公开(公告)号：US11649517B2

公开(公告)日：2023-05-16

申请号：US16083713

申请日：2017-09-20

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Changheui Jang ,  Hyunmyung Kim ,  Gokul Obulan Subramanian ,  Jin Woo Heo ,  Ho Jung Lee ,  Sunghoon Hong ,  Chaewon Kim

IPC: C21D9/46 ,  C21D6/00 ,  C21D8/02 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/48 ,  C22C38/50 ,  C22C38/18

CPC classification number: C21D9/46 ,  C21D6/004 ,  C21D8/0205 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0263 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/18 ,  C22C38/48 ,  C22C38/50 ,  C21D2211/001 ,  C21D2211/004 ,  C21D2211/005

Abstract: The present disclosure relates to a high-strength Fe—Cr—Al—Ni multiplex stainless steel and a manufacturing method therefor. The multiplex stainless steel comprises 35 to 67 wt % of iron (Fe), 13 to 30 wt % of chrome (Cr), 15 to 30 wt % of nickel (Ni), and 5 to 15 wt % of aluminum (Al) and has a multiplex structure in which an austenite phase accounting for high ductility, a ferrite phase accounting for high strength, and an NiAl(B2) phase providing both strength and high-temperature steam oxidation resistance, exist in combination. The multiplex stainless steel can secure necessary fabricability and mechanical strength even if for/in a thin state, can maintain integrity as a structural member in a normal operation condition of a light-water reactor thanks to the formation of a chrome oxide layer thereon, and can form a stable oxide layer including alumina under a high-temperature steam environment, which is plausible in a high-temperature nuclear accident, thereby providing exceptionally improved resistance to serious accidents.

公开(公告)号：US20230142820A1

公开(公告)日：2023-05-11

申请号：US17969006

申请日：2022-10-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yang-Kyu CHOI ,  Joon-Kyu HAN

IPC: G06N3/063

CPC classification number: G06N3/063

Abstract: According to an embodiment of the present disclosure, a neuron circuit may be provided. The neuron circuit includes a biristor that includes a collector electrode receiving a constant input current from a first synapse circuit and an emitter electrode connected with a ground and outputs a collector signal through the collector electrode, and a voltage divider that is enabled by the collector signal, performs voltage division on an operating voltage by using values of resistances included therein, and outputs an output voltage corresponding to a result of the voltage division to a second synapse circuit.

公开(公告)号：US11645508B2

公开(公告)日：2023-05-09

申请号：US16002614

申请日：2018-06-07

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Sungju Hwang ,  Haebum Lee ,  Donghyun Na ,  Eunho Yang

IPC: G06N3/08 ,  G06F17/16 ,  G06N3/04 ,  G06N3/045

CPC classification number: G06N3/08 ,  G06F17/16 ,  G06N3/04 ,  G06N3/045

Abstract: A method for generating a trained model is provided. The method for generating a trained model includes: receiving a learning data; generating an asymmetric multi-task feature network including a parameter matrix of the trained model which permits an asymmetric knowledge transfer between tasks and a feedback matrix for a feedback connection from the tasks to features; computing a parameter matrix of the asymmetric multi-task feature network using the input learning data to minimize a predetermined objective function; and generating an asymmetric multi-task feature trained model using the computed parameter matrix as the parameter of the generated asymmetric multi-task feature network.

公开(公告)号：US20230138222A1

公开(公告)日：2023-05-04

申请号：US17438485

申请日：2020-12-30

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： WooChul JUNG ,  Dae-Kwang LIM ,  Jinwook KIM

IPC: H01M8/083 ,  H01M8/0217 ,  H01M8/1246

Abstract: A solid oxide fuel cell according to this invention can provide a solid oxide fuel cell with improved performance, by loading an alkali-based promoter in an anode.

公开(公告)号：US20230123853A1

公开(公告)日：2023-04-20

申请号：US17859423

申请日：2022-07-07

Applicant: HYUNDAI MOTOR COMPANY ,  KIA CORPORATION ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Yong Joo Cho ,  Jung Ryul Lee ,  Yong Ho Kim

IPC: G01N29/24 ,  G01N29/22

Abstract: An inspection apparatus inspects a pressure vessel using laser ultrasound. The apparatus includes an oscillation device that oscillates an excitation laser for exciting the pressure vessel and a conduit to guide the excitation laser oscillated from the oscillation device to inside the pressure vessel. The conduit is inserted into the pressure vessel with one conduit end located inside the pressure vessel and an opposite end located outside the pressure vessel. The apparatus includes a reflector at one conduit end inside the pressure vessel to reflect the excitation laser guided by the conduit and a detector that detects ultrasonic waves generated in the pressure vessel by the excitation laser reflected by the reflector by oscillating a receiving laser from outside of the pressure vessel. At least the conduit, reflector, or detector moves to correct an optical path of the excitation laser or the receiving laser.

