Patents by Inventor Keun Lee

Keun 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).

  • Patent number: 11928588
    Abstract: Disclosed is an in-memory device for operation of a multi-bit weight. A multi-bit memory cell array according to an exemplary embodiment of the present invention includes at least one multi-bit unit which stores input data based on an input signal and outputs a per-group sum value summed for every group by applying a multi-bit weight to the stored input data; and a final summation unit which is connected to at least one multi-bit unit, adjusts a ratio for every group to receive the peer-group sum value, and outputs a final output value by summing the input per-group sum value.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: March 12, 2024
    Assignee: UIF (University Industry Foundation), Yonsei University
    Inventors: Seong Ook Jung, Hong Keun Ahn, Young Kyu Lee
  • Publication number: 20240079529
    Abstract: A light-emitting element includes a first semiconductor layer, a light-emitting layer disposed on the first semiconductor layer, a second semiconductor layer disposed on the light-emitting layer, a device electrode layer disposed on the second semiconductor layer, a reflective electrode layer disposed on the device electrode layer, an insulating film surrounding a side surface of the light-emitting layer, a side surface of the second semiconductor layer, and a side surface of the device electrode layer, and a reflective layer surrounding a side surface of the insulating film, wherein the side surface of the device electrode layer is aligned with a side surface of the reflective electrode layer.
    Type: Application
    Filed: April 10, 2023
    Publication date: March 7, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Ji Hyun HAM, Moon Jung AN, Jin Seok PARK, Hee Keun LEE, Sung Chan JO, Sang Wook HAN
  • Publication number: 20240078974
    Abstract: A display device including: a power supply configured to supply a first power, a second power, and a third power to a first power line, a second power line, and a third power line, respectively, wherein each of the first power, the second power and the third power varies in voltage level during one frame period; and pixels connected to at least one of scan lines and data lines, and connected to a common control line, the first power line, the second power line, and the third power line, wherein the pixels simultaneously emit light when the second power is changed to a low level, and a number of times the second power is changed to the low level during the one frame period changes in response to an image refresh rate.
    Type: Application
    Filed: June 6, 2023
    Publication date: March 7, 2024
    Inventors: Hong Soo KIM, Myung Woo LEE, Suk Hun LEE, Jae Keun LIM
  • Publication number: 20240081146
    Abstract: An organic light emitting diode (OLED) includes an emissive layer with at least one emitting part includes at least one emitting material layer, a first electron transport layer and a second electron transport layer disposed sequentially between two facing electrodes, wherein the first electron transport layer includes a first electron transporting material of a benzimidazole-based compound substituted with at least one spiro-structured fluorenyl group and the second electron transport layer includes a second electron transporting material of a benzimidazole-based compound substituted with at least one anthracenyl group. The first electron transport including the first electron transport material with excellent thermal stability is disposed adjacently to the emitting material layer so that the OLED can maintain good luminescent intensity in an environment of high temperature and implement beneficial luminous properties.
    Type: Application
    Filed: July 6, 2023
    Publication date: March 7, 2024
    Inventors: Yu-Jeong LEE, Jung-Keun KIM, Mi-Young HAN, Min-Hyeong HWANG
  • Patent number: 11920856
    Abstract: A refrigerator includes a storage chamber having an opening; a drawer type door to open or close the opening; a display positioned at the drawer type door; a first connector provided at a sidewall of the storage chamber; a second connector provided at the drawer type door and being electrically connected to the display; a first frame coupled to an inner wall of the storage chamber, the first frame to cover the first connector; a second frame coupled to the drawer type door, the second frame to support a storage box; and a wire electrically connected between the first connector and the second connector. The first frame has a first accommodating part to accommodate one portion of the wire and the second frame has a second accommodating part to accommodate another portion of the wire.
    Type: Grant
    Filed: October 13, 2020
    Date of Patent: March 5, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae Myung Han, Jae Hoon Lim, Gi Joong Jeong, Woo Yeol Yoo, Jong Eun Chae, Sun keun Lee
  • Patent number: 11925047
    Abstract: Disclosed are a light-emitting device and a display device including the same. An emissive layer is formed so as to have a dual-layer structure, the triplet energy level of a dopant of a first emissive layer adjacent to a hole transport layer is greater than the triplet energy level of a first host in the first emissive layer, and the triplet energy level of the first host is greater than the triplet energy level of a second host of a second emissive layer, whereby triplet excitons generated in the first emissive layer are recycled to the second emissive layer so as to be reused for light emission.
