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公开(公告)号：US20250094851A1
公开(公告)日：2025-03-20
申请号：US18542385
申请日：2023-12-15
Inventor： Seok Hyeong KANG , Sung Hye PARK , Jae Yoon SIM , Do Hun KIM
Abstract: Disclosed is a multi-constraint qubit allocation method and a quantum apparatus using the same. The method comprises generating an interaction graph representing a quantum circuit on the basis of the number of two-qubit gates, determining edge weights between connected nodes in the interaction graph by introducing a fitting coefficient for a decay effect, searching for an isomorphic part, layout graph, between target hardware and the interaction graph by graph matching, and performing frequency matching for a layout graph by searching for frequency allocated to each location of qubits by limiting unidirectional movement on each of an x-axis and a y-axis of a hardware plane of the target hardware to a range from −1 to +1.
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公开(公告)号：US20250077854A1
公开(公告)日：2025-03-06
申请号：US18652689
申请日：2024-05-01
Inventor： Seyoung KIM , Doyoon KIM
Abstract: A digital-analog memory integrated deep learning accelerator system may include: a main digital device including a first array, the first array having digital circuits and configured to store weights for on-chip learning; an analog device including a second array, the second array having analog circuits and configured to update and store gradient information about the weights during the on-chip learning; and a sub-digital device including a third array, the third array having digital circuits and configured to store values read from the second array and to transfer a value exceeding a threshold to the first array. The digital-analog memory integrated deep learning accelerator system may perform a matrix-level learning process through an array set including the first array, the second array, and the third array. An artificial neural network learning method for a digital-analog memory integrated deep learning accelerator system is also disclosed.
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公开(公告)号：US20250074426A1
公开(公告)日：2025-03-06
申请号：US18535190
申请日：2023-12-11
Applicant: HYUNDAI MOTOR COMPANY , KIA CORPORATION , POSTECH Research and Business Development Foundation
Inventor： Jinho Bae , Chang Seop An , Heecheon You , MinJae Kim , Young Jae Jung
IPC: B60W30/18
Abstract: A steering and driving interface device mounted in a vehicle includes a rail part fixed in the vehicle and elongated in a first direction, and a driving part coupled to the rail part. The driving part is configured to move in the first direction and control an acceleration and deceleration of the vehicle. The steering and driving interface device also includes: a steering part disposed in the rail part and configured to rotate about an axis parallel to the first direction; and a manipulation lever coupled to the steering part and the driving part and extending upward. The manipulation lever is configured to control the acceleration and deceleration of the vehicle by operating the driving part or control a rotation of the vehicle by operating the steering part.
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公开(公告)号：US20250066936A1
公开(公告)日：2025-02-27
申请号：US18939715
申请日：2024-11-07
Inventor： Sangcheol PAIK , Kijung Yong , Hyogyun Roh
IPC: C25B11/075 , C23C18/12 , C25B1/04 , C25B11/061
Abstract: The present disclosure relates to a transition metal-doped nickel phosphide nanostructure, a method for preparing the same, and a catalyst for electrochemical water decomposition including the transition metal-doped nickel phosphide nanostructure. More specifically, a transition metal-doped nickel phosphide nanostructure can be prepared by converting a zinc oxide nanostructure grown on a substrate vertically by hydrothermal synthesis to a transition metal-doped nickel oxide nanostructure by cation exchange and then phosphorizing the nickel oxide. The transition metal-doped nickel phosphide nanostructure of the present disclosure is advantageous in that it has superior catalytic activity and conductivity due to large surface area. In addition, when used as a catalyst for water decomposition under an alkaline condition, it has a low overvoltage and can have excellent catalytic activity for hydrogen evolution reaction or oxygen evolution reaction.
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公开(公告)号：US20250047007A1
公开(公告)日：2025-02-06
申请号：US18718514
申请日：2022-12-08
Inventor： Suho Chang , Hyeng-cheul Choi , Won-bin Hong , Byounggwan Kang , Choonkon Kim , Youngno Youn
Abstract: One or more devices for absorbing electromagnetic radiation are disclosed. The one or more devices include a substrate comprising a glass material. The substrate also includes a first pattern of a metal layer formed on a first surface of the substrate and a second pattern of a metal layer formed on a second surface of the substrate. The first pattern and the second pattern are different and features of the first pattern and the second pattern can be tunable to maximize optical transparency of the one or more devices and to maximize absorption of electromagnetic radiation having a target range of frequencies, such as one or more ranges of frequencies within the microwave portion of the electromagnetic spectrum.
