Patents by Inventor Kyu Hwan An

Kyu Hwan An 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: 20240116822
    Abstract: A method for manufacturing a silicon nitride substrate is provided. The method comprises the steps of: preparing a ceramic composition containing a metal silicon powder and a crystalline phase control powder containing a rare earth element-containing compound and a magnesium-containing compound; manufacturing a sheet-shaped molded body of a slurry prepared by mixing a solvent and an organic binder with the ceramic composition; and performing heat treatment including a nitrification section where heat treatment is performed at a first temperature in the range of 1300-1500° C. together with the application of nitrogen gas to the molded body at a predetermined pressure and a sintering section where heat treatment is performed at a second temperature in the range of 1700-1900° C.
    Type: Application
    Filed: May 3, 2022
    Publication date: April 11, 2024
    Applicant: AMOTECH CO., LTD.
    Inventors: Kyu Hwan PARK, Hun CHEONG
  • Patent number: 11951507
    Abstract: Provided is a mask manufacturing method which includes preparing a mask sheet and a frame, stretching the mask sheet, and fixing the stretched mask sheet to the frame, and forming cell openings in the mask sheet fixed to the frame.
    Type: Grant
    Filed: February 27, 2023
    Date of Patent: April 9, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hwi Kim, Jeongkuk Kim, Da-Hee Jeong, Seungyong Song, Areum Lee, Hye Yong Chu, Kyu Hwan Hwang
  • Patent number: 11957038
    Abstract: A mask includes a body unit through which a deposition opening is defined, and a protrusion unit through which a pattern opening is defined and which protrudes from a corner of the body unit, where a thickness of the body unit is greater than a thickness of the protrusion unit.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: April 9, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Areum Lee, Jeongkuk Kim, Hwi Kim, Seungyong Song, Kyu Hwan Hwang
  • Publication number: 20240109536
    Abstract: Provided is a method of predicting a future trajectory of a current target vehicle by using pieces of movement information of one or more past nearby vehicles.
    Type: Application
    Filed: August 2, 2023
    Publication date: April 4, 2024
    Inventors: Kyu Hwan YEON, Hayoung KIM
  • Patent number: 11945744
    Abstract: Disclosed are a method and apparatus for reusing wastewater. The method for reusing wastewater disclosed herein includes: generating a mixed wastewater by mixing multiple types of wastewater (S20); performing a first purification by passing the mixed wastewater through a flocculation-sedimentation unit (S40); performing a second purification by passing an effluent of the flocculation-sedimentation unit through a membrane bioreactor (MBR) (S60); performing a third purification by passing an effluent of the MBR through a reverse-osmosis membrane unit (S80); and reusing an effluent of the reverse-osmosis membrane unit as cooling water or industrial water (S100).
    Type: Grant
    Filed: April 14, 2023
    Date of Patent: April 2, 2024
    Assignees: SAMSUNG ENGINEERING CO., LTD., SAMSUNG ELECTRONICS CO., LTD
    Inventors: Seok Hwan Hong, Dae Soo Park, Seung Joon Chung, Yong Xun Jin, Jae Hyung Park, Jae Hoon Choi, Jae Dong Hwang, Jong Keun Yi, Su Hyoung Cho, Kyu Won Hwang, June Yurl Hur, Je Hun Kim, Ji Won Chun
  • Patent number: 11950489
    Abstract: A deposition mask for manufacturing a display panel includes a metallic base having a thickness of about 50 micrometers to about 200 micrometers and a plurality of openings defined therein, wherein at least some of the openings include a first opening having a first width and a second opening having a second width smaller than the first width respectively defined along a thickness direction of the metallic base, and wherein the metallic base includes a first part in which the first opening is defined, and a second part in which the second opening is defined, the second part having a width that increases in a direction downward from a top surface of the metallic base along the thickness direction of the metallic base.
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: April 2, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyu Hwan Hwang, Jeongkuk Kim, Hwi Kim, Kanghyun Nam, Sangha Park, Areum Lee, Da-Hee Jeong, Eunbee Jo, Seungmin Jin, Jaemin Hong
  • Patent number: 11943985
    Abstract: Discussed are a light-emitting device and a light-emitting display device having improved efficiency and increased lifespan. A plurality of stacks is provided between an anode and a cathode for at least a subpixel to emit a predetermined color, and emissive layers in different stacks include the same color-based materials having different luminous properties.
    Type: Grant
    Filed: June 7, 2021
    Date of Patent: March 26, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jin Ho Park, Kyu Il Han, Chang Hwan Kwak, Dong Hyeok Lim, Hwa Yong Shin, Ji Hyung Lee
  • Publication number: 20240099099
    Abstract: An organic light-emitting display device includes a first pattern electrode, a second pattern electrode, and a third pattern electrode, each being electrically connected to a driving electrode, an organic light-emitting structure disposed on the first to third pattern electrodes, a common electrode disposed on the organic light-emitting structure, and a resonance-adjusting pattern disposed between the first pattern electrode and the organic light-emitting structure, the resonance-adjusting pattern overlapping a first light-emitting area in a plan view and including a conductive oxide. The organic light-emitting structure includes a hole-transporting layer, a light-emitting layer, and an electron-transporting layer. The light-emitting layer includes a common light-emitting layer continuously extending in the organic light-emitting structure, and a light-emitting pattern overlapping the third pattern electrode in a plan view.
