Patents by Inventor Cheol Lee

Cheol Lee 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: 20220190484
    Abstract: An antenna apparatus includes a ground plane, a plurality of first patch antenna patterns arranged on a level higher than the ground plane and each configured to transmit and/or receive a first radio frequency signal of a first frequency, a plurality of second patch antenna patterns arranged on a level higher than the ground plane and each having a size smaller than a size of each of the first patch antenna patterns, wherein the plurality of second patch antenna patterns include at least one feed patch antenna pattern configured to transmit and/or receive a second radio frequency signal of a second frequency different from the first frequency, and at least one dummy patch antenna pattern which is not fed any of the first and second radio frequency signals.
    Type: Application
    Filed: March 7, 2022
    Publication date: June 16, 2022
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Won Cheol LEE, Jeong Ki RYOO, Nam Ki KIM, Myeong Woo HAN, Sang Hyun KIM
  • Patent number: 11353023
    Abstract: Disclosed is a pump system for a semiconductor chamber includes a housing having a front chamber and a rear chamber, a roots-type rotor provided to the front chamber of the housing, a screw-type rotor provided to the rear chamber, a shaft member coupled through the roots-type rotor and the screw-type rotor, and a driving motor provided to the outside of the housing in such a way as to be axially connected to the shaft member to provide power for driving the rotors. A fluid pipe is provided to the outside of the housing to connect the front chamber and the rear chamber. The fluid pipe is provided with a heater and/or a cooler to heat or cool the fluid flowing through the fluid pipe.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: June 7, 2022
    Assignee: PLAN CO., LTD
    Inventor: In Cheol Lee
  • Publication number: 20220165219
    Abstract: The present disclosure discloses a sensing circuit and a source driver including the same, capable of decreasing influence on the performance of an integrator according to a panel load and reducing a chip area by excluding a feedback capacitor of the integrator. The sensing circuit may convert an input current, received from a display panel, into an output current having linearity and an amount of current smaller than the input current.
    Type: Application
    Filed: November 22, 2021
    Publication date: May 26, 2022
    Applicant: LX Semicon Co., Ltd.
    Inventors: Taiming PIAO, Young Bok KIM, Won KIM, Byeon Cheol LEE
  • Patent number: 11340013
    Abstract: Provided are an apparatus and method for liquefying natural gas. The apparatus for liquefying natural gas includes a gas compressor configured to receive and compress the natural gas from a natural gas feed stream, a heat exchanging unit configured to cool a high-pressure natural gas passing through the gas compressor through heat exchange, an expansion valve configured to expand the cooled natural gas passing through the heat exchanging unit, a hold-up drum configured to phase-separate a gas-liquid mixture produced by passing through the expansion valve and divide the gas-liquid mixture into a liquefied natural gas and a cryogenic recycle gas having nitrogen content greater than that of the liquefied natural gas so as to discharge the liquefied natural gas and the cryogenic recycle gas, and a bypass line configured to provide the recycle gas discharged from the hold-up drum to the heat exchanging unit.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: May 24, 2022
    Assignees: SUNG-IL ENCARE Co., Ltd., KOGAS-TECH, Korea Institute of Industrial Technology
    Inventors: Jang-ik Park, Ta Kwan Woo, Taehee Kang, Heeseung Na, Hweeung Kwon, Gaehyun Nam, Young Cheol Lee, Dong-Ha Lim
  • Patent number: 11342663
    Abstract: An antenna apparatus includes: a first dipole antenna pattern; a feed line electrically connected to the first dipole antenna pattern; and a first ground plane disposed rearward of the first dipole antenna pattern and spaced apart from the first dipole antenna pattern; wherein the first ground plane forms a step-type cavity, and width of a rear portion of the step-type cavity is different from a width of a front portion of the step-type cavity.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: May 24, 2022
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Nam Ki Kim, Jeong Ki Ryoo, Kyu Bum Han, Young Kyoon Im, Won Cheol Lee
  • Publication number: 20220155685
    Abstract: The present invention provides a photosensitive resin composition capable of forming a cured film having excellent resolution and chemical resistance upon curing at low temperatures and to a cured film prepared therefrom. In the photosensitive resin composition of the present invention, the first copolymer and the second copolymer are used as a binder to introduce appropriate amounts of a succinate group and an epoxy group to the composition. Thus, it is possible to prepare a cured film that can be sufficiently cured even at low temperatures by enhancing the degree of curing and that has excellent resolution through the control of the developability and enhancements in the crosslinking reaction. Further, the composition has enhanced chemical resistance to chemical solvents or cleaning solvents, whereby deformation of the cured film can be prevented.
    Type: Application
    Filed: November 12, 2021
    Publication date: May 19, 2022
    Inventors: Jin Kwon, Kyu-Cheol Lee
  • Publication number: 20220148358
    Abstract: Security check methods and systems over a user on a vehicle may be provided. The security check method including checking an allowed security right to a destination of a vehicle for entry, detecting a security right of a user on the vehicle, and performing a security process related to getting off the vehicle, based on the security right of the user and the allowed security right may be provided.
