Patents by Inventor Hyun Yoo

Hyun Yoo 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).

  • Patent number: 11649316
    Abstract: The present invention relates to a composition for forming an environmentally friendly polyurethane foam, the composition having improved storage stability, air permeability, and anti-oxidation characteristics and to a method for manufacturing a polyurethane foam and, more specifically, to an isocyanate pre-polymer prepared by reaction of a polyisocyanate and a polyol component comprising a bio-polyol, to a composition for forming an environmentally friendly polyurethane foam, the composition having improved storage stability, air permeability, and anti-oxidative characteristics by comprising the pre-polymer as one component, to a method for manufacturing a polyurethane foam using the same, and to an environmentally friendly polyurethane foam manufactured thereby.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: May 16, 2023
    Assignee: SAMYANG CORPORATION
    Inventors: Gwang Seok Song, Seung Hyun Yoo, Hoon Ryu, Hyuk Min Park, Jun Seop Im
  • Patent number: 11646431
    Abstract: A humidifier for a fuel cell is provided and includes a housing having, at a first side, a moist air supply port through which moist air is supplied from a fuel cell stack and having, at a second side, a moist air discharge port. A humidifying membrane is disposed in the housing and allows dry air to flow along the inside of the humidifying membrane. A bypass flow path is formed in the housing to allow a part of the moist air supplied to the moist air supply port to continuously flow to the moist air discharge port without passing through the humidifying membrane, thereby adjusting the amount of humidification and a differential pressure of the humidifier based on an operating condition of a fuel cell.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: May 9, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Kolon Industries, Inc.
    Inventors: Hyun Yoo Kim, Woong Jeon Ahn, Young Seok Oh, Kyoung Ju Kim
  • Patent number: 11641021
    Abstract: A humidifier for a fuel cell includes: a housing that includes a moist air supply port through which moist air is supplied, a moist air discharge port through which the moist air is discharged, and an inflow gas supply port through which inflow gas is supplied; a humidification unit provided in the housing to humidify the inflow gas by using the moist air; and a humidification amount adjusting unit to selectively adjust an amount of humidification of the inflow gas by the humidification unit based on a flow rate of the moist air supplied to the moist air supply port, thereby obtaining an advantageous effect of accurately adjusting the amount of humidification based on an operating condition of a fuel cell stack.
    Type: Grant
    Filed: October 21, 2020
    Date of Patent: May 2, 2023
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Ju Yong Lee, Hyun Yoo Kim
  • Patent number: 11621031
    Abstract: In some examples, memory die may include a selection pad, which may be coupled to a power potential. The selection pad may provide a signal to a selection control circuit, which may control a selection circuit to couple a power pad to one of multiple power rails. In some examples, a power management integrated circuit may include a selection circuit to provide one power potential to a package including a memory die when a selection signal has a logic level and another power potential when the selection signal has another logic level.
    Type: Grant
    Filed: April 27, 2021
    Date of Patent: April 4, 2023
    Assignee: MICRON TECHNOLOGY, INC.
    Inventors: Hyun Yoo Lee, Kang-Yong Kim, Sourabh Dhir, Keun Soo Song
  • Patent number: 11612240
    Abstract: A monitor support assembly includes a base designed to rest on an ambient floor surface. An upright frame structure is spaced forward to the rear of the base and extends vertically upward from the base. The frame structure includes first and second vertical members and a top frame member that extends horizontally between the vertical members, A shroud assembly is mounted to the upright frame structure and includes a first central wall member and first and second additional wall members extending from the first and second lateral edges in the same direction. The first central wall member and the additional wall members form a receiving space. A mounting plate mountable to the rear surface of a displays screen is releasably supported by the upright frame structure within the receiving space. A depth dimension of the receiving space is sufficient to accommodate a display screen mounted via the mounting plate.
    Type: Grant
    Filed: June 8, 2021
    Date of Patent: March 28, 2023
    Assignee: Steelcase Inc.
    Inventors: Brett Kincaid, Mark Spoelhof, Mark Schoolmeester, Duck Young Kong, John Allen, Hyun Yoo
  • Publication number: 20230090574
    Abstract: Disclosed are a safety service system and a method thereof. The safety service system comprises: a collection unit for collecting position information and image information related to a protected person who is registered by a protector; and a service providing unit for providing the position information and the image information to one or both of the protector and a security company upon detection of a signal that the protected person is in danger.
    Type: Application
    Filed: November 16, 2022
    Publication date: March 23, 2023
    Applicant: THINKWARE CORPORATION
    Inventors: Ji Young LEE, Yong Rae JO, Jung Hwa YOO, Ji Hyun YOO, Taekyu Han
  • Patent number: 11611090
    Abstract: A fuel cell humidifier may completely or substantially completely prevent condensate water from entering a running fuel cell stack. The fuel cell humidifier includes a housing; a plurality of hollow fiber membranes arranged in the housing; a cap which is coupled to one end of the housing and has an air discharge port for supplying humidified air to the fuel cell stack; and a bypass tube for transferring condensate water generated from the humidified air to an interior space of the housing through which a discharge gas flows, wherein a first end of the bypass tube is disposed inside the air discharge port, and the bypass tube is in fluid communication with the interior space of the housing through a second end of the bypass tube.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: March 21, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Kolon Industries, Inc.
