Patents Assigned to Seoul National University R&DB Foundation
  • Publication number: 20220255722
    Abstract: Disclosed is a calculation device. The present calculation device includes: a memory for storing a plurality of homomorphic ciphertexts for an approximate message including an error; and a processor for sorting the plurality of homomorphic ciphertexts by using a 5-way sorter which can sort five homomorphic ciphertexts in a single stage.
    Type: Application
    Filed: June 5, 2020
    Publication date: August 11, 2022
    Applicants: Crypto Lab Inc., Seoul National University R&DB Foundation
    Inventors: Jung Hee Cheon, Seungwan Hong
  • Publication number: 20220253682
    Abstract: A processor, a method of operating the processor, and an electronic device including the processor are disclosed. The method includes arranging, in respective input registers, weights and activations having a smaller number of bits than a minimum operation unit of an operator included in the processor, performing a multiplication between values stored in the input registers, storing a result of the multiplication in an output register, and outputting, from the output register, a value in a preset bit range as a result of a dot product between a first vector including the weights and a second vector including the activations.
    Type: Application
    Filed: July 14, 2021
    Publication date: August 11, 2022
    Applicants: Samsung Electronics Co., Ltd., Seoul National University R&DB Foundation
    Inventors: Seung Wook LEE, Jaeyeon WON, Jae Wook LEE, Tae Jun HAM
  • Publication number: 20220255517
    Abstract: An amplifying device includes a main amplifier; a first feedback circuit coupled between an input terminal of the main amplifier and an output terminal of the main amplifier; an input coupling circuit coupled between the input terminal of the main amplifier and a first node; and an amplifying feedback circuit coupled between the output terminal of the main amplifier and the first node, wherein the first feedback circuit and the amplifying feedback circuit are negative feedback circuits.
    Type: Application
    Filed: February 3, 2022
    Publication date: August 11, 2022
    Applicant: Seoul National University R&DB Foundation
    Inventors: Junyoung PARK, Suhwan KIM
  • Patent number: 11411069
    Abstract: A semiconductor device including a switching element on a substrate, a pad isolation layer on the switching element, a conductive pad passing through the pad isolation layer and connected to the switching element, an insulating pattern on the pad isolation layer and having a height greater than a horizontal width, a lower electrode on side surfaces of the insulating pattern on side surfaces of the insulating pattern and in contact with the conductive pad, a capacitor dielectric layer on the lower electrode and having a monocrystalline dielectric layer and a polycrystalline dielectric layer, the monocrystalline dielectric layer being relatively close to side surfaces of the insulating pattern compared to the polycrystalline dielectric layer an upper electrode on the capacitor dielectric layer may be provided.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: August 9, 2022
    Assignees: Samsung Electronics Co., Ltd., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Sang Yeol Kang, Kyu Ho Cho, Han Jin Lim, Cheol Seong Hwang
  • Patent number: 11407999
    Abstract: The present invention relates to a pharmaceutical composition for preventing or treating an angiogenesis-related ocular disease comprising an inhibitor of MCT expression or MCT activity as an active ingredient, and it can effectively prevent or treat an angiogenesis-related ocular disease without affecting the normal function of VEGF required for maintaining homeostasis of choriocapillary and visual cells, by specifically inhibiting only VEGF secreted by macrophages, different from conventional treatment.
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: August 9, 2022
    Assignees: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Seung Hyeok Seok, Juha Song, Ki Hwang Lee
  • Patent number: 11408060
    Abstract: The present invention relates to an amorphous alloy having low frictional resistance and capable of improving abrasion resistance, a target made of the amorphous alloy, and a compressor comprising a layer of the amorphous alloy as a coating layer. According to the present invention, it is possible to secure high hardness and a low elastic modulus of the coating layer by controlling a microstructure having an amorphous phase as a primary phase by using Ti-based three-component to five-component amorphous alloys. As a result, it is possible to prevent the coating layer from being peeled off from a matrix or destroyed, and thus it is possible to achieve the effect of improving reliability or durability of a mechanical apparatus such as a compressor.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: August 9, 2022
    Assignees: LG Electronics Inc., Seoul National University R&DB Foundation
    Inventors: Kyoung Jin Ku, Dong Han Kim, Joungwook Kim, Hangjin Ban, Bumdong Sa, Eun Soo Park, Wook Ha Ryu, Kyung-Jun Kim, Jinwoo Kim, Heh Sang Ahn
  • Patent number: 11404705
    Abstract: A plurality of channel elements provided in a bipolar plate have different widths depending on positions, so that the velocity of flow of the fluid increases from an inlet toward an outlet of the bipolar plate and water generated when the fluid is condensed on the downstream side of the bipolar plate can be discharged more smoothly. In addition, a plurality of channel elements have different contact angles depending on positions of the plurality of channel elements so that the contact angle increases toward the outlet side of the bipolar plate. Thus, the reaction gas can be more concentrated on the surface of a gas diffusion layer. Even if the concentration of the reaction gas is reduced at the outlet side of the bipolar plate, the diffusion of the reaction gas is well performed, so that performance reduction can be prevented.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: August 2, 2022
    Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Min Soo Kim, Sung Hoon Choi, Dong Gyun Kang, In Seop Lim
  • Publication number: 20220238633
    Abstract: A thin film laminate structure, an integrated device including the same, and a method of manufacturing the thin film laminate structure are provided. The thin film laminate structure includes two or more dielectric layers, wherein at least one of the dielectric layers of the thin film laminate structure includes a compound represented by Formula 1 and having a perovskite-type crystal structure having a B/B? composition ratio different from that of a remainder of the dielectric layers: AB1-xB?xO3??<Formula 1> wherein, in Formula 1, A, B, B?, and x are the same as defined in the specification.
