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公开(公告)号：US20250084608A1
公开(公告)日：2025-03-13
申请号：US18576987
申请日：2022-05-13
Applicant: Korea University Research and Business Foundation , DL CONSTRUCTION CO. , SEOYOUNG ENGINEERING CO., LTD. , BACKYOUNG G&C CO., LTD.
Inventor： Jong-Sub LEE , Jung-Doung YU , Seok-Gyu JEONG , Dong-Soo LEE
Abstract: A device for evaluating integrity of an underground structure by using electromagnetic waves includes a plurality of main reinforcing bars arranged in a vertical direction in an underground structure, a plurality of measurement cables extending vertically to be adjacent to the main reinforcing bars, respectively, at least one impedance change unit which is provided on each of the measurement cables, is electrically connected to the measurement cable, and has a characteristic impedance different from a characteristic impedance of the measurement cable, and an electromagnetic wave measurement unit for detecting a change point of a characteristic impedance as a defect point of the underground structure by providing an electromagnetic wave by using, as a signal transmission line, one of the plurality of measurement cables and one of the plurality of main reinforcing bars, or one pair of measurement cables selected from the plurality of measurement cables.
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公开(公告)号：US20250084516A1
公开(公告)日：2025-03-13
申请号：US18958505
申请日：2024-11-25
Applicant: Hyundai Steel Company , Korea University Research and Business Foundation , Korea Institute of Science and Technology
Inventor： Jun Ho Chung , Tae Hyung Kim
IPC: C22C38/32 , C21D8/02 , C21D8/06 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/20 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/40
Abstract: Provided is a steel reinforcement including an amount of 0.07 to 0.43 wt % of carbon (C), an amount of 0.5 to 2.0 wt % of manganese (Mn), an amount of 0.05 to 0.5 wt % of silicon (Si), an amount greater than 0 and less than or equal to 0.5 wt % of chromium (Cr), an amount greater than 0 and less than or equal to 4.5 wt % of copper (Cu), an amount greater than 0 and less than or equal to 0.003 wt % of boron (B), an amount greater than 0 and less than or equal to 0.25 wt % of vanadium (V), an amount greater than 0 and less than or equal to 0.012 wt % of nitrogen (N), an amount greater than 0 and less than or equal to 0.03 wt % of phosphorus (P), an amount greater than 0 and less than or equal to 0.03 wt % of sulfur(S), an amount of 0.01 to 0.5 wt % of the sum of one or more of nickel (Ni), niobium (Nb) and titanium (Ti), the balance of iron (Fe), and other inevitable impurities. A final microstructure includes ferrite, bainite, pearlite, retained austenite, and precipitates comprising copper.
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公开(公告)号：US20250081854A1
公开(公告)日：2025-03-06
申请号：US18807701
申请日：2024-08-16
Inventor： Sungwook KO , SeungRyull PARK , Sahn NAHM , Jungsoo KIM , Geun-Soo LEE , Eunji KIM
IPC: H10N30/853 , C04B35/468 , C04B35/64 , H10N30/092 , H10N30/097
Abstract: A piezoelectric material composition may be represented by Equation 1. A piezoelectric device may include a piezoelectric device layer including the piezoelectric material composition represented by Equation 1, a first electrode disposed at a first surface of the piezoelectric device layer, and a second electrode disposed at a second surface different from the first surface of the piezoelectric device layer. a PbZrO 3 - b PbTiO 3 - ( 1 - a - b ) Pb ( Ni c Nb 1 - c ) O 3 + x mol % A + y vol % BaTiO 3 [ Equation 1 ] where A is Fe2O3, Co2O3, Mn2O3, ZnO, GeO2, CuO, or NiO, and 0.15≤a≤0.24, 0.29≤b≤0.38, 0.30≤c≤0.35, 0.00≤x≤3.00, and 0.00≤y≤7.00.
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公开(公告)号：US20250078918A1
公开(公告)日：2025-03-06
申请号：US18819404
申请日：2024-08-29
Inventor： Jongsun PARK , Kyeong-ho LEE , Junwoo PARK
IPC: G11C11/419 , G06F7/544 , G11C11/412
Abstract: Disclosed is a computing-in-memory device, which includes a memory cell array including a plurality of local arrays that generates a first output signal and a second output signal by performing a multiply-accumulate (MAC) operation on an input signal applied through a plurality of operation word lines and a stored weight, a reference voltage generator that generates a reference voltage by sharing charges of the first output signal with adjacent global bit lines, and an analog-to-digital converter that compares the reference voltage with the second output signal and converts the second output signal into a digital signal based on a result of the comparison.