    Inventors: Woong-Jeon Ahn, Kyoung-Ju Kim, Young-Seok Oh, Jin-Hyung Lee, Na-Hyeon An, Chang-Ha Lee, Hyun-Yoo Kim
  • Publication number: 20230077744
    Abstract: Disclosed are a safety service system and a method thereof. The safety service system comprises: a collection unit for collecting position information and image information related to a protected person who is registered by a protector; and a service providing unit for providing the position information and the image information to one or both of the protector and a security company upon detection of a signal that the protected person is in danger.
    Type: Application
    Filed: November 16, 2022
    Publication date: March 16, 2023
    Applicant: THINKWARE CORPORATION
    Inventors: Ji Young LEE, Yong Rae JO, Jung Hwa YOO, Ji Hyun YOO, Taekyu Han
  • Publication number: 20230079817
    Abstract: Disclosed are a safety service system and a method thereof. The safety service system comprises: a collection unit for collecting position information and image information related to a protected person who is registered by a protector; and a service providing unit for providing the position information and the image information to one or both of the protector and a security company upon detection of a signal that the protected person is in danger.
    Type: Application
    Filed: November 16, 2022
    Publication date: March 16, 2023
    Applicant: THINKWARE CORPORATION
    Inventors: Ji Young LEE, Yong Rae JO, Jung Hwa YOO, Ji Hyun YOO, Taekyu Han
  • Publication number: 20230070603
    Abstract: Disclosed are a polyamide resin composition and a molded article manufactured using the same. The molded article may have excellent mechanical strength, deformation resistance and light resistance, and may be suitable for use without coating. The polyamide resin composition includes a polyamide resin, an auxiliary resin (e.g., an acrylonitrile-butadiene-styrene copolymer), a filler (e.g., glass fibers and glass beads), and a compatibilizer (e.g., copolymer including maleimide).
    Type: Application
    Filed: August 8, 2022
    Publication date: March 9, 2023
    Inventors: Seul Yi, Boo Youn An, Dae Sik Kim, Kyeong Hoon Jang, In Soo Han, Jin Gi Ahn, Seong Hyun Myung, Seong Jun Yu, Jung Hyun Yoo, Ki Bong Jung
  • Patent number: 11581556
    Abstract: A fuel cell system capable of improving the chemical durability of a membrane electrode assembly by compensating for the amount of an antioxidant lost within the electrolyte membrane or electrode of the fuel cell stack in such a manner that the antioxidant is provided from an antioxidant supply device, provided in a fuel processing system and/or an air processing system, to a fuel cell stack, in preparation for a case where the antioxidant within the electrolyte membrane or electrode is lost due to the dissolution or migration characteristic of the antioxidant.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: February 14, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jung Han Yu, Hyeon Seok Ban, Bo Ki Hong, Hyun Yoo Kim
  • Publication number: 20230038907
    Abstract: Disclosed are a safety service system and a method thereof. The safety service system comprises: a collection unit for collecting position information and image information related to a protected person who is registered by a protector; and a service providing unit for providing the position information and the image information to one or both of the protector and a security company upon detection of a signal that the protected person is in danger.
    Type: Application
    Filed: October 24, 2022
    Publication date: February 9, 2023
    Applicant: THINKWARE CORPORATION
    Inventors: Ji Young LEE, Yong Rae JO, Jung Hwa YOO, Ji Hyun YOO, Taekyu Han
  • Publication number: 20230039984
    Abstract: Methods, systems, and apparatuses related to memory operation with common clock signals are provided. A memory device or system that includes one or more memory devices may be operable with a common clock signal without a delay from switching on-die termination on or off. For example, a memory device may comprise first impedance adjustment circuitry configured to provide a first impedance to a received clock signal having a clock impedance and second impedance adjustment circuitry configured to provide a second impedance to the received clock signal. The first impedance and the second impedance may be configured to provide a combined impedance about equal to the clock impedance when the first impedance adjustment circuitry and the second impedance adjustment circuitry are connected to the received clock signal in parallel.
