Patents Assigned to Seoul National University R&DB Foundation
  • LIGHT-EMITTING DEVICE, DISPLAY APPARATUS INCLUDING THE SAME, AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20240006554
    Abstract: A light-emitting device may include a plurality of light-emitting rods. Each of the plurality of light-emitting rods may include a first semiconductor layer having a rod shape, an active layer having a shell shape disposed about a plurality of surfaces of the first semiconductor layer, and a second semiconductor layer having a shell shape disposed about a plurality of surfaces of the active layer. The light emitting device may further include an insulating layer disposed in spaces between the plurality of light-emitting rods; a transparent electrode electrically connected to the first semiconductor layer of each of the plurality of light-emitting rods; and a reflective electrode electrically connected to the second semiconductor layer of each of the plurality of light-emitting rods.
    Type: Application
    Filed: June 28, 2023
    Publication date: January 4, 2024
    Applicants: SAMSUNG ELECTRONICS CO., LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Dongho KIM, Ho Won JANG, Kyungwook HWANG, Junsik HWANG, Sohyeon PARK, Jehong OH, Jungel RYU
  • Device and method for detecting concentration of specimen
    Patent number: 11860107
    Abstract: A device and a method of detecting a concentration of a sample are provided. The device includes a power supply unit configured to supply power to generate plasma, a plasma generation unit connected to the power supply unit and including a pair of electrodes facing each other, a plurality of signal detection units arranged on the pair of electrodes and configured to sense light emitted from the sample because of the plasma, and a controller configured to control a driving start point of the signal detection unit so that the signal detection unit is driven after a preset period of time after oscillation is terminated between the pair of electrodes.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: January 2, 2024
    Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Jai Ick Yoh, Jun Ho Yang, Jae Hun Jung
  • Apparatus for performing class incremental learning and method of operating the apparatus
    Patent number: 11861504
    Abstract: A method of performing a class incremental learning in a neural network apparatus, the method including training an autoencoder using first input embeddings with respect to a first class group, calculating a contribution value of each of parameters of the autoencoder and calculating a representative value with respect to each of at least one first class included in the first class group in the training of the autoencoder, retraining the autoencoder using second input embeddings with respect to a second class group, and updating the contribution value of the each of the parameters and calculating a representative value with respect to each of at least one second class included in the second class group in the retraining the autoencoder.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: January 2, 2024
    Assignees: Samsung Electronics Co., Ltd., Seoul National University R&DB Foundation
    Inventors: Donghyun Lee, Euntae Choi, Kyungmi Lee, Kiyoung Choi
  • Motor driving device and method
    Patent number: 11863095
    Abstract: A motor driving device drives a motor having a plurality of windings corresponding to a plurality of phases. The motor driving device includes: a first inverter configured to include a plurality of first switching elements and connected to first stages of the plurality of windings; a second inverter configured to include a plurality of second switching elements and connected to second stages of the plurality of windings; and a controller configured to fix switching states of the second switching elements and switch the first switching elements to compose target voltage vectors if the motor is driven in an open end winding type by operating the first inverter and the second inverter in a space vector pulse width modulation mode.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: January 2, 2024
    Assignees: Hyundai Motor Company, Kia Corporation, Seoul National University R & DB Foundation
    Inventors: Kang Ho Jeong, Sang Cheol Shin, Yong Jae Lee, Jung Ik Ha, Hyeon Gyu Choi, Jae Hoon Shim
  • METHOD OF MANUFACTURING MICRO-LIGHT EMITTING DIODE AND METHOD OF MANUFACTURING DISPLAY APPARATUS BY USING THE SAME
    Publication number: 20230420604
    Abstract: Provided are a method of manufacturing a micro-LED and a method of manufacturing a display apparatus to which the method is applied. In the method of manufacturing a micro-LED, a membrane formed to include a cavity is formed on a substrate, and then, a sacrificial layer that may be selectively removed by wet etching is formed on the membrane. Next, a light-emitting device is formed on the sacrificial layer, and the light-emitting device is separated from the membrane by the wet etching. In an example, an undoped semiconductor layer may further be formed between the membrane and the sacrificial layer. The sacrificial layer may include an oxide layer having the same crystal lattice structure as that of the undoped semiconductor layer. In an example, another undoped semiconductor layer may further be formed between the sacrificial layer and the light-emitting device.
