Patents by Inventor Myung-jin Lee

Myung-jin 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: 20240072283
    Abstract: A fuel cell vehicle includes a cell stack, a DC level converter, an output unit, a first switching unit disposed between a positive output terminal of the DC level converter and a positive input terminal of the output unit, a second switching unit disposed between a negative output terminal of the DC level converter and a negative input terminal of the output unit, a resistor and a third switching unit connected to each other in series between the positive output terminal of the DC level converter and the negative output terminal of the DC level converter, a fourth switching unit disposed between a contact point between the resistor and the third switching unit and the positive input terminal of the output unit, and a controller for controlling switching operation of the first, second, third and fourth switching units according to an operation mode.
    Type: Application
    Filed: July 3, 2023
    Publication date: February 29, 2024
    Applicants: Hyundai Motor Company, KIA CORPORATION
    Inventors: Ki Wook Ohm, Woo Young Lee, Jong Jun Lee, Myung Jin Kim, Sae Kwon Chang, Yoon Tae Kim
  • Publication number: 20230286778
    Abstract: The present invention provides a tower lift. The tower lift includes: a rail module extended in a vertical direction; and a carriage module provided to be movable by a magnetic levitation method along the rail module, in which in the carriage module, a braking unit which brakes falling of the carriage module when power driving the tower lift is cut is installed.
    Type: Application
    Filed: March 11, 2022
    Publication date: September 14, 2023
    Applicant: SEMES CO., LTD.
    Inventors: Myung Jin LEE, Sang-Oh KIM, Hee Jae BYUN, Na Hyun LEE
  • Publication number: 20230209959
    Abstract: A display device includes: a substrate including a first emission area, a second emission area, and a third emission area; a first wavelength conversion pattern overlapping the first emission area; a second wavelength conversion pattern overlapping the second emission area; and a light-transmitting pattern overlapping the third emission area, wherein the first wavelength conversion pattern includes first wavelength shifters configured to convert a first light into a second light, and first scatterers, the second wavelength conversion pattern includes second wavelength shifters configured to convert the first light into a third light, and second scatterers, and a ratio between a concentration of the first wavelength shifters and a concentration of the second wavelength shifters is 1:1.1 to 1:1.3.
    Type: Application
    Filed: September 21, 2022
    Publication date: June 29, 2023
    Inventors: Young Soo KWON, Sun Young KWON, Min Seok KIM, Bu Yong KIM, Song Yi KIM, Soo Dong KIM, Su Jin KIM, Jin Won KIM, Da Hye PARK, Dong Gyu BAECK, Hye Jin PAEK, Tae Young SONG, Keun Chan OH, Won Gap YOON, Ki Heon LEE, Myung Jin LEE, Hyeok Jin LEE, Woo Man JI, Ho Yeon JI, Yong Seok CHOI
  • Publication number: 20230188147
    Abstract: A noise filtering circuit, a digital to analog converter and an electronic device are provided. The noise filtering circuit comprises a first amplifier configured to receive a bias voltage at a first input terminal, receive a bias output voltage at a second input terminal though a feedback path, and compensate for a difference between the bias voltage and the bias output voltage; a first transistor connected to an output of the first amplifier and having a gate to which an off-voltage is applied; a first capacitor connected to the first transistor; a second capacitor connected to the output of the first amplifier; a second transistor connected to the second capacitor and having a gate to which an off-voltage is applied, and a second amplifier having an input terminal connected to the first capacitor and a second input terminal connected to the second transistor.
    Type: Application
    Filed: July 28, 2022
    Publication date: June 15, 2023
    Inventors: Moo Yeol CHOI, Young Hyun YOON, Hyun Sun SHIM, Myung-Jin LEE
  • Publication number: 20230166925
    Abstract: A tower lift includes a main frame, a first carriage module and a second carriage module connected with each other inside the main frame at left and right sides of the main frame, respectively, having the same weight as each other, and configured to be moved in a vertical direction, and a driving module installed on the main frame and configured to move the first carriage module and the second carriage module in the vertical direction.
