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公开(公告)号：US11771315B2
公开(公告)日：2023-10-03
申请号：US17481093
申请日：2021-09-21
Applicant: Pukyong National University Industry—University Cooperation Foundation , KOSIN UNIVERSITY INDUSTRY—ACADEMY COOPERATION
Inventor： Yeh-Chan Ahn , Daa Young Kwon , Yi Keun Kim , Chul Ho Oak , Hang Goo Yun , Sung Won Kim
Abstract: Disclosed is a mobile colposcopy device for early diagnosis of cervical cancer, which includes an insertion unit which is inserted into the vagina of a woman, has a penetrating hole formed in one end coming into contact with the uterus, and is provided with a capturing path communicating with the penetrating hole, a capturing unit which is provided in the insertion unit so as to capture the cervix through the capturing path, and a lighting unit which is provided on the capturing path of the insertion unit and irradiates a lighting to the cervix through the penetrating hole. According to the present disclosure, the mobile colposcopy device for early diagnosis of cervical cancer can be simply and easily used so as to perform cervical cancer screening using a mobile colposcopy without environmental constraints including hospitals and allows women to early diagnose cervical cancer.
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公开(公告)号：US11592473B2
公开(公告)日：2023-02-28
申请号：US16909167
申请日：2020-06-23
Inventor： Hansang Kwon
Abstract: This application relates to a method of preparing a composite material for a semiconductor test socket, and a composite material prepared through the method. In one embodiment, the method includes preparing a powder mixture including (i) a metal powder comprising aluminum or aluminum alloy particles and magnesium particles and (ii) a polymer powder. The method may also include sintering the powder mixture to produce the composite material using a spark plasma sintering (SPS) process. This application also relates to a method of manufacturing a semiconductor test socket, the method including forming an insulating portion of the semiconductor test socket with the composite material. This application further relates to a semiconductor test socket produced through the method.
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公开(公告)号：US11577313B2
公开(公告)日：2023-02-14
申请号：US16909539
申请日：2020-06-23
Inventor： Hansang Kwon
IPC: B22F3/105 , H01R13/629 , H01R31/08
Abstract: This application relates to a method of preparing a composite material for an electric wiring connector. In one embodiment, the method includes preparing a powder mixture including (i) a metal powder composed of aluminum or aluminum alloy particles and magnesium particles and (ii) a polymer powder. The method may also include sintering the powder mixture to produce a composite material for the electric wiring connector using a spark plasma sintering (SPS) process. This application also relates to a composite material for an electric wiring connector prepared through the method described above. This application further relates to a method of manufacturing an electric wiring connector, the method including forming a housing of the electric wiring connector with the composite material. This application further relates to an electric wiring connector manufactured by the method.
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公开(公告)号：US20230019810A1
公开(公告)日：2023-01-19
申请号：US17935517
申请日：2022-09-26
Inventor： Hansang Kwon
Abstract: A method of manufacturing an extruded material of carbon nanotube reinforced aluminum matrix composite having improved corrosion resistance, and the extruded material manufactured thereby are proposed. The method may include manufacturing an extruded material comprising an aluminum-carbon nanotube composite material and forming a hard oxide film on the surface of the extruded material by anodizing the extruded material in a mixed solution of sulfuric acid and oxalic acid. The method can form a hard oxide film with excellent corrosion resistance, abrasion resistance, and insulation properties on the surface of a composite material (an extruded material of carbon nanotube reinforced aluminum matrix composite material), which is known to be difficult to conduct hard anodizing due to the difference in corrosion characteristics between materials and, accordingly, the usability of the composite material can be significantly improved.
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公开(公告)号：US20220397558A1
公开(公告)日：2022-12-15
申请号：US17410173
申请日：2021-08-24
Inventor： Chan Jung KIM
Abstract: A method for analyzing dynamic mode change of an anisotropic material includes performing modal analysis of a first physical force applied to an isotropic material specimen and a first vibration signal collected from the isotropic material specimen, acquiring a first modal parameter of the isotropic material specimen, based on the modal analysis result, performing modal analysis of a second physical force applied to the anisotropic material specimen and a second vibration signal collected from the anisotropic material specimen, acquiring a second modal parameter of the anisotropic material specimen, based on the modal analysis result, acquiring a modal assurance criterion (MAC) for each mode of the anisotropic material specimen, based on the first and second modal parameters, and acquiring each similar mode of the anisotropic material specimen to each mode of the isotropic material specimen.