    Type: Application
    Filed: October 20, 2022
    Publication date: February 9, 2023
    Inventor: Hyun Yoo Lee
  • Patent number: 11562204
    Abstract: A recognition method includes extracting target data corresponding to a current window and padding data subsequent to the target data from sequence data; acquiring a state parameter corresponding to a previous window; and calculating a recognition result for the current window based on the state parameter, the extracted target data, and the extracted padding data using a recurrent model.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: January 24, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Sang Hyun Yoo
  • Patent number: 11555786
    Abstract: Apparatus for laser induced ablation spectroscopy (LIBS) is disclosed. An apparatus can have a computer, a pulsed laser and a lightguide fiber bundle that is subdivided into branches. One branch can convey a first portion of the light to a first optical spectrometer and a different branch can convey a second portion of the light to another optical spectrometer. The first spectrometer can be relatively wideband to analyze a relative wide spectral segment and the other spectrometer can be high dispersion to measure minor concentrations. The apparatus can have a plurality of spectrometers with distinct and/or complementary capabilities, and can include an inductively coupled plasma mass spectrometer and data and instructions in tangible media operable to obtain a synergistic composition analysis based on optical spectra and ion mass to charge ratio peaks from the mass spectrometer.
    Type: Grant
    Filed: September 6, 2022
    Date of Patent: January 17, 2023
    Assignee: Applied Spectra, Inc.
    Inventors: Jong Hyun Yoo, Chunyi Liu, Richard E. Russo
  • Publication number: 20230009647
    Abstract: Apparatus for laser induced ablation spectroscopy (LIBS) is disclosed. An apparatus can have a computer, a pulsed laser and a lightguide fiber bundle that is subdivided into branches. One branch can convey a first portion of the light to a first optical spectrometer and a different branch can convey a second portion of the light to another optical spectrometer. The first spectrometer can be relatively wideband to analyze a relative wide spectral segment and the other spectrometer can be high dispersion to measure minor concentrations. The apparatus can have a plurality of spectrometers with distinct and/or complementary capabilities, and can include an inductively coupled plasma mass spectrometer and data and instructions in tangible media operable to obtain a synergistic composition analysis based on optical spectra and ion mass to charge ratio peaks from the mass spectrometer.
    Type: Application
    Filed: September 6, 2022
    Publication date: January 12, 2023
    Applicant: Applied Spectra, Inc.
    Inventors: Jong Hyun Yoo, Chunyi Liu, Richard E. Russo
  • Patent number: 11537451
    Abstract: Disclosed is an example method of displaying a notification on a device with a plurality of operating systems (OSes) installed therein. The method includes identifying a first OS displayed on a first display of the device among the plurality of OSes, detecting a notification generated in a second OS running in a background of the device among the plurality of OSes, converting the generated notification based on a preset format of the first OS when the notification is generated, and displaying the converted notification on the first display on which the first OS is displayed.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: December 27, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung-hyun Yoo, Seung-chul Ko, Gi-hun Jung, Sung-min Lee
  • Publication number: 20220406891
    Abstract: A semiconductor device includes a substrate, a gate electrode disposed on an upper surface of the substrate, a source region disposed on a first side of the gate electrode, a drain region disposed on a second side of the gate electrode opposite to the first side of the gate electrode in a horizontal direction, and an insulating structure at least partially buried inside the substrate on the substrate. The insulating structure includes a first portion disposed between the substrate and the gate electrode, and a second portion in contact with the drain region. An uppermost surface of the second portion of the insulating structure is lower than an uppermost surface of the first portion of the insulating structure. At least a part of the gate electrode is disposed on the uppermost surface of the second portion of the insulating structure.
    Type: Application
    Filed: January 21, 2022
    Publication date: December 22, 2022
    Inventors: Jun Hyeok Kim, Jae-Hyun Yoo, Ui Hui Kwon, Kyu Ok Lee, Yong Woo Jeon, Da Won Jeong
  • Publication number: 20220406357
    Abstract: This document describes apparatuses and techniques for multi-rail power transition. In various aspects, a power rail controller transitions a memory circuit (e.g., of a memory die) from a first power rail to a second power rail. The power rail controller then changes a voltage of the first power rail from a first voltage to a second voltage. The power rail controller may also adjust termination impedance or a clock frequency of the memory circuit before transitioning the memory circuit to the second power rail. The power rail controller then transitions the memory circuit from the second power rail to the first power rail to enable operation of the memory circuit at the second voltage. By so doing, the power rail controller may improve the reliability of memory operations when transitioning operation of the memory circuit from the first voltage to the second voltage.
    Type: Application
    Filed: May 27, 2022
    Publication date: December 22, 2022
    Applicant: Micron Technology, Inc.
    Inventors: Kang-Yong Kim, Hyun Yoo Lee, Keun Soo Song
  • Publication number: 20220406365
    Abstract: This document describes apparatuses and techniques for write timing compensation. In various aspects, a write timing compensator of a memory controller can apply a delay to data signals transmitted to a memory circuit based on various operating parameters, which may include voltage or latency information. In some cases, the memory controller or memory circuit powers components of write timing compensation circuitry using a dynamic power rail that scales with an operating voltage of the memory circuit. By so doing, the write timing compensator or compensation circuits may improve signal integrity of data signals communicated between the memory controller and the memory circuit at different frequencies and voltages.
    Type: Application
    Filed: May 27, 2022
    Publication date: December 22, 2022
    Applicant: Micron Technology, Inc.
    Inventors: Kang-Yong Kim, Keun Soo Song, Hyun Yoo Lee