Patents by Inventor Hyuck Choi

Hyuck 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: 20250211240
    Abstract: Disclosed are a clock and data recovery circuit and a method of operating the same. The clock and data recovery circuit includes an analog front end that receives an external signal and outputs a non-zero return (NRZ) signal, a comparison unit that receives the NRZ signal and compares the NRZ signal with a reference voltage to generate a phase of the external signal and data; a phase detector that determines a transmission rate of the data based on the phase and generates a first recovery signal and a second recovery signal based on the transmission rate of the data; and an oscillator that generates a first clock in an oversampling scheme based on the first recovery signal and generates a second clock in a baud rate scheme based on the second recovery signal.
    Type: Application
    Filed: September 12, 2024
    Publication date: June 26, 2025
    Inventors: Chulwoo KIM, Seung-Woo PARK, Jong-Hyuck CHOI, Hwaseok SHIN, Tae-Hwan KIM
  • Publication number: 20250205250
    Abstract: The present invention provides a microsphere composition for contraceptive microneedles and contraceptive microneedles comprising the same. The microsphere composition for contraceptive microneedles according to the present invention encapsulates a drug stably, exhibits sustained-release of the drug for at least one week, and has a particle size (Dv90) suitable for use in microneedles. The contraceptive microneedles according to the present invention offer convenient administration with once-weekly use, superior skin drug permeability allowing for short attachment times, and sustained-release of the drug for at least one week. The contraceptive microneedle patch of the present invention provides sustained-release of the drug for at least one week even with short attachment times, making it useful as a female contraceptive.
    Type: Application
    Filed: June 25, 2024
    Publication date: June 26, 2025
    Inventors: Byeong Su KIM, So Kyoung JOO, Hyuck CHOI, Hyeon Jun PARK, Jeong Min LEE, Jeong Gyu LEE, Chun Woong PARK
  • Publication number: 20250091084
    Abstract: A die coater capable of effectively and simultaneously coating two different types of liquids on a current collector for a secondary battery includes a lower block including a manifold configured to accommodate an electrode slurry, an upper block coupled to the lower block and including an insulating liquid inlet, and a coater shim interposed between the upper block and the lower block. The coater shim includes a first coater shim in which a first slit for discharging the electrode slurry accommodated in the manifold is formed and a second coater shim in which a second slit for discharging the insulating liquid supplied through the insulating liquid inlet is formed, and the second coater shim is pressed by a fixing bolt screw-coupled to the insulating liquid inlet.
    Type: Application
    Filed: March 28, 2023
    Publication date: March 20, 2025
    Applicant: LG Energy Solution, Ltd.
    Inventors: Joon Sun Park, Guk Tae Kim, Taek Soo Lee, Man Hyeong Kim, Min Hyuck Choi
  • Publication number: 20250037752
    Abstract: A semiconductor device includes a frequency division circuit configured to generate a first division clock and a second division clock by dividing a frequency of a clock, and an internal command generation circuit configured to generate an internal command based on a command in synchronization with the first division clock and the second division clock, configured to latch, in a pipe latch, a phase detection signal that is generated based on the timing at which the command is received, and configured to compensate for generation timing of the internal command based on the phase detection signal that has been latched in the pipe latch.
    Type: Application
    Filed: December 13, 2023
    Publication date: January 30, 2025
    Applicant: SK hynix Inc.
    Inventors: Joon Hong PARK, Jeong Je PARK, Sang Sic YOON, Jong Hyuck CHOI
  • Patent number: 12209656
    Abstract: A column-type electronic shift control apparatus is mounted in a rotation type on a steering column of a vehicle and in which a shifter is positioned to extend upward in a standby mode and is positioned to extend laterally in a use mode by rotating from the standby mode ahead of the steering wheel in the visual field of a driver, and when necessary, it is possible to shift by operating the shifter even in the standby mode.