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公开(公告)号：US20250064719A1
公开(公告)日：2025-02-27
申请号：US18939509
申请日：2024-11-06
Inventor： Sung Hoi HONG , In Sik HWANG
IPC: A61K8/98 , A61K8/02 , A61K8/04 , A61K8/64 , A61K8/66 , A61Q1/12 , A61Q19/00 , A61Q19/08 , A61Q19/10
Abstract: The present invention relates to a method of preparing a culture broth of neural stem cells, having excellent abilities of reducing skin wrinkles or increasing skin elasticity, the culture broth comprising high concentrations of TIMP-1 and TIMP-2 capable of inhibiting the expression and activity of matrix metalloproteinases (MMPs) involved in collagen decomposition in the dermis. The culture broth of neural stem cells according to the present invention, which comprises, as active ingredients, high concentrations of TIMP-1 and TIMP-2 and low concentrations of various MMPs, restores the synthesis of collagen and elastin by suppressing the expression and activity of MMPs inhibiting collagen formation, and thus is useful as a composition for reducing skin wrinkles or increasing skin elasticity.
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Patent Agency Ranking
公开(公告)号：US12225327B2
公开(公告)日：2025-02-11
申请号：US18139683
申请日：2023-04-26
Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION , AJOU UNIVERSITY INDUSTRY—ACADEMIC COOPERATION FOUNDATION
Inventor： Joongheon Kim , Soyi Jung , Jae-Hyun Kim , Won Joon Yun , SooHyun Park
IPC: H04N7/18 , B64U10/00 , B64U101/20 , B64U101/31 , H04N23/661
Abstract: Provided is a surveillance system employing a plurality of unmanned aerial vehicles (UAVs), the surveillance system showing improved surveillance performance while optimizing common energy consumption for computing of all the UAVs and also providing a stable visual monitoring service using autonomous mobility of the plurality of UAVs regardless of movement of an object to be monitored and action uncertainty of an adjacent UAV.
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27.发明授权公开(公告)号：US12223447B2
公开(公告)日：2025-02-11
申请号：US17690231
申请日：2022-03-09
Applicant: Korea University Research and Business Foundation , AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
Inventor： Joongheon Kim , Won Joon Yun , Jae-Hyun Kim , Soyi Jung
IPC: G06Q10/0631 , B64U101/61 , G01C21/20 , G05D1/00
Abstract: Provided are a drone taxi system based on multi-agent reinforcement learning and a drone taxi operation method using the same. The drone taxi system includes a plurality of drone taxies configured to receive call information including departure point information and destination information from passenger terminals present within a certain range and a control server configured to receive call information of passengers from each drone taxi, select a candidate passenger depending on whether a passenger is present, generate travel route information of each drone taxi from drone state information of the plurality of drone taxies through multi-agent reinforcement learning, and transmit the travel route information to the drone taxi.
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公开(公告)号：US20250039862A1
公开(公告)日：2025-01-30
申请号：US18912933
申请日：2024-10-11
Inventor： Hyungtae KWON , Inkyu LEE , Hongju LEE , Sangeon KIM , Seunghyun MIN
IPC: H04W72/121 , H04W72/542
Abstract: A resource block scheduling method and an electronic device performing the method are disclosed. An electronic device according to various embodiments may comprise: at least one processor, comprising processing circuitry, and a memory electrically connected to at least one processor and storing instructions executable by the processor, wherein at least one processor, individually and/or collectively, is configured to execute the instructions and to:
based on channel quality information indexes (CQIs) relating to a plurality of terminals, acquire achievable rates based on resource blocks being allocated to the plurality of terminals; and input the achievable rates to a trained neural network model to output a schedule for allocation of the resource blocks to the plurality of terminals, and the neural network model is configured to be trained to collect the training CQIs relating to the plurality of terminals, acquire, based on the training CQIs, training achievable rates based on the resource blocks being allocated to the plurality of terminals, and output the schedule, in which the sum of the rates for the plurality of terminals is maximized and fairness indexes for the plurality of terminals satisfy a configured fairness condition, using the input training achievable rates.-
公开(公告)号：US12212864B2
公开(公告)日：2025-01-28
申请号：US18602787
申请日：2024-03-12
Inventor： Suyeon Lee , Q-Han Park , Unjeong Kim , Hyunjun Ma
Abstract: Provided are a method and a device, for processing spectrum data of an image sensor. The method includes obtaining spectrum response signals corresponding to channels of spectrum data of light, the spectrum data being obtained from an object by an image sensor; determining a set of bases corresponding to the obtained spectrum response signals; performing, based on the determined set of bases, a change of basis on at least one basis included in the determined set of bases; and generating, by using a pseudo inverse, reconstructed spectrum data from the spectrum response signals on which the change of basis has been performed.
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公开(公告)号：US20250030030A1
公开(公告)日：2025-01-23
申请号：US18714739
申请日：2022-05-30
Inventor： Chang Soo HAN , Jung Soo KIM
Abstract: Disclosed is an electricity generation device. The present invention provides an electricity generation device, including: a first electrolyte, selectively permeable membrane, and second electrolyte in a chamber thereof, wherein each of the first electrolyte and the second electrolyte includes at least two types of ions, and at least three types of ions are included in the first electrolyte and the second electrolyte, the selectively permeable membrane selectively permeates at least one type of ions among the at least three types of ions to cause Donnan effect between the first electrolyte and the second electrolyte.
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