    Type: Application
    Filed: June 17, 2020
    Publication date: March 21, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Kyu Hwan HWANG, Duck Jung LEE
  • Publication number: 20240097466
    Abstract: Disclosed is a high voltage output device having a serial-parallel stack structure of capacitors. The high voltage output device includes a substrate includes a capacitor element and a pillar structure provided on an upper surface of the substrate. The substrate includes a first electrode and a second electrode, which have different potentials from each other. The capacitor element is connected to at least one of the first electrode and the second electrode.
    Type: Application
    Filed: November 16, 2023
    Publication date: March 21, 2024
    Applicant: JEISYS MEDICAL INC.
    Inventors: Seung Wook LEE, Seung In KANG, Yeong Gi JEON, Si Youn KIM, Kyu Young SEO, Min Young KIM, Won Ju YI, Dong Hwan KANG
  • Publication number: 20240099114
    Abstract: A display device may include a first electrode, a second electrode, an emission layer, an intervening layer, and a first encapsulation layer. The second electrode may overlap the first electrode. The emission layer may be disposed between the first electrode and the second electrode, may overlap the first electrode, and may include a light emitting material. The intervening layer may directly contact the second electrode, may be spaced from each of the first electrode and the emission layer, and may include a fluorine compound. A first section of the first encapsulation layer may overlap the emission layer. The intervening layer may be positioned between the second electrode and a second section of the first encapsulation layer.
    Type: Application
    Filed: November 24, 2023
    Publication date: March 21, 2024
    Inventors: Jae Sik KIM, Jae Ik KIM, Jung Sun PARK, Seung Yong SONG, Duck Jung LEE, Yeon Hwa LEE, Joon Gu LEE, Kyu Hwan HWANG
  • Patent number: 11926310
    Abstract: Controlling a speed limit includes determining a virtual vehicle speed as being a lower one of a vehicle speed and a target limit speed, determining a virtual APS value as being a larger one of a first APS value and a second APS value, transitioning to a second mode at a point in time at which an actual APS value and the second APS value become different, when it is expected to transition to the second mode, among a first mode for sustaining a SOC of a battery at the target limit speed and the second mode for depleting the SOC, and determining a transmission gear position by applying the determined virtual vehicle speed and the determined virtual APS value to one of a first shifting pattern and a second shifting pattern.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: March 12, 2024
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Hui Un Son, Sang Joon Kim, Kyu Hwan Jo, Sung Bae Jeon, Sung Hoon Yu, Joo Young Kim, Jin Kyeom Cho
  • Publication number: 20240071071
    Abstract: In an embodiment an apparatus includes a processor configured to generate a feature extraction module using a dataset in which an attribute for each object is defined, receive an image obtained by a camera, extract an attribute of an object of interest from the image using the learned feature extraction module, identify an object re-identification candidate group based on the extracted attribute of the object of interest and re-identify the object of interest based on the identified object re-identification candidate group.
    Type: Application
    Filed: April 13, 2023
    Publication date: February 29, 2024
    Inventors: Hyeon Seok Jung, Kyung Hwan Cho, Moon Sub Jin, Kyu Sang Choi, Bum Sub Ham, Chan Ho Eom, Geon Lee
  • Publication number: 20240067079
    Abstract: A brake lamp control method of a vehicle is provided. The method includes determining whether a deceleration of the vehicle based on regenerative brake through the electric motor is present in a hysteresis period between an off threshold as a reference for turning off a brake lamp and an on threshold as a reference for turning on the brake lamp. When the deceleration of the vehicle is present in the hysteresis period, the method includes determining a state of the brake lamp before the deceleration of the vehicle enters the hysteresis period. In response to determining that the brake lamp is turned on or off for a reason except for the regenerative brake before the deceleration of the vehicle enters the hysteresis period, a request for turning on the brake lamp is set or reset based on the regenerative brake in response to the determined state of the brake lamp.
    Type: Application
    Filed: November 2, 2023
    Publication date: February 29, 2024
    Inventors: Hui Un Son, Sang Joon Kim, Kyu Hwan Jo, Sung Bae Jeon, Sung Hoon Yu, Joo Young Kim, Jin Kyeom Cho
  • Patent number: 11912168
    Abstract: An apparatus and method control regenerative braking torque of an electric vehicle on which an anti-lock brake system (ABS) is mounted. The apparatus and method can compensate the regenerative braking torque of the driving motor based on the behavior model of the electric vehicle, such that the ABS is prevented from entering an operating range to the maximum limit to maximize the energy recovery rate through regenerative braking. The apparatus includes a disturbance extractor that extracts a disturbance in a specific frequency band from a difference between a behavior model and an actual behavior of the electric vehicle. The apparatus includes a torque compensator that compensates for the regenerative braking torque based on the disturbance extracted by the disturbance extractor.