    Type: Grant
    Filed: May 26, 2021
    Date of Patent: March 5, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Chun Ki Kim, Jung Keun Kim, Yu Jeong Lee, Wook Song
  • Publication number: 20240067668
    Abstract: The present invention relates to a heteroaryl derivative compound and a use thereof. Since the heteroaryl derivative of the present invention exhibits excellent inhibitory activity against EGFR, the heteroaryl derivative can be usefully used as a therapeutic agent for EGFR-associated diseases.
    Type: Application
    Filed: December 29, 2021
    Publication date: February 29, 2024
    Inventors: Yi Kyung Ko, Ah Reum Han, Jin Hee Park, Yeong Deok Lee, Hye Rim Im, Kyun Eun Kim, Dong Keun Hwang, Su Been Nam, Myung Hoe Heo, Se Rin Cho, Eun Hwa Ko, Sung Hwan Kim, Hwan Geun Choi
  • Publication number: 20240072787
    Abstract: Disclosed are a circuit and a system which is capable of improving reliability by preventing destructive overvoltage that occurs in an element using a low power supply voltage when various signals are transmitted from an integrated circuit with a high power supply voltage to an integrated circuit with a low power supply voltage.
    Type: Application
    Filed: February 2, 2023
    Publication date: February 29, 2024
    Applicant: Haechitech Corporation
    Inventors: Tae Woo OH, Sung Keun LEE
  • Patent number: 11917129
    Abstract: An image decoding method according to the present invention includes: a step for determining a reference sample line of a current block; a step for determining whether candidate intra-prediction modes identical to the intra-prediction mode of the current block exist; a step for deriving the intra-prediction mode of the current block on the basis of the determination; and a step for performing intra-prediction on the current block on the basis of the reference sample line and the intra-prediction mode. Here, at least one of the candidate intra prediction modes may be derived by adding or subtracting an offset to or from the maximum value among the intra-prediction mode of a neighboring block that is above the current block and the intra-prediction mode of a neighboring block that is to the left of the current block.
    Type: Grant
    Filed: December 7, 2021
    Date of Patent: February 27, 2024
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventor: Bae Keun Lee
  • Patent number: 11917199
    Abstract: Image encoding/decoding methods and apparatuses according to the present invention may generate a prediction block of a current block based on a pre-defined prediction mode, generate a transform block of the current block through predetermined transformation, and reconstruct the current block based on the prediction block and the transform block.
    Type: Grant
    Filed: October 31, 2022
    Date of Patent: February 27, 2024
    Assignee: INTELLECTUAL DISCOVERY CO., LTD.
    Inventors: Bae Keun Lee, Dong San Jun
  • Patent number: 11912102
    Abstract: An air conditioner for a vehicle including an air-conditioning case divided into a plurality of air passageways by a separation wall. A heating heat exchanger is disposed inside the air-conditioning case and exchanges heat with air to heat the interior of the vehicle. A perforated member is disposed at a downstream side of the heating heat exchanger and has a plurality of perforated holes through which the air passing the heating heat exchanger passes, and a partition wall is disposed between the heating heat exchanger and the perforated member to divide the air passageway of the air-conditioning case into a plurality of air passageways, wherein the partition wall is formed integrally with the perforated member.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: February 27, 2024
    Assignee: HANON SYSTEMS
    Inventors: Dong Won Lee, Jong Su Kim, Jae Woo Ko, Young Keun Kim, Chang Soo Bae, Jong Min Lee, Gyu Ik Han
  • Patent number: 11912674
    Abstract: The present invention provides methods for treating or ameliorating metabolic diseases, cholestatic liver diseases, or organ fibrosis, which comprises administering to a subject a therapeutically effective amount of a pharmaceutical composition comprising an isoxazole derivative, a racemate, an enantiomer, or a diastereoisomer thereof, or a pharmaceutically acceptable salt of the derivative, the racemate, the enantiomer, or the diastereoisomer.
    Type: Grant
    Filed: March 4, 2021
    Date of Patent: February 27, 2024
    Assignee: IL DONG PHARMACEUTICAL CO., LTD.
    Inventors: Jae-Hoon Kang, Hong-Sub Lee, Yoon-Suk Lee, Jin-Ah Jeong, Sung-Wook Kwon, Jeong-Guen Kim, Kyung-Sun Kim, Dong-Keun Song, Sun-Young Park, Kyeo-Jin Kim, Ji-Hye Choi, Hey-Min Hwang
  • Publication number: 20240059934
    Abstract: A pressure-sensitive adhesive composition for forming a pressure-sensitive adhesive layer, which is applied to a flexible device, thereby effectively responding to repeated deformation and recovery, causing no defects (for example, observation of deformation traces and the like) before and after deformation, having excellent cuttability and workability, causing no lifting, delamination, and/or bubble generation, and exhibiting a transmittance at a level capable of omitting a polarizing plate is provided.
