valve simultaneously connected to the indoor cooling line and the battery line to change flow direction of the coolant.
    Type: Application
    Filed: March 27, 2020
    Publication date: February 25, 2021
    Applicants: Hyundai Motor Company, Kia Motors Corporation, Hanon Systems
    Inventors: Man Ju OH, Sang Shin LEE, Jae Woong KIM, So La CHUNG, Yun Sub CHUNG, Gum Bae CHOI
  • Publication number: 20200353796
    Abstract: A thermal management system for a vehicle, is configured for efficiently managing the energy necessary for the indoor air-conditioning, the cooling of an electric part, or the cooling and heating of a battery in the field of the thermal management for a vehicle.
    Type: Application
    Filed: October 15, 2019
    Publication date: November 12, 2020
    Applicants: Hyundai Motor Company, Kia Motors Corporation, Hanon Systems
    Inventors: Man Ju OH, Sang Shin LEE, Jae Woong KIM, So La CHUNG, Yun Sub CHUNG, Gum Bae CHOI
  • Publication number: 20200346523
    Abstract: A thermal management system for a vehicle can efficiently manage energy required for interior air-conditioning and cooling/heating of a battery in the automotive thermal management field.
    Type: Application
    Filed: September 11, 2019
    Publication date: November 5, 2020
    Inventors: Man Ju Oh, Sang Shin Lee, Jae Woong Kim, So La Chung, Yun Sub Chung, Gum Bae Choi
  • Publication number: 20200338956
    Abstract: An air-conditioning apparatus for a vehicle may include a radiator module; a refrigerant module; a hot portion for heat-exchanging with a condenser and a heater core of an internal air-conditioning module; a cold portion for heat-exchanging with an evaporator and a cooling core of the internal air-conditioning module; an electric portion for heat-exchanging with an electric component; a battery portion for heat-exchanging with a high-voltage battery; a connection module for connecting the hot portion, the electric portion, or the battery portion to any one or more radiators among a first radiator, a second radiator, and a third radiator; and a control unit configured of controlling the operations of a compressor and a valve.
    Type: Application
    Filed: October 15, 2019
    Publication date: October 29, 2020
    Applicants: Hyundai Motor Company, Kia Motors Corporation, Hanon Systems
    Inventors: Man Ju OH, Sang Shin LEE, Jae Woong KIM, So La CHUNG, Yun Sub CHUNG, Gum Bae CHOI
  • Patent number: 10704790
    Abstract: A movable air conditioner includes an air conditioner main body, an air conditioning unit installed in the air conditioner main body and configured to generate a cold air or a warm air, a control unit configured to control the air conditioning unit, and an attachment/detachment unit configured to detachably attach the air conditioning unit to the air conditioner main body so that the air conditioning unit can be optionally detached from the air conditioner main body and used independently.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: July 7, 2020
    Assignee: HANON SYSTEMS
    Inventors: Yeon Seob Kim, Dong Woo Kim, Jeong Hoon Lee, Yun Sub Chung
  • Publication number: 20190072293
    Abstract: A movable air conditioner includes an air conditioner main body, an air conditioning unit installed in the air conditioner main body and configured to generate a cold air or a warm air, a control unit configured to control the air conditioning unit, and an attachment/detachment unit configured to detachably attach the air conditioning unit to the air conditioner main body so that the air conditioning unit can be optionally detached from the air conditioner main body and used independently.
    Type: Application
    Filed: May 19, 2017
    Publication date: March 7, 2019
    Inventors: Yeon Seob Kim, Dong Woo Kim, Jeong Hoon Lee, Yun Sub Chung
  • Publication number: 20180257456
    Abstract: The present invention relates to a vehicle radiation heater being configured to perform heating by directly emitting radiant heat toward a passenger at an early stage of starting of a vehicle in winter. The vehicle radiation heater according to the present invention can be simple in structure, thereby being easy to manufacture, can quickly emit high-temperature radiant heat over the entire area of the heater, thereby enhancing rapid and comforting heating effects, and can maintain a constant temperature, thereby preventing a risk of overheating.