    Type: Application
    Filed: June 27, 2023
    Publication date: December 28, 2023
    Applicants: Samsung Electronics Co., Ltd., Seoul National University R&DB Foundation
    Inventors: Dongho KIM, Howon Jang, Jehong OH, Kyungwook Hwang, Junsik Hwang
  • Method for manufacturing PDMS device and PDMS device manufactured thereby
    Patent number: 11850805
    Abstract: A method for manufacturing a PDMS device in accordance with an exemplary embodiment of the present invention surface treats the entire surface of a pattern with a thiol group (—SH), so that a hydrogel may be connected to the surface of the pattern by a covalent bond under ultraviolet rays. Therefore, a PDMS device manufactured by the above method has an advantage in that the shape thereof may be stably maintained without the swelling or desorption of a hydrogel even when an electrolyte is filled in a pattern.
    Type: Grant
    Filed: July 1, 2021
    Date of Patent: December 26, 2023
    Assignee: SEOUL NATIONAL UNIVERSITY R & DB FOUNDATION
    Inventors: Taek Dong Chung, Young-Chang Joo, Jeong-Yun Sun, Seok Hee Han, Sung Il Kim, Hae-Ryung Lee, Seung-Min Lim
  • Antenna apparatus
    Patent number: 11855355
    Abstract: An antenna apparatus includes a patch antenna pattern; a first feed via to feed power to the patch antenna pattern in a non-contact manner on a first side of the patch antenna pattern; and a plurality of feed patterns disposed on the first side of the patch antenna pattern on different levels and overlapping each other, and including at least one feed pattern that is electrically connected to the first feed via, and each having a width greater than a width of the first feed via and a cross-sectional area smaller than a cross-sectional area of the patch antenna pattern.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: December 26, 2023
    Assignees: Samsung Electro-Mechanics Co., Ltd., Seoul National University R&DB Foundation
    Inventors: Ju Hyoung Park, Jung Woo Seo, Jung Suek Oh, Jeong Ki Ryoo, Kyu Bum Han
  • Stretchable sensor and method of manufacturing the same and wearable device
    Patent number: 11856691
    Abstract: A stretchable sensor includes a stretchable layer including an elastomer, and a conductive layer at least partially buried in the stretchable layer and including a conductive nanostructure. The stretchable layer includes a plurality of first regions including a ferromagnetic material buried in the elastomer, and a second region excluding the plurality of first regions.
    Type: Grant
    Filed: October 7, 2021
    Date of Patent: December 26, 2023
    Assignees: Samsung Electronics Co., Ltd., Seoul National University R&DB Foundation
    Inventors: Yongtaek Hong, Hyeon Cho, Byeongmoon Lee
  • Vehicle-type mobile infectious disease clinic
    Patent number: 11850190
    Abstract: The present disclosure relates to a vehicle-type mobile infectious disease clinic, and more particularly, to a mobile infectious disease clinic, which is a vehicle-type mobile infectious disease clinic, that allows a test subject to be tested by a healthcare provider using an infectious disease test kit while exposure of the body parts is minimized and the healthcare provider and the test subject are isolated in the vehicle-type mobile infectious disease clinic, that performs sterilization of an infectious disease using an ultraviolet C (UV-C) lamp to reduce the time taken for disinfecting the clinic, and that allows the light radiation intensity of the UV-C lamp to be adaptively adjusted according to the body temperature of the test subject.
    Type: Grant
    Filed: February 17, 2022
    Date of Patent: December 26, 2023
    Assignees: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY, SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, KOREA ENGINEERING & CLEAN TECHNOLOGY CO., LTD.
    Inventors: Kwang Suk Lee, Kyo Chul Koo, Hyung Min Park, Joo Yeon Park, Ye Eun Kang, Seok Gyu Park, Dae Sick Choi, Seon Il Kim, Sun Ju Lee
  • METHOD OF FORMING A WIRING STRUCTURE, METHOD OF MANUFACTURING A SEMICONDUCTOR DEVICE USING THE SAME, AND SEMICONDUCTOR DEVICE MANUFACTURED BY THE SAME METHOD
    Publication number: 20230411161
    Abstract: In a method, an electrode layer and an insulation layer are alternately and repeatedly stacked on a substrate. A first insulation layer is etched through a first dry etching process using an etching gas including fluorine to form an opening exposing a first electrode layer. The first electrode layer exposed by the opening is partially removed through an RIE process using oxygen and/or hydrogen plasma to enlarge the opening so that a second insulation layer is exposed. The second insulation layer exposed by the opening is etched through a second dry etching process using an etching gas including fluorine to enlarge the opening so that a second electrode layer is exposed. A contact plug is formed in the enlarged opening.