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: February 27, 2024
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Sang Joon Kim, Hui Un Son, Sung Hoon Yu, Joo Young Kim, Kyu Hwan Jo
  • Patent number: 11914572
    Abstract: Technologies are described providing adaptive query routing in a replicated database environment. The technologies can be used with a variety of replication protocols. Prepared statements, such as for queries, from a database client can be routed to a source node, or a source node and available replica nodes, when a replica node becomes unavailable. When a replica node becomes available again, a prepared statement can be updated to indicate that the updated prepared statement can be executed at nodes including the replica node that is available again. Prepared statement routing can also be used when a portion of replicated data becomes unavailable at a replica node, but a portion of replicated data remains available.
    Type: Grant
    Filed: December 22, 2022
    Date of Patent: February 27, 2024
    Assignee: SAP SE
    Inventors: Juchang Lee, Kyu Hwan Kim, Joo Yeon Lee, Kyungyul Park, Deok Hoe Kim
  • Publication number: 20240042493
    Abstract: A spray unit in which a plurality of nozzle heads are integrally coupled and a substrate treatment apparatus including the spray unit are provided. The substrate treatment apparatus includes: a substrate support unit supporting a substrate and including a spin head, which rotates the substrate; a treatment liquid retrieval unit retrieving substrate treatment liquids used in treating the substrate; and a spray unit including a plurality of nozzle heads and pipes, which are connected to the nozzle heads, and providing the substrate treatment liquids onto the substrate through the nozzle heads and the pipes, wherein the nozzle heads are moved at the same time.
    Type: Application
    Filed: July 7, 2023
    Publication date: February 8, 2024
    Inventors: Myung A. JEON, Young Seop Choi, Young Jin Kim, Eun Hyeok Choi, Bok Kyu Lee, Je Myung Cha, Kyu Hwan Chang
  • Publication number: 20240043006
    Abstract: Provided are a method and apparatus for generating a virtual stop line, wherein the method includes determining a target crosswalk from among one or more crosswalks on a driving route, setting a region of interest for the target crosswalk, and determining whether or not to generate a virtual stop line, on the basis of a location of a pedestrian within the region of interest.
    Type: Application
    Filed: August 1, 2023
    Publication date: February 8, 2024
    Inventors: Chan Ho KO, Jin Soo Yang, Kyu Hwan Yeon
  • Publication number: 20240025884
    Abstract: Provided herein are novel compounds, e.g., those of Formula (I), as GCN2 inhibitors. Also provided are pharmaceutical compositions including one or more of the novel compounds, and pharmaceutical uses thereof. Compounds provided herein can typically inhibit an activity of a GCN2 and thus can be used for treating or preventing diseases related thereto.
    Type: Application
    Filed: July 5, 2022
    Publication date: January 25, 2024
    Inventors: Cheonhyoung Park, Kimoon Ryu, Tae-Hun Kim, Ha Yoon Kim, Eunhye Ju, Hyung Ki Lee, Youngjee Jeong, Doyoung Choi, Jun Hwan Moon, Nayeon Park, Iksoo Jang, Kyu Hwan Kim, Hyangsoo Lee, Min Jung Lee
  • Patent number: 11874746
    Abstract: Technologies are described for facilitating database system recovery in a distributed database environment having a master node and at least one slave node. The master node maintains an in-memory reference that includes transaction identifiers and their corresponding commit identifiers. When a slave node requests that a commit identifier be assigned to a transaction, the transaction and commit identifiers for the transaction are added to the in-memory reference. The commit identifier is sent by the master node to the slave node. The slave node writes a log entry to a commit log that includes the transaction identifier and the assigned commit identifier. If the database system is interrupted before the slave node writes the commit log entry, the slave node can request the commit identifier for the transaction from the master node, which retrieves the identifier from the in-memory reference.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: January 16, 2024
    Assignee: SAP SE
    Inventors: Christian Bensberg, Steffen Geissinger, Juchang Lee, Chang Gyoo Park, Kyu Hwan Kim, Deok Koo Kim
  • Patent number: 11871643
    Abstract: A display device may include a first electrode, a second electrode, an emission layer, an intervening layer, and a first encapsulation layer. The second electrode may overlap the first electrode. The emission layer may be disposed between the first electrode and the second electrode, may overlap the first electrode, and may include a light emitting material. The intervening layer may directly contact the second electrode, may be spaced from each of the first electrode and the emission layer, and may include a fluorine compound. A first section of the first encapsulation layer may overlap the emission layer. The intervening layer may be positioned between the second electrode and a second section of the first encapsulation layer.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: January 9, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae Sik Kim, Jae Ik Kim, Jung Sun Park, Seung Yong Song, Duck Jung Lee, Yeon Hwa Lee, Joon Gu Lee, Kyu Hwan Hwang