    Type: Application
    Filed: September 8, 2016
    Publication date: September 13, 2018
    Inventors: Dong Hoon OH, Kil Sang JANG, Soo Doo PARK, Tae Yong PARK, Yun Sub CHUNG, Man Ju OH, Jae Woong KIM, So La CHUNG
  • Publication number: 20150361575
    Abstract: The present application relates to a method of surface-treating an aluminum material for dissipating heat, which is capable of increasing the radiation heat flux to thus enhance heat dissipation performance, and includes anodizing an aluminum material using an electrolyte composed of oxalic acid, and forming cobalt sulfide (CoS) in surface pores of the aluminum material thus sealing the surface of the aluminum material.
    Type: Application
    Filed: November 4, 2014
    Publication date: December 17, 2015
    Inventors: Ji Yong LEE, Cheol Ung LEE, Kwang Min YOON, Tae Ho JEONG, Dong Hyun KIM, Jung Hoon LEE, Won Sub CHUNG
  • Patent number: 8471354
    Abstract: An e-fuse structure includes an anode, a cathode, a fuse part connecting the anode and the cathode to each other, and a dielectric contacting the fuse part. The dielectric is configured to apply a stress to the fuse part, where the stress constructively acting on a migration effect of atoms constituting the fuse part. The migration effect is generated by electromigration and thermomirgration.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: June 25, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Deok-kee Kim, Soojung Hwang, Sang-Min Lee, Il-Sub Chung
  • Publication number: 20120312331
    Abstract: This invention relates to a method of preprocessing a magnesium alloy for electroplating, including pickling the magnesium alloy with an ethyleneglycol-nitric acid solution.
    Type: Application
    Filed: December 6, 2011
    Publication date: December 13, 2012
    Applicants: Pusan National University Industry-University Cooperation Foundation, HYUNDAI MOTOR COMPANY
    Inventors: Hyung Sop Yoon, Won Sub Chung, Jung Hoon Lee
  • Patent number: 7989520
    Abstract: The present invention relates to an antifouling paint composition which is pro-environmental because it does not contain organotin and copper compound which are the major causes of maritime environmental pollution, and has excellent inhibitory effect on the adhesion of marine organisms on the surface. The antifouling paint composition of the present invention characteristically comprises a resin, tourmaline and an alkali metal, an alkali earth metal and/or an oxide thereof.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: August 2, 2011
    Assignee: Pusan National University Industry-University Cooperation Foundation
    Inventors: Ho Hwan Chun, Inwon Lee, Hyun Park, Won Sub Chung, Nam-Ju Jo
  • Publication number: 20110147724
    Abstract: There is provided an organic thin film transistor and a method of manufacturing the same. The organic thin film transistor includes: an insulating substrate on which a plurality of barrier ribs and a plurality of grooves partitioned by the barrier ribs are formed; source and drain electrodes each formed on the grooves spaced apart from each other among the plurality of grooves; a gate electrode formed on the groove between the source and drain electrodes; an opening formed by etching the barrier ribs between the source electrode and the gate electrode and between the gate electrode and the drain electrode; a gate insulating film formed on the opening; and an organic semiconductor layer formed on the gate insulating film. The organic thin film transistor is capable of mass production and has excellent electrical characteristics.
    Type: Application
    Filed: December 21, 2010
    Publication date: June 23, 2011
    Applicants: SAMSUNG ELECTRO-MECHANICS CO., LTD., SUNGKYUNKWAN UNIVERSITY Foundation for Corporate Collaboration
    Inventors: Sang Won HA, Il Sub Chung, Jin Hee Heo, Kyo Hyeok Kim, Jung Min Kwon, Kyu Hag Eum, Sang Il Yim, Chang Sup Ryu