    Type: Application
    Filed: July 8, 2021
    Publication date: July 28, 2022
    Applicants: Samsung Electronics Co., Ltd., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Kiyoung LEE, Kookrin CHAR, Byunghoon NA, Hahoon LEE, Dowon SONG
  • Publication number: 20220237744
    Abstract: A method with image restoration includes: receiving an input image and a first task vector indicating a first image effect among candidate image effects; extracting a common feature shared by the candidate image effects from the input image, based on a task-agnostic architecture of a source neural network; and restoring the common feature to a first restoration image corresponding to the first image effect, based on a task-specific architecture of the source neural network and the first task vector.
    Type: Application
    Filed: July 20, 2021
    Publication date: July 28, 2022
    Applicants: SAMSUNG ELECTRONICS CO., LTD., Seoul National University R&DB Foundation
    Inventors: Kinam KWON, Heewon KIM, Kyoung Mu LEE, Hyong Euk LEE
  • Patent number: 11398355
    Abstract: Disclosed is a tandem solar cell according to an aspect including: a silicon lower cell; a perovskite upper cell disposed on the silicon lower cell; and a bonding layer for bonding the silicon lower cell and the perovskite upper cell between the silicon lower cell and the perovskite upper cell, wherein the front surface portion of the silicon lower cell being in contact with the bonding layer includes a texture structure, the bonding layer includes a first transparent electrode layer formed on the sidewall of the texture structure, a buried layer filling concave portions of the texture structure on the first transparent electrode layer, and a second transparent electrode layer on top surfaces of the buried layer, the first transparent electrode layer and the texture structure.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: July 26, 2022
    Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Jin Young Kim, Ik Jae Park, Su Geun Ji, You Jin Ahn
  • Patent number: 11397894
    Abstract: A method for pruning a neural network includes initializing a plurality of threshold values respectively corresponding to a plurality of layers included in the neural network; selecting one of the plurality of layers; adjusting the threshold value of the selected layer; and adjusting a plurality of weights respectively corresponding to a plurality of synapses included in the neural network.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: July 26, 2022
    Assignees: SK hynix Inc., Seoul National University R&DB Foundation
    Inventors: Seunghwan Cho, Sungjoo Yoo, Youngjae Jin
  • Publication number: 20220228135
    Abstract: The present invention relates to chimeric endolysin Lys109 which effectively controls Staphylococcus aureus, wherein the endolysin Lys109 of the present invention has a novel amino acid sequence that has not been conventionally studied. Endolysin Lys109 of the present invention can be used as a biological regulator capable of effectively inhibiting a wide range of Staphylococcus aureus and a biofilm produced thereby. In addition, endolysin Lys109 can kill Staphylococcus aureus without regard for resistance to conventional antibiotics, and thus can be widely used for treatment of diseases caused by Staphylococcus aureus infection. Moreover, endolysin Lys109 can also be used to resolve medical problems caused by Staphylococcus aureus which has antibiotic resistance.
    Type: Application
    Filed: April 21, 2020
    Publication date: July 21, 2022
    Applicant: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Sangryeol RYU, Bokyung SON
  • Patent number: 11390582
    Abstract: The present disclosure relates to a 1-(4-benzyloxy-benzyl)-3-methyl-thiourea compound in crystalline forms A, B, C, or amorphous form, a method for preparing the compound in the crystalline or amorphous forms, and a use of the compound for preventing or treating a metabolic disease or inflammatory disease.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: July 19, 2022
    Assignees: Therasid Bioscience Inc., Seoul National University R&DB Foundation
    Inventors: Wooyoung Kwak, Sungki Seo, Heung Jae Kim
  • Publication number: 20220221460
    Abstract: Provided is a method for accurate quantification of a HER2 protein in a breast cancer tissue sample by mass spectrometry and a HER2 scoring based thereon. A method according to the presently claimed subject matter is accurate and can make reproducible measurement compared to conventional methods. If possible, personalized therapy according to the method of the presently claimed subject matter can prolong lives of the patients and exceptionally reduce the socioeconomic cost nationwide.
