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: 10807056
    Abstract: The present invention relates to a high pressure homogenizer and a method for manufacturing graphene using the same, and according to one aspect of the present invention, there is provided a high pressure homogenizer comprising a channel module which comprises a microchannel through which an object for homogenization passes, wherein the channel module comprises at least one baffle disposed so as to partition the microchannel into a plurality of spaces and the baffle is provided so as to partition the microchannel into two spaces along the width direction or the height direction.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: October 20, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Eun Jeong Kim, Kwang Hyun Yoo, Ye Hoon Im, Jin Yeong Lee, Won Jong Kwon
  • Patent number: 10804550
    Abstract: A humidifier for a fuel cell includes: a bundle of hollow fiber membranes disposed therein, such that an intake gas flows inside the bundle of hollow fiber membranes; a housing configured to accommodate the bundle of hollow fiber membranes, such that an exhaust gas, which has a higher humidity than the intake gas, flows inside the housing; and a guide member disposed in the housing to restrict a movement of the bundle of hollow fiber membranes inside the housing. Coolant flows through the guide member to cool the exhaust gas to promote condensation of the exhaust gas.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: October 13, 2020
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Hyun Yoo Kim, Chang Ha Lee
  • Patent number: 10786074
    Abstract: A monitor support assembly includes a base and an upright frame structure i-s spaced forward to the rear of the base that 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 first and second 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 member 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: May 29, 2018
    Date of Patent: September 29, 2020
    Assignee: STEELCASE INC.
    Inventors: Brett Kincaid, Mark Spoelhof, Mark Schoolmeester, Duck Young Kong, John Allen, Hyun Yoo
  • Patent number: 10784314
    Abstract: The present invention relates to image sensors and method of manufacturing the same. The image sensor may include a substrate having pixel regions in which photoelectric-conversion devices and storage node regions spaced apart from each other; a lower contact via between the photoelectric conversion-devices in the pixel regions; a first insulating layer on the lower contact via and having an opening; an upper contact via electrically connected to the lower contact via through the first insulating layer and protruding from the first insulating layer; a second insulating layer surrounding the first insulating layer and the upper contact via, an upper surface of the second insulating layer in the opening defining a trench; a color filter filling the trench; a protective film exposing the upper contact via; a first transparent electrode on the protective film that contacts the upper contact via; and an organic photoelectric layer on the first transparent electrode.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: September 22, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong Hyun Yoo, Eun Mi Kim, Joon Kim, Chang Hwa Kim, Sang Su Park, Kyung Rae Byun, Sang Hoon Song
  • Publication number: 20200295028
    Abstract: A method for fabricating semiconductor device includes forming an alternating stack that includes a lower multi-layered stack and an upper multi-layered stack by alternately stacking a dielectric layer and a sacrificial layer over a substrate, forming a vertical trench that divides the upper multi-layered stack into dummy stacks, and forming an asymmetric stepped trench that is extended downward from the vertical trench to divide the lower multi-layered stack into a pad stack and a dummy pad stack, wherein forming the asymmetric stepped trench includes forming a first stepped sidewall that is defined at an edge of the pad stack, and forming a second stepped sidewall that is defined at an edge of the dummy pad stack and occupies less area than the first stepped sidewall.
    Type: Application
    Filed: September 13, 2019
    Publication date: September 17, 2020
    Inventors: Eun-Ho KIM, Eun-Joo JUNG, Jong-Hyun YOO, Ki-Jun YUN, Sung-Hoon LEE
  • Patent number: 10766842
    Abstract: The present invention relates to an anhydrosugar alcohol composition having enhanced storage stability, and an anhydrosugar alcohol storage method, and more specifically, to an anhydrosugar alcohol composition having enhanced storage stability by comprising anhydrosugar alcohol and an amine-based additive; and to a method by which anhydrosugar alcohol having excellent quality may be provided by having the storing of the anhydrosugar alcohol performed under the existence of the amine-based additive, thereby remarkably enhancing the storage stability of the anhydrosugar alcohol.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: September 8, 2020
    Assignee: SAMYANG CORPORATION
    Inventors: Hoon Ryu, Seung Hyun Yoo, Hyun Seung Lee, Jun Seop Im, Young Jae Jung
  • Publication number: 20200273460
    Abstract: An electronic device and an method of the electronic device are provided, where the electronic device maintains a context that does not reflect a request for a secret conversation, in response to the request for the secret conversation being received from a first user, and generates a response signal to a voice signal of a second user based on the maintained context, in response to an end of the secret conversation with the first user.