    Type: Application
    Filed: May 22, 2022
    Publication date: June 1, 2023
    Applicant: SEMES CO., LTD.
    Inventors: Hee Jae BYUN, Sang Oh KIM, Na Hyun LEE, Myung Jin LEE
  • Publication number: 20230139303
    Abstract: A manufacturing method of a display device according to an embodiment includes forming a bank separating a first opening, a second opening, and a third opening on a first substrate, forming a scatterer layer in the first opening, the second opening, and the third opening, forming a first ink layer in the first opening, forming a second ink layer in the second opening, and forming a third ink layer in the third opening.
    Type: Application
    Filed: July 7, 2022
    Publication date: May 4, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Youngsoo KWON, Sun Young KWON, Tae Young SONG, Keun Chan OH, Won-Gap YOON, Myung Jin LEE, Hyeok Jin LEE, Yongseok CHOI
  • Publication number: 20230111772
    Abstract: A substrate transferring apparatus including a non-contact type driving unit is provided. The substrate transferring apparatus comprises a stator assembly including a driving surface and an electromagnetic generating module, a first mover including a first magnet module facing the electromagnetic generating module and floating and moving on the driving surface, and including a first inclined surface, a second mover including a second magnet module facing the electromagnetic generating module and floating and moving on the driving surface, and including a second inclined surface, and a transfer member disposed between the first mover and the second mover and moving along the first inclined surface and the second inclined surface according to a distance between the first mover and the second mover.
    Type: Application
    Filed: May 20, 2022
    Publication date: April 13, 2023
    Inventors: Myung Jin LEE, Sang Oh Kim, Hee Jae Byun, Na Hyun Lee
  • Publication number: 20230076551
    Abstract: Provided is a tower lift, including: a body; a first carriage module and a second carriage module configured to be movable in a vertical direction along the body and each support objects to be transferred; a driving unit comprising a driving belt which vertically moves the first carriage module and the second carriage module and on which the first carriage module or the second carriage module is mounted; and a gap adjusting unit adjusting a gap between the first carriage module and the second carriage module.
    Type: Application
    Filed: August 12, 2022
    Publication date: March 9, 2023
    Applicant: SEMES CO., LTD.
    Inventors: Na Hyun LEE, Sang-Oh KIM, Myung Jin LEE, Hee Jae BYUN
  • Publication number: 20220143431
    Abstract: The present invention relates to a portable personal air purifier in which there are mounted a purifier body configured to have a shape that can be carried by a user and to purify air by means of a filter, a ventilation body connected to the purifier body and configured to communicate air, and a respiration mechanism connected to the ventilation body, and configured to suck purified air; wherein the purifier body is configured such that a filter accommodating space is formed in a casing so that a filter is inserted thereinto, and the filter accommodating space has a structure in which the filter can be withdrawn in one direction; and wherein the respiration mechanism separates a ventilation line for air flowing from the purifier body and a ventilation line for air exhaled from the user.
    Type: Application
    Filed: March 12, 2020
    Publication date: May 12, 2022
    Inventor: Myung Jin LEE
  • Patent number: 10818534
    Abstract: An embodiment of a substrate treatment device may comprise: a disk provided to be able to rotate; at least one susceptor arranged on the disk, a substrate being seated on the upper surface of the susceptor, the susceptor rotating, as the disk rotates, and revolving about the center of the disk as the axis; a metal ring coupled to the lower portion of the susceptor and arranged such that the center of the metal ring coincides with the center of the susceptor, and a magnet arranged radially on the lower portion of the disk with reference to the center of the disk and provided such that at least a part of the magnet faces the metal ring in the up/down direction.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: October 27, 2020
    Assignee: JUSUNG ENGINEERING CO., LTD.