    Type: Application
    Filed: October 29, 2021
    Publication date: May 12, 2022
    Applicant: NAVER LABS CORPORATION
    Inventors: Ye Sook IM, Hyeon Cheol LEE, Da Gyeong LEE
  • Publication number: 20220141057
    Abstract: Provided are a data receiving device and a corresponding method for receiving the data. The data receiving device comprises a path control logic configured to store L symbol paths, where L is a natural number equal to or greater than 2, L feedback filters configured to calculate L inter-symbol interferences (ISI) for the L symbol paths, respectively, L operators configured to remove the L inter-symbol interferences from an output of a feed-forward equalizer, and a path metric calculator configured to receive outputs of the L operators and calculate a path metric for each of the L symbol paths, wherein the path control logic is configured to select L values among the calculated path metrics for the L symbol paths to update the L symbol paths.
    Type: Application
    Filed: July 9, 2021
    Publication date: May 5, 2022
    Inventors: Chang Kyu Seol, Byung-Suk Woo, Su Cheol Lee
  • Patent number: 11322369
    Abstract: Disclosed is a powder protecting three-way valve for a semiconductor or flat panel display manufacturing apparatus, including: a valve casing including an inlet and a plurality of outlets; a rotating ball rotatably installed in the valve casing to control a flow direction of reaction by-product gas; a nitrogen gas supply member which receives nitrogen gas from an outside, guides a flow of the nitrogen gas using a guide path, and supplies the nitrogen gas into the valve casing to prevent a powder contained in the reaction by-product gas from accumulating in the valve casing; and a heating unit installed in the nitrogen gas supply member to heat the nitrogen gas passing through an interior of the nitrogen gas supply member. The nitrogen gas supply member is formed as a thin flat body pressed against one side surface of the valve casing and is integrally coupled to the valve casing.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: May 3, 2022
    Assignee: BOYA CO., LTD.
    Inventor: Jeong Cheol Lee
  • Patent number: 11306374
    Abstract: Provided is a high-strength aluminum alloy including 2.0 to 13.0% by weight of copper (Cu), 0.4 to 4.0% by weight of manganese (Mn), 0.4 to 2.0% by weight of iron (Fe), 6.0 to 10.0% by weight of silicon (Si), greater than 0.0% by weight and 7.0 or less % by weight of zinc (Zn), greater than 0.0% by weight and 2.0 or less % by weight of magnesium (Mg), greater than 0.0% by weight and 1.0 or less % by weight of chromium (Cr), greater than 0.0% by weight and 3.0 or less % by weight of nickel (Ni), greater than 0.0% by weight and 0.05 or less % by weight of production-induced impurities, and the balance of aluminum (Al).
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: April 19, 2022
    Assignee: GAM CO., LTD.
    Inventors: Jin Yeol Choi, Byung-Cheol Lee
  • Publication number: 20220114478
    Abstract: A system for enhancing a prediction model according to an embodiment includes a storage module configured to receive and store inference data for input data from a prediction model, a retraining module configured to train a retraining model using retraining data including the inference data, and a determination module configured to compare performances of the prediction model and the retraining model and replace the prediction model with the retraining model according to the comparison result.
    Type: Application
    Filed: October 27, 2020
    Publication date: April 14, 2022
    Inventors: Byung Yong SUNG, Chang Ju LEE, Jun Cheol LEE, Jong Sung KIM
  • Publication number: 20220111511
    Abstract: An embodiment joint structure for a robot includes an upper plate provided in an upper region, a link part coupled to a lower surface of the upper plate, wherein the link part includes a first link and a second link, and wherein the first link and the second link are provided close to one side of the upper plate with respect to a center of the lower surface of the upper plate, a support part coupled to the lower surface of the upper plate and configured to support the upper plate, wherein the support part is provided to be closer to the center of the lower surface of the upper plate than is the link part, and a motor part configured to provide power to the support part and the link part.