    Type: Application
    Filed: March 6, 2020
    Publication date: July 14, 2022
    Applicant: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Youngsoo KIM, Han Suk RYU, Hyunsoo KIM, Misol DO
  • Patent number: 11387835
    Abstract: A phase-locked loop includes a bias circuit controlling a first bias current between a first power source and a first node according to a bias control signal; an oscillation circuit coupled between the first node and a second power source and generating an oscillation signal according to a current from the first node; a duplicate bias circuit controlling a second bias current between the first power source and a second node according to the bias control signal; an equivalent impedance circuit coupled between the second node and the second power source; a comparator circuit comparing voltages of the first node and the second node; a first variable current circuit controlling a current between the first node and the second power source; and a second variable current circuit controlling a current between the second node and the second power source.
    Type: Grant
    Filed: October 27, 2021
    Date of Patent: July 12, 2022
    Assignees: SK hynix Inc., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Hyojun Kim, Deog-Kyoon Jeong
  • Patent number: 11387757
    Abstract: A method for estimating a magnet temperature of a rotor magnet within a rotary electric machine includes, while a rotor of the electric machine is stationary, injecting a high-frequency voltage component onto a control voltage of the electric machine, via a controller, to generate an adjusted voltage command, and extracting a high-frequency component of a resulting current as an extracted high-frequency component. The method also includes calculating an inductance value of the electric machine using the extracted high-frequency component of the resulting current. The magnet temperature is estimated using the calculated inductance value and an angular position of the rotor. The method includes controlling an operation of the electric machine using the estimated magnet temperature. An electric powertrain uses the electric machine and controller noted above.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: July 12, 2022
    Assignees: GM Global Technology Operations LLC, Seoul National University R & DB Foundation
    Inventors: Daniel J. Berry, Anno Yoo, Seung Ki Sul, Hyun-Sam Jung
  • Patent number: 11387413
    Abstract: The present invention relates to a polymer, an organic solar cell comprising the polymer, and a perovskite solar cell comprising the polymer. The polymer according to the present invention has excellent absorption ability for visible light and an energy level suitable for the use as an electron donor compound in a photo-active layer of the organic solar cell, thereby increasing the light conversion efficiency of the organic solar cell. In addition, the polymer according to the present invention has high hole mobility, and is used as a compound for a hole transport layer, and thus can improve efficiency and service life of the perovskite solar cell without an additive.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: July 12, 2022
    Assignees: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, GLOBAL FRONTIER CENTER FOR MULTISCALE ENERGY SYSTEMS
    Inventors: Soo Young Park, Won Sik Yoon, Dong Won Kim, Jun Mo Park
  • Publication number: 20220216368
    Abstract: Provided are a semiconductor structure and a method of manufacturing the same. The semiconductor structure includes a substrate, a membrane bridge that defines, with the substrate, a plurality of cavities, and a nitride semiconductor layer arranged on the membrane bridge. The membrane bridge and the substrate have the same crystal structure. The membrane bridge has an upper surface with a constant height with respect to a surface of the substrate.
    Type: Application
    Filed: November 16, 2021
    Publication date: July 7, 2022
    Applicants: SAMSUNG ELECTRONICS CO., LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Kyungwook HWANG, Ho Won JANG, Junsik HWANG, Jehong OH, Jungel RYU, Seungmin LEE
  • Patent number: 11377716
    Abstract: Provided is a cermet having improved toughness, the cermet including particles each of which has a complete solid-solution carbide of two or more metals selected, including titanium, from among Group IVa, Va, and VIa metals in the periodic table and has a core/rim structure composed of a core region and a rim region, and a binder composed of a metal, wherein the composition of the Group VIa metal in the core region is lower than the composition in the rim region, and the lattice constant in the rim region is larger than that in the core region.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: July 5, 2022
    Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Shinhoo Kang, Heung Nam Han, Choongkwon Park, Nojun Kwak
  • Patent number: 11376310
    Abstract: Provided are compositions including a CPNE4 protein or a polynucleotide encoding thereof, a pharmaceutical composition, a quasi-drug composition, a dietary supplement, and a health functional food composition. A method for preventing or treating dentin-dental disease or periodontal disease and a method and a method for promoting regeneration of hard tissue including dentin, bone and cementum, and/or pulp tissue are disclosed.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: July 5, 2022
    Assignees: HYSENSBIO, SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Joo Hwang Park, Ji Hyun Lee, Joo Cheol Park, Dong Seol Lee