    Inventors: Ki Bum Kim, Seung Youb Sa, Ram Woo, Myung Jin Lee, Seung Dae Choi, Jong Sung Choi, Ho Boem Her
  • Patent number: 10728658
    Abstract: An electronic circuit includes an output generator and an over-voltage detector. The output generator is configured to output an output signal to an output terminal. In response to an amplitude of a voltage of the output terminal being greater than an allowable amplitude, the over-voltage detector is configured to output an over-voltage detection signal of a first logic value, such that elements included in the output generator are turned off. In response to the over-voltage detector outputting the over-voltage detection signal of the first logic value again before a reference time elapses after the first logic value of the over-voltage detection signal changes to a second logic value of the over-voltage detection signal, the turned-off elements remain turned off. In response to the over-voltage detector outputting the over-voltage detection signal of the second logic value during the reference time, the turned-off elements are turned on.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: July 28, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Myung-Jin Lee, Young-Hun Kim
  • Patent number: 10428219
    Abstract: A dye according to an exemplary embodiment of the present invention includes a compound represented by the following Chemical Formula 1. In Chemical Formula 1, R1, R4, R5, R8, R9, R12, R13, and R16 are each independently Br or Cl, R2, R3, R6, R7, R10, R11, R14, and R15 are each independently any one of a group including Br, Cl, and a hydroxyl group, a group including an —N(H)n group, and a group including an —SH group, n is 1 to 3, and at least one of the R2, R3, R6, R7, R10, R11, R14, and R15 is any one of a group including a hydroxyl group, a group including an —N(II)n group, and a group including an —SH group.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: October 1, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyun Jin Kim, Su Jeong Kim, Dae Won Lee, Myung Jin Lee, Chul Huh
  • Patent number: 10421333
    Abstract: The present disclosure provides a system of air-conditioning a seat for a vehicle and a method for controlling the same. The system of air-conditioning a seat for a vehicle includes: a blower disposed below the seat of the vehicle and configured to blow air onto a body contact surface; a first temperature sensor configured to detect a temperature of a front end of a suction hole of the blower; a second temperature sensor configured to detect a temperature of the body contact surface; a third temperature sensor configured to detect a room temperature of the vehicle; and an HVAC control unit configured to control an air-conditioning system of the vehicle. The HVAC control unit determines a blow direction mode of the air-conditioning system of the vehicle based on the temperatures detected by the first, the second, and the third temperature sensors when the blower is actuated.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: September 24, 2019
    Assignees: Hyundai Dymos Incorporated, Inzicontrols Co., Ltd.
    Inventors: Do Hyung Kim, Ho Sub Lim, Myung Jin Lee, Seung Jae Kim, Jong Dae Lim, Sang Hyun Park, Eun Sang Cho, Hyeok Lae Park
  • Publication number: 20190164801
    Abstract: An embodiment of a substrate treatment device may comprise: a disk provided to be able to rotate; at least one susceptor arranged on the disk, a substrate being seated on the upper surface of the susceptor, the susceptor rotating, as the disk rotates, and revolving about the center of the disk as the axis; a metal ring coupled to the lower portion of the susceptor and arranged such that the center of the metal ring coincides with the center of the susceptor, and a magnet arranged radially on the lower portion of the disk with reference to the center of the disk and provided such that at least a part of the magnet faces the metal ring in the up/down direction.
    Type: Application
    Filed: January 31, 2019
    Publication date: May 30, 2019
    Inventors: Ki Bum KIM, Seung Youb SA, Ram WOO, Myung Jin LEE, Seung Dae CHOI, Jong Sung CHOI, Ho Boem HER
  • Publication number: 20190098404
    Abstract: An electronic circuit includes an output generator and an over-voltage detector. The output generator is configured to output an output signal to an output terminal. In response to an amplitude of a voltage of the output terminal being greater than an allowable amplitude, the over-voltage detector is configured to output an over-voltage detection signal of a first logic value, such that elements included in the output generator are turned off. In response to the over-voltage detector outputting the over-voltage detection signal of the first logic value again before a reference time elapses after the first logic value of the over-voltage detection signal changes to a second logic value of the over-voltage detection signal, the turned-off elements remain turned off. In response to the over-voltage detector outputting the over-voltage detection signal of the second logic value during the reference time, the turned-off elements are turned on.
