公开(公告)号：US20220181642A1

公开(公告)日：2022-06-09

申请号：US17398564

申请日：2021-08-10

Applicant: Hyundai Motor Company ,  Kia Corporation ,  Korea Advanced Institute of Science and Technology

Inventor： Dae Yong Son ,  Jung Han Yu ,  Byoung Su Kim ,  Hyun Joo Lee ,  Hee Eun Kim

IPC: H01M4/90 ,  H01M4/88

Abstract: Disclosed are a catalyst complex which may suppress cell voltage reversal in a fuel cell and a method for manufacturing the same. The catalyst complex includes a support, a first catalytic active material supported on the support and comprising a platinum component including one or more selected from the group consisting of platinum and a platinum alloy, and a second catalytic active material supported on the support and comprising one or more selected from a noble metal other than platinum and an oxide thereof, and the support includes functional groups including oxygen.

公开(公告)号：US20220181634A1

公开(公告)日：2022-06-09

申请号：US17541227

申请日：2021-12-02

Applicant: Korea Advanced Institute of Science and Technology ,  Korea University Research and Business Foundation ,  Daegu Gyeongbuk Institute of Science and Technology

Inventor： Seokwoo JEON ,  Gayea HYUN ,  Yong-Mook KANG ,  Mihui PARK ,  Seonyong JO ,  Yong Min LEE ,  Joonam PARK ,  Seungwon JUNG

IPC: H01M4/62 ,  H01M10/052 ,  H01M4/66 ,  H01M4/04

Abstract: According to an embodiment, a porous electrode comprises a three-dimensional nanostructured porous catalyst film including a catalyst material promoting an oxygen reduction and evolution reactions, having an aligned pore structure, and having an upper surface and a lower surface opening the pore structure and a porous current collecting layer interfacially adhered to the three-dimensional nanostructured porous catalyst film by a binder polymer.

公开(公告)号：US20220180977A1

公开(公告)日：2022-06-09

申请号：US17522424

申请日：2021-11-09

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Yong-Hoon Kim

IPC: G16C10/00

Abstract: The present concept relates to a first principle-derived effective mass approximation simulation technology for accurate and efficient computational simulation of an optical property of a quantum nanostructure including creating an effective mass approximation (EMA) parameter through first principle density functional theory (DFT) calculation for a model nanostructure corresponding to a simulation target quantum nanostructure, performing EMA calculation using the EMA parameter created through the DFT calculation, and acquiring the optical property of the quantum nanostructure based on an electronic structure generated through the EMA calculation.

公开(公告)号：US20220167849A1

公开(公告)日：2022-06-02

申请号：US17602419

申请日：2020-04-03

Applicant: IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY) ,  CHUNG-ANG UNIVERSITY INDUSTRY-ACADEMY COOPERATION FOUNDATION ,  KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hong Ki YOO ,  Min Woo LEE ,  Jin Won KIM ,  Wang Yuhl OH ,  Kyeong Soon PARK

IPC: A61B5/00 ,  F21V8/00

Abstract: Disclosed are a catheter which can perform both multi diagnosis and treatment, and a catheter system comprising same. A multi diagnosis and treatment catheter comprises: a triple-clad fiber; and a lens connected to one end of the triple-clad fiber. The triple-clad fiber comprises: a core guiding a first diagnostic light; a first cladding surrounding the core and guiding a second diagnostic light; a second cladding surrounding the first cladding; a third cladding surrounding the second cladding and guiding a therapeutic light; and a coating layer surrounding the third cladding.

公开(公告)号：US20220164417A1

公开(公告)日：2022-05-26

申请号：US17361994

申请日：2021-06-29

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Sooel Son ,  Suyoung Lee

IPC: G06F21/14 ,  G06F21/16 ,  G06N3/08

Abstract: Disclosed is a method of evaluating robustness of artificial neural network watermarking against model stealing attacks. The method of evaluating robustness of artificial neural network watermarking may include the steps of: training an artificial neural network model using training data and additional information for watermarking; collecting new training data for training a copy model of a structure the same as that of the trained artificial neural network model; training the copy model of the same structure by inputting the collected new training data into the copy model; and evaluating robustness of watermarking for the trained artificial neural network model through a model stealing attack executed on the trained copy model.