    Type: Application
    Filed: April 15, 2022
    Publication date: February 22, 2024
    Applicant: LG CHEM, LTD.
    Inventors: Seung Yeon RYU, Hyun Cheol KIM, Yeon Keun LEE, Ji Young KIM
  • Patent number: 11905997
    Abstract: A bearing cage includes a first circular ring; a second circular ring provided to be spaced apart from the first ring in a coaxial relationship with the first ring; a plurality of pillars provided in a circumferential direction of the first ring and the second ring, one end of the pillar being connected to the first ring and the other end of the pillar being connected to the second ring; a plurality of pockets provided in the circumferential direction and configured to provide a space in which a bearing roller is accommodated, the pocket being formed to be surrounded by the first ring, the pillars and the second ring; and first reservoirs provided in the pillars and comprising a first storage space for storing lubricant.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: February 20, 2024
    Assignee: BEARINGART
    Inventors: Min Cheol Yeom, Young Keun Lee, Woon Ju Lee
  • Patent number: 11909955
    Abstract: An image decoding method according to the present disclosure may include the steps of: determining whether a combined prediction mode is applied to a current block; when the combined prediction mode is applied to the current block, obtaining first and second prediction blocks with respect to the current block; and, on the basis of a calculation of a weighted sum of the first and second prediction blocks, obtaining a third prediction block with respect to the current block.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: February 20, 2024
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventor: Bae Keun Lee
  • Publication number: 20240056571
    Abstract: An image signal decoding method according to an embodiment of the present disclosure comprises the steps of: partitioning the current picture into a plurality of tiles; decoding partition information indicating a slice type, the partition information indicating whether a rectangular slice is to be applied; determining the number of slices in the current picture; and defining the slices using the tiles.
    Type: Application
    Filed: August 23, 2023
    Publication date: February 15, 2024
    Inventor: Bae Keun Lee
  • Publication number: 20240049934
    Abstract: Provided is a vacuum cleaner including a motor configured to generate a suction force, an inverter configured to convert a DC power of a DC terminal capacitor into an AC power to output to the motor, and a controller configured to apply a control signal of the inverter to drive the motor, in which the controller is further configured to detect an event while the motor is driving, and generate the control signal to generate operation noise of the motor corresponding to the detected event. According to example embodiments of the present specification, it is possible to provide information to a user without a separate element by controlling the driving pattern of the motor in the vacuum cleaner.
    Type: Application
    Filed: December 24, 2021
    Publication date: February 15, 2024
    Applicant: LG ELECTRONICS INC.
    Inventors: Han Su JUNG, Seok Hee CHO, Soong Keun LEE
  • Patent number: 11898788
    Abstract: A refrigerator provides visual information indicating a map of the refrigerator and technical operations of the corresponding regions. The refrigerator includes a voice recognition function using a proximity sensor. The refrigerator has input/output (I/O) management functions for foods stored therein. The refrigerator communicates with a peripheral device over a network.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: February 13, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyoung Ae Lim, Yoo Lim Baek, Mi A Oh, Sae Mi Kim, Da Hey Yoo, Kyung Hoon Lee, Tae Hyoung Cho, Jung Hwi Eun, Ye Kyung Yoo, Mun Keun Lee, Young Bin Jung
  • Publication number: 20240048725
    Abstract: A method of video decoding according to the present invention may comprise determining an intra prediction mode of a current block, determining a DC value using reference samples adjacent to the current block when the intra prediction mode of the current block is a DC mode, and deriving a prediction sample of the current block based on the DC value.
    Type: Application
    Filed: August 29, 2023
    Publication date: February 8, 2024
    Applicant: KT CORPORATION
    Inventor: Bae Keun LEE
  • Patent number: 11893927
    Abstract: A display device includes a processor which supplies grayscale data in active periods of frame periods and stops supply of the grayscale data in blank periods of the frame periods, a timing controller which generates a change signal when a difference between a first blank period of a first frame period and a second blank period of a second frame period is greater than a threshold value, a power supply which supplies a first power voltage having a voltage level changed based on the change signal to a first power line, and pixels commonly connected to the first power line.
    Type: Grant
    Filed: January 6, 2023
    Date of Patent: February 6, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jung Taek Kim, Kyun Ho Kim, Jae Woo Ryu, Joon Suk Baik, Se Keun Lee, Sang Su Han