    Type: Application
    Filed: May 18, 2018
    Publication date: March 28, 2019
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Myung-Jin LEE, Young-Hun Kim
  • Patent number: 10229849
    Abstract: Disclosed is a substrate processing apparatus including a disc provided so as to be rotatable on its axis, at least one susceptor disposed on the disc such that a substrate is seated on an upper surface thereof, the susceptor being configured to rotate on its axis and to revolve around a center of the disc as the disc rotates on its axis, a metal ring coupled to a lower portion of the susceptor, the metal ring being arranged such that a center thereof coincides with a center of the susceptor, and a magnet provided below the disc so as to be radially arranged on a basis of the center of the disc, at least a portion of the magnet being opposite the metal ring in a vertical direction.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: March 12, 2019
    Assignee: JUSUNG ENGINEERING CO., LTD.
    Inventors: Ki Bum Kim, Seung Youb Sa, Ram Woo, Myung Jin Lee, Seung Dae Choi, Jong Sung Choi, Ho Boem Her
  • Patent number: 10124700
    Abstract: Disclosed is a locking device for a foldable structure, and the locking device includes: a foldable body, a support bracket to support a rotation shaft of the foldable body, a locking pin elastically supported in a direction from the foldable body toward the support bracket, a locking groove provided in the support bracket such that the locking pin is seated therein to inhibit a rotation of the foldable body with respect to the support bracket, and an unlocking tool provided in the foldable body to provide a linear displacement of the locking pin while overcoming an elastically-biased force of the locking pin such that the locking pin is separated from the locking groove.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: November 13, 2018
    Assignee: HYUNDAI DYMOS INCORPORATED
    Inventors: Seong Bin Jeong, Myung Jin Lee
  • Patent number: 9986336
    Abstract: A headphone driver, a sound processor that incorporates the headphone driver and a computing system that incorporates the headphone driver, wherein the headphone driver includes an amplifier having an input terminal and an output terminal, an R-2R ladder network provided with an input signal and connected to the input terminal of the amplifier, and a feedback resistor group connected to the input terminal and to the output terminal of the amplifier. The R-2R ladder network includes a plurality of resistor branches and a first attenuator that is connected between the plurality of resistor branches.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: May 29, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang Hyub Kang, Sun Woo Kwon, Hyun Sun Shim, Myung Jin Lee
  • Publication number: 20180144968
    Abstract: Disclosed is a substrate processing apparatus including a disc provided so as to be rotatable on its axis, at least one susceptor disposed on the disc such that a substrate is seated on an upper surface thereof, the susceptor being configured to rotate on its axis and to revolve around a center of the disc as the disc rotates on its axis, a metal ring coupled to a lower portion of the susceptor, the metal ring being arranged such that a center thereof coincides with a center of the susceptor, and a magnet provided below the disc so as to be radially arranged on a basis of the center of the disc, at least a portion of the magnet being opposite the metal ring in a vertical direction.
    Type: Application
    Filed: May 10, 2016
    Publication date: May 24, 2018
    Inventors: Ki Bum KIM, Seung Youb SA, Ram WOO, Myung Jin LEE, Seung Dae CHOI, Jong Sung CHOI, Ho Boem HER
  • Patent number: 9910314
    Abstract: There are provided a display device having dual color filter patterns and a manufacturing method thereof. The liquid crystal display device includes an array substrate including first color filter patterns, a counter substrate including second color filter patterns, and a liquid crystal layer interposed between the array substrate and the counter substrate, wherein the first color filter patterns and the second color filter patterns include photoresists having different color coordinates.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: March 6, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yun Ho Lee, Jin A Seo, Myung Jin Lee, Chul Huh