Patents by Inventor Woo-Hyung Choi

Woo-Hyung Choi 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: 20240140224
    Abstract: A charging cable for an electric vehicle includes a cable main body having a flat cross-section in a width direction thereof and partitioned into a plurality of internal regions. The charging cable includes terminal portions through which positive and negative power cables, a communication/sensor cable, a coolant flow channel, and a ground pass into the plurality of internal regions, respectively. The terminal portions are arranged in a row in the width direction of the cable main body.
    Type: Application
    Filed: March 3, 2023
    Publication date: May 2, 2024
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Woo Hyung Lee, Sang Jin Lee, Young Tae Choi, Kwang Min Oh, Ho Choi
  • Publication number: 20240131943
    Abstract: An apparatus for holding a cable for an electric vehicle charger includes a cable holding unit configured to restrict a charging cable extended and connected to a charging coupler, and to ascend or descend to predetermined positions, a housing unit mounted in a manner that is rotatable along a leftward-rightward direction, the cable holding unit being accommodated inside the housing unit, a driving unit configured to provide drive power for enabling the cable holding unit to ascend and descend and drive power for rotating the housing unit, and a control unit configured to control the driving unit in such a manner that the cabling holding unit and the housing unit are selectively driven when the charging coupler is removed from an electric vehicle charger or rests thereon.
    Type: Application
    Filed: February 6, 2023
    Publication date: April 25, 2024
    Inventors: Woo Hyung Lee, Su Hwan Cho, Young Tae Choi, Kwang Min Oh, Ho Choi
  • Patent number: 11955611
    Abstract: An equipment for inspecting a secondary battery is provided. The equipment includes a loading device on which a secondary battery is loaded in an upright position, and a side portion inspecting device which inspects a side portion of the secondary battery loaded on the loading device, wherein the side portion inspecting device comprises an elevation unit which lifts the secondary battery loaded on the loading device so as to be withdrawn out of the loading device and allows the secondary battery to return to its original position after a first period of time elapses and a side portion inspecting unit which captures an image of the side portion of the secondary battery, which is withdrawn out of the loading device by the elevation unit, thereby inspecting the side portion of the secondary battery.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: April 9, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Tae Young Kim, Dong Hyung Lee, Woo Young Choi, Sang Ho Nam
  • Publication number: 20240096594
    Abstract: Provided is a system for etching with a plasma present invention relates to a system. A system for etching with plasma comprises a source power module 11 for applying a RF power to an upper electrode 15; a bias power module 12 for applying a RF power to a lower electrode; and a bias DC power module 13 for applying a bias DC power to a wafer 18.
    Type: Application
    Filed: September 19, 2022
    Publication date: March 21, 2024
    Inventors: Woo Hyung CHOI, Sang Woo LEE
  • Patent number: 11841284
    Abstract: Provided is a particle trapping apparatus for preventing an error of a pressure measurement. A particle trapping apparatus for preventing an error of a pressure measurement includes a pressure-measuring means; a measuring pipe for connecting the pressure-measuring means to a processing chamber; and a trapping means for capturing particles in a gas flowing through the measuring pipe, wherein the trapping means is coupled to the measuring pipe or is a portion of the measuring pipe.
    Type: Grant
    Filed: March 24, 2022
    Date of Patent: December 12, 2023
    Assignee: ADAPTIVE PLASMA TECHNOLOGY CORP.
    Inventors: Woo Hyung Choi, Sang Woo Lee, Hwi Gon Jang, Gyoung Ho Kwon
  • Publication number: 20230324246
    Abstract: Provided is a particle trapping apparatus for preventing an error of a pressure measurement. A particle trapping apparatus for preventing an error of a pressure measurement includes a pressure-measuring means; a measuring pipe for connecting the pressure-measuring means to a processing chamber; and a trapping means for capturing particles in a gas flowing through the measuring pipe, wherein the trapping means is coupled to the measuring pipe or is a portion of the measuring pipe.
    Type: Application
    Filed: March 24, 2022
    Publication date: October 12, 2023
    Inventors: Woo Hyung CHOI, Sang Woo LEE, Hwi Gon JANG, Gyoung Ho KWON
  • Publication number: 20230187251
    Abstract: Provided is an electrostatic chuck with multiple heater zones. The electrostatic chuck with multiple heater zones comprises multiple micro heater zones; a switch module having each switching means connected to each micro heater zone; and a switch controlling module for controlling an operation of the switch module, wherein each micro heater zone can be heated individually by a corresponding heating element, and each partial area of a wafer secured on the electrostatic chuck is heated independently by each micro heater zone.
