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181.发明公开公开(公告)号：US20230314384A1
公开(公告)日：2023-10-05
申请号：US18190735
申请日：2023-03-27
Inventor： Chan Jung KIM
CPC classification number: G01N29/12 , G01N29/045 , G01N29/44 , G01N2291/0231
Abstract: A method for analyzing change in a mode of a unidirectional composite material includes applying a physical force of a predetermined pattern onto a unidirectional composite material specimen; sensing a vibration signal generated by the physical force at at least one sensed position thereof; performing modal analysis of a frequency response at a corresponding measurement location, based on the physical force applied to the specimen and the vibration signal measured at the sensed position of the specimen, and calculating at least one mode shape vector of the specimen based on the modal analysis result; compensating the calculated mode shape vector based on a distance between a normal line passing through a center of the specimen and the sensed position, thereby calculating a modified mode shape vector; and calculating a first modal assurance criterion (MAC) of the specimen based on the modified mode shape vector.
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公开(公告)号：US20230236323A1
公开(公告)日：2023-07-27
申请号：US18085147
申请日：2022-12-20
Inventor： Kyungchang LEE , Jaeheon JANG , Jungho KANG , Hyeongjun KIM , Hyunhee KIM
IPC: G01S17/931 , G01S17/89 , G06T7/73 , G01S7/481 , G01S7/497
CPC classification number: G01S17/931 , G01S17/89 , G06T7/73 , G01S7/4811 , G01S7/497 , G06T2207/10028
Abstract: There is provided a simultaneous localization and mapping (SLAM) system including a first LiDAR and a second LiDAR mounted on a vehicle bumper; a LiDAR data merge unit receiving data from the first LiDAR and the second LiDAR, aligning LiDAR times through time synchronization, and then converting the data into a point cloud type and merging the data; an electronic control unit (ECU) providing inertial data of the vehicle for correcting the data merged in the LiDAR data merge unit; and an SLAM unit correcting the data merged in the LiDAR data merge unit by using the inertial data of the vehicle received from the ECU to obtain LiDAR odometry for estimating a movement of the vehicle, generating a 3D map of a road on which the vehicle travels, and extracting a location and a traveling route of the vehicle inside a road.
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公开(公告)号：US11705224B2
公开(公告)日：2023-07-18
申请号：US16628976
申请日：2017-07-06
Inventor： Jay Liu , Myung Gi Yi , Petar Zuvela
Abstract: Disclosed is a target-based drug screening method using inverse quantitative structure-(drug)performance relationships (QSPR) analysis and molecular dynamics simulation. The method includes modeling a molecular structure of a test compound group against a target molecule, obtaining a quantitative structure-(drug)performance relationships (QSPR) of the test compound group, acquiring the optimal pharmacophore of a novel target-based drug through a numerical inversion of the QSPR, and selecting drug candidates having a molecular structure similar to the optimum pharmacophore from the test compound group.
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公开(公告)号：US11679453B2
公开(公告)日：2023-06-20
申请号：US16898937
申请日：2020-06-11
Inventor： Sang-Myung Cho , Dong-Soo Oh , Hyo-Sik Ham , Hyeon-Joo Ha , Hee-Seop Shin , Jae-Ho Jun , Jae-Gyu Byun , Jung-Hyun Park , Hyuk-Yong Kwon
CPC classification number: B23K35/0277 , B23K9/167 , B23K35/02
Abstract: The present invention provide a filler metal for TIG welding capable of stable welding, of which heat flux feeding area is wider than conventional wire filler metal and heat input per unit length is increased. The filler metal for TIG welding which is continuously supplied on a base metal to be melted by an arc after forming the arc between the base metal and an electrode over the base metal and supplying shield gas around the arc, wherein the cross-section of the filler metal has curved shape of which surface facing the electrode is concavely curved to the electrode.
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185.发明授权公开(公告)号：US11628496B2
公开(公告)日：2023-04-18
申请号：US16427622
申请日：2019-05-31
Inventor： Hansang Kwon
Abstract: Disclosed are a method of manufacturing an aluminum-based clad heat sink, and an aluminum-based clad heat sink manufactured by the method. The method includes ball-milling (i) aluminum or aluminum alloy powder and (ii) carbon nanotubes (CNT) to prepare a composite powder, preparing a multi-layered billet using the composite billet, and directly extruding the multi-layered billet using an extrusion die to produce a heat sink. The method has an advantage of producing a light high-strength high-conductivity aluminum-based clad heat sink having an competitive advantage in terms of price by using direct extrusion that is suitable for mass production due to its simplicity in process procedure and equipment required.