公开(公告)号：US11329557B2

公开(公告)日：2022-05-10

申请号：US16553405

申请日：2019-08-28

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  Korea Advanced Institute of Science and Technology

Inventor： Seungchul Jung ,  Kye-Seok Yoon ,  Gyu-Hyeong Cho ,  Sang Joon Kim ,  Sang Jin Lim

IPC: H02M3/157 ,  H02M1/00

Abstract: A single-inductor multiple-output (SIMO) converter includes a converter configured to provide respective voltages of a plurality of channels with a single inductor and a control logic configured to control switches of the converter based on clocks corresponding to the plurality of channels, wherein the control logic is configured to compare an output voltage of a selected channel of the plurality of channels that corresponds to a control target to a reference voltage of the selected channel based on a clock of the selected channel and operate in one of a first mode that adaptively adjusts a number of times that a pulse triggering a power transfer to the channel is generated, and a second mode that blocks a generation of the pulse.

公开(公告)号：US11326222B2

公开(公告)日：2022-05-10

申请号：US16476597

申请日：2018-11-28

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Chang-Heui Jang ,  Ji Ho Shin ,  Byeong Seo Kong ,  Ho-Sub Kim ,  Hyeon Bae Lee

IPC: C21D9/46 ,  C21D6/00 ,  C21D6/02 ,  C21D8/02 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/48 ,  C22C38/50

Abstract: The austenitic stainless steel containing niobium according to an exemplary embodiment of the present invention includes: 16 to 26 wt. % of chromium (Cr), 8 to 22 wt. % of nickel (Ni), 0.02 to 0.1 wt. % of carbon (C), 0.2 to 1 wt. % of niobium (Nb), 0.015 to 0.025 wt. % of titanium (Ti), 0.004 to 0.01 wt. % of nitrogen (N), and 0.5 to 2 wt. % of manganese (Mn), wherein the austenitic stainless steel containing niobium has an austenitic matrix structure, a fine niobium carbide and a fine titanium nitride are precipitated in the austenitic matrix structure, and the fine niobium carbide is uniformly dispersed in the austenitic matrix structure.

公开(公告)号：US20220127662A1

公开(公告)日：2022-04-28

申请号：US17510690

申请日：2021-10-26

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Jae-Byum Chang ,  Jueun Sim

IPC: C12Q1/6806 ,  C12Q1/6869

Abstract: Provided are the nucleic acid-mediated pattern replication and a method of manufacturing a 2-D material using the same. A method of manufacturing a 2-D material according to an embodiment may include preparing a first material having a first nucleic acid patterned on a surface thereof, bonding a linker-nucleic acid to the first nucleic acid, bonding the first nucleic acid and a second nucleic acid attached to a surface of a second material through the linker-nucleic acid and replicating a pattern of the first material to the surface of the second material, separating the first material, and applying a third material on a pattern replicated to the surface of the second material.

公开(公告)号：US20220124673A1

公开(公告)日：2022-04-21

申请号：US17451123

申请日：2021-10-15

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Yongdae Kim ,  CheolJun Park ,  Hojoon Yang ,  Sangwook Bae ,  Mincheol Son ,  Jiho Lee ,  Hongil Kim

IPC: H04W68/02 ,  H04W56/00

Abstract: A fake base station (FBS) redirection attack method using unicast message injection in a long term evolution (LTE) wireless section and a system thereof are provided. The FBS redirection attack method includes synchronizing with a signal of a commercial base station connected with a target device being an attack target, transmitting an international mobile subscriber identity (IMSI) paging message to the target device using an IMSI of the target deice, and injecting a unicast message including a frequency of an FBS into the target device, before a base station re-access process is completed in the target device which decodes the IMSI paging message.

公开(公告)号：US20220121387A1

公开(公告)日：2022-04-21

申请号：US17076274

申请日：2020-10-21

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Jeongseok Ha ,  Seokju Han ,  Jieun Oh

IPC: G06F3/06

Abstract: Disclosed is a method for estimating a read reference voltage for a flash memory using a neural network and an apparatus therefor. According to an embodiment of the inventive concept, a method for reading a flash memory may include receiving predetermined variable values with respect to a flash memory, estimating a read reference voltage corresponding to the received variable values, using a neural network of a pre-trained learning model with respect to the variable values, and reading the flash memory, using the estimated read reference voltage. The method may further include updating the learning model of the neural network by reflecting a difference in characteristics between individual chips constituting the flash memory.