    Type: Application
    Filed: May 12, 2020
    Publication date: August 27, 2020
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Sang Hyun Yoo, Young-Seok Kim, Jeong-hoon Park, Jehun Jeon, Junhwi Choi
  • Patent number: 10756362
    Abstract: An air shut-off valve apparatus for a fuel cell system is provided. The apparatus includes a valve body having an inlet-side air passage through which supply air flows and an outlet-side air passage through which exhaust air flows. A valve flap is installed in the valve body to open or close the inlet-side air passage and the outlet-side air passage. An inlet-side check valve is opened when pressure of the supply air is greater than or equal to a predetermined pressure, to guide the supply air into the fuel cell stack through the inlet-side air passage even while the valve flap is closed. An outlet-side check valve is opened when pressure of the exhaust air is greater than or equal to a predetermined pressure, to guide the exhaust air released from the fuel cell stack to flow through the outlet-side air passage even while the valve flap is closed.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: August 25, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Byeong Seung Lee, Kyoung Ku Ha, Hyun Yoo Kim, Jeong Hee Park
  • Patent number: 10739515
    Abstract: A waveguide having a light-shielding film formed on a cut surface of an edge side of the planar waveguide, the light-shielding film having a thickness of 2 to 10 ?m and an optical density (OD) of 0.7 to 1.0 based on a light-shielding film thickness of 1.0 ?m, and a method for manufacturing the same.
    Type: Grant
    Filed: November 23, 2017
    Date of Patent: August 11, 2020
    Assignee: LG Chem, Ltd.
    Inventors: A-Reum Kim, Jae-Hyun Yoo, Sung-Eun Park, Joon-Hyung Kim
  • Patent number: 10733975
    Abstract: An out-of-service (OOS) sentence generating method includes: training models based on a target utterance template of a target service and a target sentence generated from the target utterance template; generating a similar utterance template that is similar to the target utterance template based on a trained model, among the trained models, and a sentence generated from an utterance template of another service; and generating a similar sentence that is similar to the target sentence based on another trained model, among the trained models, and the similar utterance template.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: August 4, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Seok Kim, Sang Hyun Yoo, Jehun Jeon, Junhwi Choi
  • Patent number: 10723900
    Abstract: Disclosed is a method of manufacturing a bezel using UV-curable inkjet ink, including: a) subjecting a substrate to inkjet printing using UV-curable inkjet ink, thus forming a substrate having a bezel; b) thermally treating the substrate having the bezel in an oven or on a hot plate, thus eliminating cure shrinkage; and c) irradiating the bezel with UV light, thus forming a cured bezel.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: July 28, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Jae-Hyun Yoo, Kook-Hyun Choi, Joon-Hyung Kim
  • Publication number: 20200230261
    Abstract: The present invention provides hydrophilic bilirubin derivative particles containing a metal, a use thereof, and a preparation method therefor. The bilirubin derivative particles of the present invention form coordinate bonds with various metals, and thus can be used in MR diagnosis, CT diagnosis, photo-acoustic diagnosis, PET diagnosis, or optical diagnosis. The bilirubin derivative particles of the present invention can release an anticancer drug encapsulated therein to the outside by the combination with a platinum-based anticancer drug and the degradation by a stimulation of light/reactive oxygen species, and exhibit anti-inflammatory and anticancer activities, and thus the bilirubin derivative particles of the present invention have a concept of theranostics in which the bilirubin derivative particles can be for therapeutic uses as well as diagnostic uses.
    Type: Application
    Filed: May 14, 2018
    Publication date: July 23, 2020
    Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Sang Yong JON, Dong Yun LEE, Yong Hyun LEE, Do Hyun YOO, Won Sik JUNG
  • Patent number: 10706796
    Abstract: A liquid crystal display includes a display panel, a data driver, and a scan driver. The display panel includes first and second pixel groups, each of having two pixels. The data driver is connected to the display panel via a plurality of data lines. The scan driver is connected to the display panel via a plurality of scan lines. The first pixel group is connected to one of the data lines. The second pixel group is connected to both the data line to which the first pixel group is connected and a data line adjacent to the data line to which the first pixel group is connected.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: July 7, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seon Kyoon Mok, Seong Young Lee, Hyung Jun Park, Dong Hyun Yoo, Kyung Hoe Lee, Hwan Young Jang, Chang Won Jeong
  • Publication number: 20200211614
    Abstract: Methods, systems, and devices for a source follower-based sensing architecture and sensing scheme are described. In one example, a memory device may include a sense circuit that includes two source followers that are coupled to each other and to a sense amplifier. A method of operating the memory device may include transferring a digit line voltage to one of the source followers and transferring a reference voltage to the other source follower. After transferring the digit line voltage and the reference voltage, the source followers may be enabled so that signals representative of the digit line voltage and the reference voltage are transferred from the outputs of the source followers to the sense amplifier for sensing.