    Type: Grant
    Filed: July 10, 2023
    Date of Patent: January 28, 2025
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Yeong Jik Kim, Pill Yoon Kim, Jae Yeon Yu, Jee Hyuck Choi, Jae Min Park
  • Publication number: 20240344737
    Abstract: A filter module mounted on an air purifier to filter air includes a first filter unit and a second filter unit detachably connected to the first filter unit and arranged to surround the first filter unit. The first filter unit includes a shape-corresponding portion having at least a portion which is formed in a curved shape having a predetermined curvature. At least a portion of the edge of the second filter unit is formed in a shape corresponding to the shape-corresponding portion, and when the filter module is mounted on the air purifier, the amount of air passing through the first filter unit per unit area is greater than the amount of air passing through the second filter unit per unit area.
    Type: Application
    Filed: August 1, 2022
    Publication date: October 17, 2024
    Applicant: COWAY CO., LTD.
    Inventors: Yoon Hyuck CHOI, Jong Cheol KIM, Hyun Kyu LEE, Woo Ram KIM, Dong Won JEONG, Ju Hyun BAEK
  • Publication number: 20240315099
    Abstract: A partial transparent display device has a light transmitting function and a light emitting function in one area. The partial transparent display device includes a substrate, a transparent emission area, a driving emission area, and a pad part. The transparent emission area is disposed to be adjacent to one side of the substrate. The driving emission area is disposed to be adjacent to the transparent emission area and to be closer to the other side opposite to the one side. The pad part extends from the driving emission area and is disposed on the other side. The driving emission area includes driving emission pixels which are defined by scan lines, data lines, and pixel driving power supply lines. The transparent emission area includes transparent emission pixels which are defined without the scan lines, the data lines, and the pixel driving power supply lines.
    Type: Application
    Filed: May 21, 2024
    Publication date: September 19, 2024
    Inventors: Donghyun Lee, Chul Nam, Hyuck Choi
  • Publication number: 20240299970
    Abstract: A slot die coater that includes a lower die block having a manifold, an upper die block, and a shim plate interposed between the lower die block and the upper die block to form a slot. The manifold configured to accommodate a coating solution, wherein the coating solution is delivered and coated on a substrate through an exit port in communication with the slot. The shim plate includes a plate-shaped member having an open portion which is cut in at least an area to determine a coating width of a coating layer coated on the substrate, and a structure protruding from the plate-shaped member and inserted into the manifold.
    Type: Application
    Filed: November 4, 2022
    Publication date: September 12, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Young-Joon Jo, Seong-Jae You, Taek-Soo Lee, Min-Hyuck Choi, Shin-Wook Jeon, Sang-Hoon Choy
  • Publication number: 20240271697
    Abstract: A column-type electronic shift control apparatus is mounted in a rotation type on a steering column of a vehicle and in which a shifter is positioned to extend upward in a standby mode and is positioned to extend laterally in a use mode by rotating from the standby mode ahead of the steering wheel in the visual field of a driver, and when necessary, it is possible to shift by operating the shifter even in the standby mode.
    Type: Application
    Filed: July 10, 2023
    Publication date: August 15, 2024
    Applicants: Hyundai Motor Company, Kia Corporation
    Inventors: Yeong Jik KIM, Pill Yoon KIM, Jae Yeon YU, Jee Hyuck CHOI, Jae Min PARK
  • Publication number: 20240266492
    Abstract: Disclosed herein is a method for controlling an electrode shape and a method of manufacturing an electrode. The method includes molding a shape of an electrode slurry disposed on at least a part of an electrode sheet by irradiating laser on the electrode sheet, causing the electrode slurry of the irradiated portion to move to an adjacent portion. The method for controlling an electrode shape and the method of manufacturing an electrode according can minimize capacity loss and can control the direction of movement of an electrode slurry and the amount of movement of an electrode slurry to change the electrode shape.