公开(公告)号：US11631865B2

公开(公告)日：2023-04-18

申请号：US16702243

申请日：2019-12-03

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

Inventor： Jee Youn Hwang ,  Eun Jik Lee ,  Ji Hoon Jang ,  Song I Oh ,  Jin Woo Lee ,  Sol Youk ,  Dong Yoon Woo

IPC: B01J21/06 ,  B01J23/30 ,  B01J23/42 ,  B01J27/24 ,  B01J37/08 ,  H01M4/88 ,  H01M4/92 ,  C01G23/00 ,  C01G33/00 ,  C01G41/00 ,  B01J23/656

Abstract: The present invention relates to a transition metal nitride support, a method of manufacturing the same, a metal catalyst and a platinum-alloy catalyst including the transition metal nitride support, and manufacturing methods thereof. The manufactured transition metal support prevents corrosion of the support and aggregation of the platinum catalyst, thereby exhibiting high oxygen reduction catalytic activity. Also, strong metal-support interaction (SMSI) can be stabilized, thus improving the durability of the catalyst. The transition metal support includes large pores uniformly distributed therein, thereby increasing the amount of the catalyst supported and minimizing mass-transfer resistance in a membrane- electrode assembly, increasing the performance of a polymer electrolyte membrane fuel cell. The metal catalyst includes platinum particles loaded on the transition metal nitride support, thus exhibiting superior durability and activity. The manufactured platinum-alloy catalyst decreases the use of expensive platinum, thus generating economic benefits and improving the inherent oxygen reduction performance.

公开(公告)号：US11630521B2

公开(公告)日：2023-04-18

申请号：US17540226

申请日：2021-12-01

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Geehyuk Lee ,  Daehwa Kim ,  Keunwoo Park

IPC: G06F3/01 ,  G01S5/14

Abstract: Various embodiments relate to an electronic device for supporting a finger pinch interaction using a return loss of a radio frequency signal and an operating method thereof. The electronic device is configured to measure a return loss of an antenna while radiating a radio frequency signal through the antenna and to detect whether a thumb and a finger touch each other within a predetermined distance from the antenna based on the measured return loss. Accordingly, there can be provided an interaction for the touch between the thumb and the finger.

公开(公告)号：US20230097529A1

公开(公告)日：2023-03-30

申请号：US17736312

申请日：2022-05-04

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

Inventor： Minsoo Rhu ,  Yujeong Choi

IPC: G06F15/76 ,  G06N3/063

Abstract: An electronic device to co-locating models and a method of operating the electronic device is provided. The electronic device includes one or more of processors configured to analyze computational characteristics in response to a plurality of models being located to an accelerator, determine an affinity representing a utilization of the accelerator in response to two models among the plurality of models being co-located based on the computational characteristics of the plurality of models, and co-locate the two models among the plurality of models to the accelerator based on the affinity.

公开(公告)号：US20230096447A1

公开(公告)日：2023-03-30

申请号：US17677078

申请日：2022-02-22

Applicant: HYUNDAI MOTOR COMPANY ,  KIA CORPORATION ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Ji-Sung Lee ,  Joon-Hyun Kwon ,  Su-Jung Noh ,  Han-Saem Lee ,  Byong-Guk Park ,  Jaimin Kang ,  Jeong-Mok Kim ,  Soogil Lee

IPC: H01L43/08 ,  H01L43/10 ,  H01L43/12 ,  G11C11/16 ,  H01F10/32 ,  H01L27/22

Abstract: Disclosed herein is a spin-orbit torque device including a lower ferromagnetic layer, a non-magnetic layer bonded to the lower ferromagnetic layer, and an upper ferromagnetic layer bonded to the non-magnetic layer, wherein a magnetization orientation of the lower ferromagnetic layer is randomly distributed. According to the present disclosure, it is possible to provide a magnetic memory device which cannot be physically duplicated and has reconfigurability using a spin-orbit torque.

公开(公告)号：US11614377B2

公开(公告)日：2023-03-28

申请号：US17109731

申请日：2020-12-02

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Steve Park ,  Han Byul Choi ,  Jin Won Oh ,  Jun Chang Yang

IPC: G01L19/14 ,  G01L9/00

Abstract: The present disclosure provides a transparent and highly sensitive pressure sensor with improved linearity and pressure sensitivity including: a first substrate on which a micropattern having pyramidal structures is formed; a first electrode layer coated on the micropattern of the first substrate; a second substrate stacked on the first electrode layer; and a second electrode layer stacked on the second substrate, wherein the first substrate and the second substrate show a difference in light refractive index of 10% or less in the visible light region.