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Patent Agency Ranking
公开(公告)号：US11624687B2
公开(公告)日：2023-04-11
申请号：US17374141
申请日：2021-07-13
Inventor： Chan-Jung Kim
Abstract: This application relates to an apparatus and method for detecting a microcrack using orthogonality analysis of a mode shape vector and a principal plane in a resonance point. The apparatus may include a measurement unit comprising multiple sensors and configured to measure whether a crack exists at a measurement target, and an analysis unit configured to determine whether a crack exists, on the basis of measurement values of the respective sensors. The measurement unit includes a fixing jig configured to fix the measurement target, an excitation means configured to apply a predetermined impact to the measurement target, and multiple acceleration sensors attached at predetermined locations on the measurement target. The analysis unit may further calculate frequency responses of the measurement target to the impact applied by the excitation means, and determine whether a crack exists by analyzing the number of resonance points and independence of the resonance points.
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187.发明授权公开(公告)号：US11590185B2
公开(公告)日：2023-02-28
申请号：US17036456
申请日：2020-09-29
Inventor： Hyeung-Rak Kim , Su-Jin Lim , Mi-Sung Kwon , Min-Sup Lee
Abstract: The present invention relates to an antioxidant composition and, more specifically, to an antioxidant composition including a Sargassum serratifolium extract or a fraction thereof as an active ingredient, in which the antioxidant composition is a useful material (substance) that can be added to medicines, cosmetics, foods, animal feeds, and the like. The present invention also relates to a pharmaceutical composition for preventing or treating eye diseases, a food composition for alleviating eye diseases, and a health functional food, each of which includes a Sargassum serratifolium extract or a compound separated therefrom as an active ingredient.
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188.发明授权公开(公告)号：US11583921B2
公开(公告)日：2023-02-21
申请号：US16427582
申请日：2019-05-31
Inventor： Hansang Kwon
Abstract: Disclosed are a method of manufacturing an aluminum alloy clad section, and an aluminum alloy clad section manufactured by the method. The method includes preparing a composite powder by ball-milling aluminum powder and carbon nanotubes, preparing a billet from the composite powder, and subjecting the billet to direct extrusion using an extrusion die. The method is simple in procedure and uses simple equipment because it is based on direct extrusion which is suitable for mass production. Thus, the method is capable of producing a lightweight high-strength functional aluminum alloy clad section having a competitive advantage in terms of price over conventional aluminum alloy clad sections.
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公开(公告)号：US20220397500A1
公开(公告)日：2022-12-15
申请号：US17374141
申请日：2021-07-13
Inventor： Chan-Jung Kim
Abstract: This application relates to an apparatus and method for detecting a microcrack using orthogonality analysis of a mode shape vector and a principal plane in a resonance point. The apparatus may include a measurement unit comprising multiple sensors and configured to measure whether a crack exists at a measurement target, and an analysis unit configured to determine whether a crack exists, on the basis of measurement values of the respective sensors. The measurement unit includes a fixing jig configured to fix the measurement target, an excitation means configured to apply a predetermined impact to the measurement target, and multiple acceleration sensors attached at predetermined locations on the measurement target. The analysis unit may further calculate frequency responses of the measurement target to the impact applied by the excitation means, and determine whether a crack exists by analyzing the number of resonance points and independence of the resonance points.
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公开(公告)号：US20220359256A1
公开(公告)日：2022-11-10
申请号：US17732968
申请日：2022-04-29
Inventor： Hansang Kwon
Abstract: This application relates to a method of manufacturing an electrostatic chuck having good characteristics in heat dissipation, thermal shock resistance, and lightness. In one aspect, the method includes preparing a composite powder by ball-milling (i) aluminum or aluminum alloy powder and (ii) carbon-based nanomaterial powder. The method may also include preparing an electrode layer by sintering the composite powder through spark plasma sintering (SPS), and forming a dielectric layer on the electrode layer.
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