    Type: Application
    Filed: September 24, 2021
    Publication date: April 14, 2022
    Inventors: Seung Jun Woo, Byung Ho Yoon, Ki Hoon Nam, Byeong Cheol Lee
  • Patent number: 11303038
    Abstract: An antenna apparatus includes a ground plane, a plurality of first patch antenna patterns arranged on a level higher than the ground plane and each configured to transmit and/or receive a first radio frequency signal of a first frequency, a plurality of second patch antenna patterns arranged on a level higher than the ground plane and each having a size smaller than a size of each of the first patch antenna patterns, wherein the plurality of second patch antenna patterns include at least one feed patch antenna pattern configured to transmit and/or receive a second radio frequency signal of a second frequency different from the first frequency, and at least one dummy patch antenna pattern which is not fed any of the first and second radio frequency signals.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: April 12, 2022
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Won Cheol Lee, Jeong Ki Ryoo, Nam Ki Kim, Myeong Woo Han, Sang Hyun Kim
  • Patent number: 11296421
    Abstract: An antenna module includes: an IC package including an IC; first and second antenna portions including respective patch antenna patterns, respective feed vias connected to the respective patch antenna patterns, and respective dielectric layers surrounding the respective feed vias; and a connection member having an upper surface on which the first and second antenna portions are disposed and a lower surface on which the IC package is disposed, the connection member forming an electrical connection path between the IC and the feed via of the first antenna portion and an electrical connection path of the second antenna portion. The connection member includes a first region disposed between the IC package and the first antenna portion, a second region on which the second antenna portion is disposed, and a third region electrically connecting the first and second regions and being more flexible than the dielectric layer of the first antenna portion.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: April 5, 2022
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Myeong Woo Han, Ju Hyoung Park, Dae Ki Lim, Jeong Ki Ryoo, Won Cheol Lee, Nam Ki Kim
  • Publication number: 20220100090
    Abstract: The present invention relates to a colored photosensitive resin composition and to a light-shielding black matrix prepared therefrom. The colored photosensitive resin composition of the present invention is capable of providing a cured film that satisfies such characteristics as high light-shielding property and low reflectance at the same time by more effectively reducing the total reflectance, which is a smaller-the-better characteristic that should be satisfied as a light-shielding black matrix, while the optical density, resolution, leveling characteristics, visibility, and the like are maintained to be excellent. Thus, the light-shielding black matrix prepared from the composition can be advantageously used in liquid crystal displays and quantum dot displays.
    Type: Application
    Filed: December 13, 2021
    Publication date: March 31, 2022
    Inventors: Seung-Keun KIM, Kyu cheol LEE
  • Publication number: 20220104313
    Abstract: A 5G or pre-5G communication system is provided to support higher data transmission rates after 4G communication systems such as LTE. To support communication of a terminal that dually accesses a first radio access technology (RAT) communication system and a second RAT communication system, a session generation request message for transmitting traffic is received from a terminal. A target communication system that is to generate a data path with respect to the traffic from the first RAT communication system and the second RAT communication system is determined, the data path for the target communication system is configured, and information about the configured data path is transmitted to the terminal.
    Type: Application
    Filed: December 13, 2021
    Publication date: March 31, 2022
    Inventors: Jung-Shin PARK, Ki-Suk KWEON, Sang-Jun MOON, Ji-Cheol LEE, Jin-Sung LEE
  • Publication number: 20220097000
    Abstract: Disclosed is a system for treating exhaust fluid from semiconductor manufacturing equipment in which cleaning gases decomposed by a plastic apparatus alternately flow towards a front rotor region (a main rotor unit) and a rear rotor region (a subsidiary rotor unit) of a booster pump and then flow towards a dry pump, and thus uniformly react with process byproducts present throughout the whole area in a vacuum pump including the booster pump and the dry pump so as to improve removal efficiency of the process byproducts. Further, the retention time of the cleaning gases decomposed by the plasma apparatus in the vacuum pump is increased by adjusting the pressure in the pump with the rotational speed of a motor, and thus the reaction time of the cleaning gases with the process byproducts is increased, so as to further improve removal efficiency of the process byproducts, such as SiO2 powder.
    Type: Application
    Filed: July 28, 2021
    Publication date: March 31, 2022
    Applicant: PLAN CO., LTD
    Inventor: In Cheol Lee
  • Publication number: 20220101907
    Abstract: A power control circuit includes a power control signal generation circuit configured to generate a voltage control signal according to a deep sleep command for operating a semiconductor apparatus in a deep sleep mode; a voltage divider circuit having a division ratio that is changed according to the voltage control signal, and configured to generate a divided voltage by dividing an internal voltage at the changed division ratio; a comparator configured to generate a detection signal by comparing a reference voltage to the divided voltage; an oscillator configured to generate an oscillation signal according to the detection signal; and a pump configured to generate the internal voltage according to the oscillation signal.
    Type: Application
    Filed: December 14, 2021
    Publication date: March 31, 2022
    Inventors: Woongrae KIM, Byeong Cheol LEE, Se Won LEE
  • Patent number: 11282456
    Abstract: The present disclosure provides, in a pixel sensing, a technology in which a parasitic impedance formed in a sensing line does not affect an integrating circuit using a current mirror circuit coupled with an operational amplifier.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: March 22, 2022
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Taiming Piao, Young Bok Kim, Won Kim, Byeon Cheol Lee
  • Patent number: 11268205
    Abstract: Disclosed are an electroplating repair apparatus, an electroplating repair system having the same, and an operating system thereof. The apparatus includes a probe body extending a predefined length in a structure corresponding to an inner diameter part of a tube, an electroplating electrode attached to and surrounding an outer circumferential surface of the probe body, a sealing member attached to opposite end sides of the probe body to seal a target portion to be electroplated, and a solution supply line supplying a solution to the target portion through the inside of the probe body, wherein the apparatus has a structure capable of wholly repairing the inside of the tube including a sealing welding part and an expanded part.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: March 8, 2022
    Assignee: Doosan Heavy Industries & Construction Co. LTD
    Inventors: Seon Ho Lee, Min Gi Choi, Sang Cheol Lee