    Type: Application
    Filed: March 9, 2020
    Publication date: July 2, 2020
    Inventors: Hyun Yoo Lee, Suryanarayana B. Tatapudi, Huy T. Vo, Ferdinando Bedeschi, Umberto Di Vincenzo, Riccardo Muzzetto
  • Publication number: 20200212460
    Abstract: An air shut-off valve apparatus for a fuel cell system is provided. The apparatus includes a valve body having an inlet-side air passage through which supply air flows and an outlet-side air passage through which exhaust air flows. A valve flap is installed in the valve body to open or close the inlet-side air passage and the outlet-side air passage. An inlet-side check valve is opened when pressure of the supply air is greater than or equal to a predetermined pressure, to guide the supply air into the fuel cell stack through the inlet-side air passage even while the valve flap is closed. An outlet-side check valve is opened when pressure of the exhaust air is greater than or equal to a predetermined pressure, to guide the exhaust air released from the fuel cell stack to flow through the outlet-side air passage even while the valve flap is closed.
    Type: Application
    Filed: April 5, 2019
    Publication date: July 2, 2020
    Inventors: Byeong Seung Lee, Kyoung Ku Ha, Hyun Yoo Kim, Jeong Hee Park
  • Patent number: 10700193
    Abstract: A power device includes a drift layer of a second conductivity type located on a semiconductor layer of a first conductivity type, a first source region of the second conductivity type and a second source region of the second conductivity type, located on the drift layer to be apart from each other, and a gate electrode on the drift layer between the first and second source regions with a gate insulating layer between the gate electrode and the drift layer, wherein the gate electrode includes a first gate electrode and a second gate electrode adjacent to the first source region and the second source region, respectively, and a third gate electrode between the first and second gate electrodes, wherein the third gate electrode is floated or grounded.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: June 30, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-hyun Yoo, Ui-hui Kwon, Da-won Jeong, Jae-ho Kim, Jun-hyeok Kim, Kang-hyun Baek, Kyu-ok Lee
  • Patent number: 10685653
    Abstract: An electronic device and an method of the electronic device are provided, where the electronic device maintains a context that does not reflect a request for a secret conversation, in response to the request for the secret conversation being received from a first user, and generates a response signal to a voice signal of a second user based on the maintained context, in response to an end of the secret conversation with the first user.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: June 16, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang Hyun Yoo, Young-Seok Kim, Jeong-hoon Park, Jehun Jeon, Junhwi Choi
  • Publication number: 20200159684
    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: January 24, 2020
    Publication date: May 21, 2020
    Inventor: Hyun Yoo Lee
  • Publication number: 20200153004
    Abstract: A humidifier for a fuel cell includes a body, first and second humidifying spaces formed inside the body, an exhaust gas inlet and an exhaust gas outlet for supplying exhaust gas released from the fuel cell stack into the first and second humidifying spaces, a passing space formed inside the body and directly or indirectly communicated with the second humidifying space and the fuel cell stack. The inflow gas flows into the passing space from the first humidifying space. A valve is installed in the passing space to allow the inflow gas introduced into the passing space to flow into the fuel cell stack with or without passing through or to allow some of the inflow gas introduced into the passing space to flow into the fuel cell stack passing through the second humidifying space and others of the inflow gas introduced into the fuel cell stack without passing through the second humidifying space.
    Type: Application
    Filed: March 28, 2019
    Publication date: May 14, 2020
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Sae Han Oh, Hyun Yoo Kim
  • Publication number: 20200144411
    Abstract: A power device includes a drift layer of a second conductivity type located on a semiconductor layer of a first conductivity type, a first source region of the second conductivity type and a second source region of the second conductivity type, located on the drift layer to be apart from each other, and a gate electrode on the drift layer between the first and second source regions with a gate insulating layer between the gate electrode and the drift layer, wherein the gate electrode includes a first gate electrode and a second gate electrode adjacent to the first source region and the second source region, respectively, and a third gate electrode between the first and second gate electrodes, wherein the third gate electrode is floated or grounded.
    Type: Application
    Filed: May 16, 2019
    Publication date: May 7, 2020
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jae-hyun YOO, Ui-hui Kwon, Da-won Jeong, Jae-ho Kim, Jun-hyeok Kim, Kang-hyun Baek, Kyu-ok Lee