    Type: Application
    Filed: May 11, 2023
    Publication date: December 21, 2023
    Applicant: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Minsik KIM, Gwanhyoung LEE, Sukhoon KIM, Yongjun SHIN
  • Gene manipulation for treatment of retinal dysfunction disorder
    Patent number: 11845951
    Abstract: The present invention relates to a composition for gene manipulation for treating or improving a retinal dysfunction disease or a method using the same. More particularly, the present invention relates to a composition for gene manipulation including a guide nucleic acid capable of targeting a retinal function-forming gene and a method of treating or improving a disease caused by retinal dysfunction by artificially manipulating and/or correcting a retinal function-forming gene using the same.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: December 19, 2023
    Assignees: TOOLGEN INCORPORATED, SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, SEOUL NATIONAL UNIVERSITY HOSPITAL
    Inventors: Dong Woo Song, Jung Min Lee, Un Gi Kim, Jeong Hun Kim, Dong Hyun Jo
  • Method and composition for sorting out of cell comprising a modified gene
    Patent number: 11846627
    Abstract: Provided is a method for more efficiently sorting out genetically modified cells. Specifically provided are a method for selecting a cell including a modified gene on a target locus in a genome, a method for producing a cell including a modified gene on a target locus in a genome, and an animal including a modified gene on a target locus in a genome, and a kit for selecting an animal including a modified gene on a target locus in a genome and cells including a modified gene on a target locus in a genome.
    Type: Grant
    Filed: January 4, 2022
    Date of Patent: December 19, 2023
    Assignees: LART BIO CO., LTD, SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Goo Jang, Gyeongmin Gim, Dong Hyeok Kwon, Wonyou Lee
  • Electronic device and method of transferring electronic element using stamping and magnetic field alignment
    Patent number: 11848303
    Abstract: The present disclosure provides a method of transferring an electronic element using a stamping and magnetic field alignment technology and an electronic device including an electronic element transferred using the method. In the present disclosure, a polymer may be simultaneously coated on a plurality of electronic elements using the stamping process, and the polymer may be actively coated on the electronic elements without restrictions on process parameters such as size and spacing of the electronic elements. Moreover, the self-aligned ferromagnetic particles have an anisotropic current flow through which current flows only in the aligned direction. Therefore, the current may flow only vertically between the electronic element and the electrode, and there is no electrical short circuit between a peripheral LED element and the electrode.
    Type: Grant
    Filed: May 13, 2022
    Date of Patent: December 19, 2023
    Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Yongtaek Hong, Hyungsoo Yoon, Eunho Oh, Byeongmoon Lee, Sujin Jeong
  • METHOD AND TERMINAL FOR PERFORMING SCHEDULING
    Publication number: 20230401091
    Abstract: A single terminal performs scheduling of processing a request from a plurality of applications by using heterogeneous processors. The single terminal may include an analysis unit partitioning a request from an application in units and generating at least one subgraph, a profiling unit predicting an operation execution time for at least one frequency of at least one processor capable of processing the subgraph, and a scheduler performing scheduling based on a request from the application and the operation execution time.
    Type: Application
    Filed: February 9, 2023
    Publication date: December 14, 2023
    Applicant: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Youngki LEE, Changjin JEONG, Jingyu LEE, Changmin JEON, Joo Seong JEONG, Byung-Gon CHUN, Donghyun KIM
  • STRETCHABLE DISPLAY HAVING NEGATIVE POISSON'S RATIO
    Publication number: 20230400884
    Abstract: Provided is a stretchable display having a negative Poisson's ratio including: a first core on which a first light-emitting element is installed; a second core positioned next to the first core and on which a second light-emitting element is installed; multiple first wires coming out from one side of the first core and wound in one direction around the first core; and multiple second wires coming out from one side of the second core and wound in the opposite direction to the first wire around the second core, wherein any of the multiple first wires and any of the multiple second wires are connected between the first core and the second core in a connection part, and when a distance between the first core and the second core increases, the first wires are unwound while the first core rotates, and the second wires are unwound while the second core rotates.