    Type: Application
    Filed: December 15, 2021
    Publication date: June 15, 2023
    Inventors: Woo Hyung CHOI, Sang Woo LEE
  • Patent number: 11538702
    Abstract: Provided is an apparatus for monitoring an exchanging process of a semiconductor part and a method for the same. The apparatus comprises finger having a structure capable of loading the part and transferred by a robot for exchanging; and at least one image obtaining means coupled to the finger and obtaining an image of an exchanging position.
    Type: Grant
    Filed: January 4, 2021
    Date of Patent: December 27, 2022
    Assignee: ADAPTIVE PLASMA TECHNOLOGY CORP.
    Inventors: Woo Hyung Choi, Sang Woo Lee
  • Publication number: 20220216082
    Abstract: Provided is an apparatus for monitoring an exchanging process of a semiconductor part and a method for the same. The apparatus comprises finger having a structure capable of loading the part and transferred by a robot for exchanging; and at least one image obtaining means coupled to the finger and obtaining an image of an exchanging position.
    Type: Application
    Filed: January 4, 2021
    Publication date: July 7, 2022
    Inventors: Woo Hyung CHOI, Sang Woo LEE
  • Patent number: 11315764
    Abstract: Provided is a structure variable type of a plasma source coil and a method for controlling the same. The plasma source coil comprises a plurality of coil branches extending in a spiral shape based on a central part, wherein at least one coil branch has a structure in which the extending direction or a tilting level can be adjusted.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: April 26, 2022
    Assignee: ADAPTIVE PLASMA TECHNOLOGY CORP.
    Inventors: Woo Hyung Choi, Sang Woo Lee
  • Publication number: 20210335583
    Abstract: Provided is a structure variable type of a plasma source coil and a method for controlling the same. The plasma source coil comprises a plurality of coil branches extending in a spiral shape based on a central part, wherein at least one coil branch has a structure in which the extending direction or a tilting level can be adjusted.
    Type: Application
    Filed: September 9, 2020
    Publication date: October 28, 2021
    Inventors: Woo Hyung CHOI, Sang Woo LEE
  • Publication number: 20210335651
    Abstract: Provided is an apparatus for exchanging an article of a semi-conductor process and a method for exchanging the article using the same. The apparatus for exchanging an article in a semiconductor process, comprising: a loading unit located at a finger coupled to a transferring means for loading the article'an operation controlling unit displaced at the loading unit and having a communicating means; and at least one vision unit.
    Type: Application
    Filed: September 9, 2020
    Publication date: October 28, 2021
    Inventors: Woo Hyung CHOI, Sang Woo LEE
  • Patent number: 7583953
    Abstract: A device and a method of subdividing data service charge in mobile communication network is disclosed. In one embodiment, the method includes receiving a billing initiation request signal from a wireless data service device (either an interworking function (IWF) unit or a packet data serving node (PDSN)), producing a usage-amount data for the subscriber based on at least one of the type and amount of data being transmitted through the wireless data service device on the mobile communication network. The method also includes, responsive to a billing end request signal, received from the wireless data service device, transferring a billing request signal, requesting to bill the subscriber for the usage-amount data, to an authentication, authorization and accounting (AAA) unit. In one embodiment, the above method can apply to a graduated billing for the each service group in the mobile communication network.
    Type: Grant
    Filed: August 10, 2005
    Date of Patent: September 1, 2009
    Assignee: KT Corporation
    Inventors: Woo-Hyung Choi, Mi-Na Oh, Sung-Chul Kim, Sung-Il Jin
  • Publication number: 20060052083
    Abstract: A device and a method of subdividing data service charge in mobile communication network is disclosed. In one embodiment, the method includes receiving a billing initiation request signal from a wireless data service device (either an interworking function (IWF) unit or a packet data serving node (PDSN)), producing a usage-amount data for the subscriber based on at least one of the type and amount of data being transmitted through the wireless data service device on the mobile communication network. The method also includes, responsive to a billing end request signal, received from the wireless data service device, transferring a billing request signal, requesting to bill the subscriber for the usage-amount data, to an authentication, authorization and accounting (AAA) unit. In one embodiment, the above method can apply to a graduated billing for the each service group in the mobile communication network.
    Type: Application
    Filed: August 10, 2005
    Publication date: March 9, 2006
    Inventors: Woo-Hyung Choi, Mi-Na Oh, Sung-Chul Kim, Sung-Il Jin