    Type: Application
    Filed: April 6, 2023
    Publication date: August 8, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Min Hyuck Choi, Joon Sun Park, Taek Soo Lee, Man Hyeong Kim, Guk Tae Kim, Shin Wook Jeon
  • Publication number: 20240262703
    Abstract: The method for recovering lithium hydroxide from a lithium secondary battery allows a powder comprising lithium and valuable metals to be prepared from the lithium secondary battery. The powder is reduced to form a preliminary precursor mixture including a preliminary lithium precursor and valuable metal-containing particles. The preliminary precursor mixture is primarily washed with water (H2O) to generate a lithium precursor aqueous solution and a precipitate. The lithium precursor is recovered through solid-liquid separation of the lithium precursor aqueous solution and the precipitate. The lithium precursor is recovered, through additional washing and solid-liquid separation, from the precipitate obtained through the solid-liquid separation. A calcium compound is added in the primary washing operation or the additional washing operation. Therefore, a highly-pure lithium precursor can be obtained without a complex leaching process and additional processes resulting from a wet process of an acid solution.
    Type: Application
    Filed: April 11, 2024
    Publication date: August 8, 2024
    Inventors: Hyeon Jung KIM, Ji Yun PARK, Ji Min KIM, Dong Ryul PARK, Min Hyuck CHOI, Suk Joon HONG
  • Publication number: 20240246108
    Abstract: A die coater capable of simultaneously coating a current collector with two different liquids in multiple layers, includes a first body with a first manifold for an electrode slurry, a second body with a second manifold coupled to the first body to form a first slit through which the electrode slurry in the first manifold is discharged, and a third body coupled to the second body to form a second slit through which the electrode slurry in the second manifold is discharged. The first slit is formed by a first and third shim that are interposed between coupling surfaces of the first and second body, and the second slit is formed by a second and fourth shim that are interposed between coupling surfaces of the second and third body, and at least any one of the third shim and the fourth shim forms an insulating liquid slit.
    Type: Application
    Filed: April 4, 2023
    Publication date: July 25, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Joon Sun Park, Shin Wook Jeon, Taek Soo Lee, Man Hyeong Kim, Min Hyuck Choi, Guk Tae Kim
  • Publication number: 20240226951
    Abstract: An insulating liquid supplying device includes an insulating liquid tank for receiving insulating liquid, a slot die for discharging insulating liquid to the outside, and an insulating liquid header located at the upper part of the slot die for conveying insulating liquid transferred from the insulating liquid tank to the slot die. A pipe connecting the insulating liquid tank, slot die, and insulating liquid header permits transfer of the insulating liquid, and a transfer pump is provided in the pipe to transfer insulating liquid from the insulating liquid tank to the slot die.
    Type: Application
    Filed: March 17, 2023
    Publication date: July 11, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Joon Sun Park, Guk Tae Kim, Man Hyeong Kim, Min Hyuck Choi
  • Publication number: 20240221016
    Abstract: Provided are a system for providing a reward service using an insertion-type reward module, and a method thereof. A system for providing a reward service according to some embodiments of the present disclosure may comprise: a reward module which is inserted into an app, displays a predetermined indicator while the app is running, displays advertisement content in response to an input of a user associated with the displayed indicator, and transmits a request for accumulating rewards calculated according to predetermined conditions to a reward service providing server; and the reward service providing server which accumulates the calculated rewards corresponding to the user in response to the accumulation request.
    Type: Application
    Filed: September 2, 2020
    Publication date: July 4, 2024
    Applicant: AVATYE CO., LTD.
    Inventors: Geum Uk SEO, Won Hyuck CHOI
  • Patent number: 12022703
    Abstract: A partial transparent display device has a light transmitting function and a light emitting function in one area. The partial transparent display device includes a substrate, a transparent emission area, a driving emission area, and a pad part. The transparent emission area is disposed to be adjacent to one side of the substrate. The driving emission area is disposed to be adjacent to the transparent emission area and to be closer to the other side opposite to the one side. The pad part extends from the driving emission area and is disposed on the other side. The driving emission area includes driving emission pixels which are defined by scan lines, data lines, and pixel driving power supply lines. The transparent emission area includes transparent emission pixels which are defined without the scan lines, the data lines, and the pixel driving power supply lines.