    Type: Application
    Filed: August 12, 2021
    Publication date: December 14, 2023
    Applicant: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Insuk CHOI, Yu-Ki LEE, Hyunwoo KIM, Jaeyoung CHOI
  • PHARMACEUTICAL COMPOSITION, FOR PREVENTING OR TREATING TENDON OR LIGAMENT DISEASES, COMPRISING UMBILICAL CORD-DERIVED STEM CELLS AS ACTIVE INGREDIENT
    Publication number: 20230398156
    Abstract: A composition having umbilical cord-derived stem cells as an active ingredient is disclosed. The composition containing umbilical cord-derived stem cells as an active ingredient, can prevent, relieve, or treat a tendon or ligament disease by regenerating and reconstructing a damaged tendon without side effects when applied for a tendon disease.
    Type: Application
    Filed: May 18, 2021
    Publication date: December 14, 2023
    Applicants: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, ACESOSTEM BIOSTRATEGIES INC.
    Inventors: Hyun Chul JO, Ji-Hye YEA
  • MULTI-DOF MOVING STAGE AND DISPLAY APPARATUS USING THE SAME
    Publication number: 20230400698
    Abstract: A multi-degree of freedom (DOF) moving stage includes a plurality of joint portions. At least one of the plurality of joint portions has a joint structure including a first flexible member and first and second rigid members, the first and second rigid members being arranged apart from each other with a first gap therebetween such that the first gap exposes a first surface of the first flexible member. Castellated patterns having shapes complementary to each other are respectively provided at a first end portion of the first rigid member adjacent to the first gap and a second end portion of the second rigid member adjacent to the first gap.
    Type: Application
    Filed: June 14, 2023
    Publication date: December 14, 2023
    Applicants: SAMSUNG ELECTRONICS CO., LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Jangwoo YOU, Yongmin PARK, Jesung KOH, Changkun LEE, Sunpil JEONG, Kyujin CHO
  • MEMORY TEST DRIVE
    Publication number: 20230401133
    Abstract: A memory test device is provided including a command feature vector extractor and an address feature vector extractor. The command feature vector extractor extracts a command feature vector, based commands executed on memory cells among a plurality of memory cells. The address feature vector extractor extracts an address feature vector, based on address-related information indicating locations of the memory cells executing the commands.
    Type: Application
    Filed: April 17, 2023
    Publication date: December 14, 2023
    Applicant: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: U KANG, Su Hyun CHAE, Jong Min PARK, Jun-Gi JANG, Ji Yong LEE, Sooyeon SHIM, Vladimir Vladimirovich EGAY
  • HOLOGRAM PROFILE OPTIMIZATION METHOD, HOLOGRAM PROFILE GENERATION DEVICE, AND HOLOGRAPHIC DISPLAY DEVICE TO WHICH HOLOGRAM PROFILE OPTIMIZATION METHOD IS APPLIED
    Publication number: 20230400811
    Abstract: A hologram profile optimization method includes: setting a first hologram profile as a variable; and performing an optimization cycle a predetermined number of times, wherein the optimization cycle includes encoding the first hologram profile into a binary hologram profile by using an ApproxSign function; calculating a field value of a holographic image on a display surface for the binary hologram profile, considering high-order diffraction term noise of the holographic image by using a tiling function; calculating an intensity of the holographic image on the display surface; calculating a loss function value based on a difference between the intensity of the holographic image and an intensity of a target image; and updating the first hologram profile to a second hologram profile based on the loss function value.
    Type: Application
    Filed: March 2, 2023
    Publication date: December 14, 2023
    Applicants: SAMSUNG ELECTRONICS CO., LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Seokil MOON, Dongheon YOO, Changkun LEE, Byoungho LEE, Minseok CHAE
  • RETINAL PROJECTION DISPLAY DEVICE AND PHASE PROFILE OPTIMIZATION METHOD THEREOF
    Publication number: 20230400683
    Abstract: A retinal projection display device is provided. The retinal projection display device includes a light source configured to emit light, a spatial light modulator configured to generate diffracted light by diffracting the emitted light, a holographic optical element configured to reflect the diffracted light by duplicating the diffracted light into a plurality of complex wavefronts, and a field lens configured to focus the plurality of complex wavefronts to a plurality of respective focal points in an eye-box, wherein the plurality of complex wavefronts overlap each other.
    Type: Application
    Filed: March 3, 2023
    Publication date: December 14, 2023
    Applicants: SAMSUNG ELECTRONICS CO., LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Seokil MOON, Minseok CHAE, Changkun LEE, Dongheon YOO, Byoungho LEE