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Patent Agency Ranking
106.发明申请公开(公告)号：US20250023723A1
公开(公告)日：2025-01-16
申请号：US18620977
申请日：2024-03-28
Inventor： Chanik PARK , Moon Hyeon CHUNG , Dong Hyeon RYU
IPC: H04L9/08
Abstract: A blockchain-based trusted setup method for zero-knowledge proof (ZKP), performed by a specific node of a blockchain network, may comprise: transmitting a first hash value of a first common reference string (CRS) to a first node; receiving a second hash value of a second CRS from the first node; transmitting the second hash value to a second node; and receiving a third hash value of a third CRS from the second node, wherein the second CRS is generated by the first node encrypting or hiding the first CRS acquired from a public storage through a CRS update module using a secret key of the first node, and the third CRS is generated by the second node using the second CRS acquired from the public storage and a secret key of the second node.
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公开(公告)号：US20250004173A1
公开(公告)日：2025-01-02
申请号：US18760345
申请日：2024-07-01
Inventor： JAEHO YOU , Junsuk Rho , BEOMSHIK KIM , YOUNGCHAN KIM , Sunae So , Dong Kyo Oh , Seokho Lee , Chihun Lee
IPC: G02B1/00
Abstract: A method of manufacturing a meta-optical element includes propagating light with random phase distribution toward a light collecting surface, obtaining a simulation intensity of the light at the light collecting surface through simulation, generating an error function based on an error data which is a difference between the simulation intensity of the light and an ideal intensity of the light, obtaining an optimal phase distribution of the light which outputs a minimum function value of the error function by applying a gradient descent, and forming a meta-optical element that implements the optimal phase distribution.
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108.发明申请公开(公告)号：US20240417273A1
公开(公告)日：2024-12-19
申请号：US18679584
申请日：2024-05-31
Inventor： Daesu LEE , Sanghyeon KIM
Abstract: A perovskite oxide thin film comprising a compound represented by Chemical Formula 1, and has a layered perovskite structure, wherein a ratio of A′ atoms to all A-sites in one A-site (A+A′) atomic layer is different from that of three or more other A-site atomic layers in a thickness direction.
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公开(公告)号：US20240410033A1
公开(公告)日：2024-12-12
申请号：US18665807
申请日：2024-05-16
Inventor： Yong Tae KIM , Young Jin LIM
Abstract: A method for recovering valuable metals from waste batteries according to one embodiment of the present invention comprises: an impurity removal process for removing impurities comprising Cu from a waste battery raw material and discharging an aqueous phase comprising Ni and Co; and a Co extraction process to extract Co from the aqueous phase comprising Ni and Co and discharge an aqueous phase comprising Ni, wherein the impurity removal process may be carried out by mixing a dialkylphosphoric acid-based solvent extractant with another solvent extractant having a synergistic effect to increase the separation factor of Co and Cu.
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110.发明申请公开(公告)号：US20240408547A1
公开(公告)日：2024-12-12
申请号：US18737498
申请日：2024-06-07
Inventor： Dong-Pyo KIM , Jeong-Un Joo , Gi-Su Na
Abstract: Provided is a microfluidic dialysis module including an upper plate having an upper flow path through which a first fluid flows therein formed on one surface thereof, and an upper inlet through which the first fluid flows into the upper flow path and an upper outlet through which the first fluid flows out of the upper flow path; a lower plate having a lower flow path through which a second fluid flows therein, and having a plurality of lower inlets through which the second fluid flows into the lower flow path and a plurality of lower outlet through which the second fluid flows out of the lower flow path; a membrane disposed between the one surface of the upper plate and the one surface of the lower plate and formed in a porous membrane structure; and a fixing member coupling the upper plate and the lower plate.
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