    Type: Grant
    Filed: July 8, 2022
    Date of Patent: June 25, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Donghyun Lee, Chul Nam, Hyuck Choi
  • Publication number: 20240198268
    Abstract: A plasma filter includes: a bar assembly including a bar extending in a longitudinal direction; a wire installed spaced apart from the bar to generate plasma between the bar and the wire when power is applied thereto; and a frame assembly on which the bar and the wire are supported. A posture fixture is formed in the frame assembly to fix one or more of both end portions of the bar to prevent a posture of the bar from changing.
    Type: Application
    Filed: November 13, 2023
    Publication date: June 20, 2024
    Applicant: COWAY Co., Ltd.
    Inventors: Seung Ki KIM, Bu Gwan CHUN, Yoon Hyuck CHOI, Ju Hyun BAEK, Chan Jung PARK
  • Publication number: 20240149292
    Abstract: A slot die coater includes a lower die block including a first manifold in which an electrode active material slurry is accommodated, an upper die block including a second manifold in which an insulating coating solution is accommodated, and a shim plate located between the lower die block and the upper die block to form a slot communicating with a discharge port. The shim plate includes a first concave portion provided in a first surface located to cover the first manifold of the lower die block, and a second concave portion provided in a second surface located to cover the second manifold of the upper die block, wherein two second concave portions are configured to be located on opposite sides of the first concave portion in a width direction.
    Type: Application
    Filed: December 7, 2022
    Publication date: May 9, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Joon-Sun Park, Guk-Tae Kim, Man-Hyeong Kim, Min-Hyuck Choi
  • Patent number: 11979160
    Abstract: A single-signal receiver including an active inductor continuous time linear equalizer and a reference voltage selection equalizer is provided. The single-signal receiver includes a continuous time linear equalizing unit to receive a single signal, and compensate for distortion of the single signal to generate an output, and a reference voltage selection equalizing unit to select one of a first reference voltage value and a second reference voltage value based on a previous output from a comparator, and sample the output from the continuous time linear equalizing unit, based on the one of the first reference voltage value and the second reference voltage value.
    Type: Grant
    Filed: October 6, 2022
    Date of Patent: May 7, 2024
    Assignee: Korea University Research and Business Foundation
    Inventors: Chulwoo Kim, Jong-Hyuck Choi
  • Publication number: 20240123386
    Abstract: A filter holder comprises: a plurality of filter frames disposed such that at least some thereof are adjacent to each other; and a folding member which supports filter frames, from among the plurality of filter frames, adjacent to each other so as to be rotatable with respect to each other. The folding member comprises: a folding part which has a predetermined thickness and is flexible so as to be foldable by means of rotation of the adjacent filter frames adjacent with respect to each other; and a plurality of edge parts which are connected to the respective sides of the folding part with the folding portion therebetween and rotate together with the adjacent filter frames, and wherein when viewed from a cross-section of the folding member, the edge parts may have a greater thickness than the folding part.
    Type: Application
    Filed: January 28, 2022
    Publication date: April 18, 2024
    Applicant: COWAY CO.,LTD.
    Inventors: Yoon Hyuck CHOI, Hyun Kyu LEE, Jong Cheol KIM, Seung Ki KIM, Sung Sil KANG, Ju Hyun BAEK, Chan Jung PARK
  • Publication number: 20240100464
    Abstract: An air filter comprises: a first filter frame in which a plurality of first chambers are formed; a second filter frame in which a plurality of second chambers are formed and which is arranged at the rear of the first filter frame; and a filter material which is accommodated in the plurality of first chambers and the plurality of second chambers to filter air, wherein the first filter frame and the second filter frame are arranged so that, when seen from the front, the center of each of the plurality of second chambers is out of line with the center of each of the plurality of first chambers, in the vertical direction.
    Type: Application
    Filed: January 28, 2022
    Publication date: March 28, 2024
    Applicant: COWAY CO., LTD.
    Inventors: Yoon Hyuck CHOI, Hyun Kyu LEE, Jong Cheol KIM, Seung Ki KIM, Sung Sil KANG, Ju Hyun BAEK, Chan Jung PARK