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Patent Agency Ranking
公开(公告)号：US20220355376A1
公开(公告)日：2022-11-10
申请号：US17814764
申请日：2022-07-25
Inventor： Hansang Kwon
Abstract: A method for manufacturing a functionally graded composite material for a printed circuit board (PCB) is proposed. The method may include preparing two or more types of mixed powders with different contents of polymer or ceramic powder, each mixed powder comprising (i) a metal powder comprising a powder made of aluminum or an aluminum alloy and a powder of magnesium and (ii) the polymer or ceramic powder. The method may also include laminating the two or more types of mixed powders to form a functionally graded laminate in which a ratio of the content of the polymer or ceramic powder to the content of the metal powder in each of layers stacked in sequence from bottom to the top of the laminate differs. The method may further include preparing a functionally graded composite material by sintering the functionally graded laminate by pressureless sintering or spark plasma sintering.
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公开(公告)号：US11426728B2
公开(公告)日：2022-08-30
申请号：US16660331
申请日：2019-10-22
Inventor： Do Jin Im , Myung Mo Ahn , Byeong Sun Yoo
Abstract: An electroporation device is disclosed, which includes a first tubular electrode including a first inlet and a first outlet; an aqueous solution supply connected to the first tubular electrode and configured for supplying an aqueous solution to the first tubular electrode and for allowing a droplet of the aqueous solution to be discharged from the first outlet of the first tubular electrode, the aqueous solution contains a cell and a delivery target substance; a second tubular electrode including a second inlet and a second outlet, wherein the second inlet is spaced away from the first outlet at a spacing corresponding to a size of a portion of the droplet; a power supply for applying a voltage to the electrodes for electroporation of the cell in the droplet; and a droplet sucking unit connected to the second electrode and configured for allowing the droplet to be sucked into the second electrode.
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公开(公告)号：US11410283B2
公开(公告)日：2022-08-09
申请号：US17275820
申请日：2019-02-08
Applicant: SAMSUNG ELECTRONICS CO., LTD. , PUKYONG NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATION
Inventor： Younghoon Jeong , Hoang Nam Nguyen , Chul Lee , Joseph Kim , Youngsu Moon , Van Tu Vo , Jaemoon Lim
Abstract: Disclosed is an electronic device. The electronic device obtains a first histogram regarding a difference in gradation between adjacent pixels of an input image based on the first maximum output brightness, obtains a second histogram regarding a difference in gradation between the adjacent pixels of the input image based on the second maximum output brightness, obtains a third histogram regarding a difference in brightness between the adjacent pixels of the input image based on the first HVS recognition information, obtains a fourth histogram regarding a difference in brightness between the adjacent pixels of the input image based on the second HVS recognition information, and obtains a brightness value regarding the input image corresponding to the second maximum output brightness based on a difference between a first value obtained based on information on the first and third histograms and a second value obtained based on the second and fourth histograms.
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公开(公告)号：US20210331238A1
公开(公告)日：2021-10-28
申请号：US16909650
申请日：2020-06-23
Inventor： Hansang Kwon
IPC: B22F3/20 , H01M10/6568 , H01M10/613 , B22F9/04
Abstract: This application relates to a method of manufacturing a cooling pipe for a powertrain of an electric vehicle. The method may include preparing a powdered composite material by ball-milling aluminum alloy particles and carbon nanotube particles. The method may also include preparing a multilayer billet containing the powdered composite material and comprising a core layer and two or more shell layers surrounding the core layer. The method may further include extruding the multilayer billet to produce a pipe-shaped extrusion. The core layer is made of the powdered composite material or an aluminum alloy, the outermost shell layer of the two or more shell layers is made of an aluminum alloy, and the remaining shell layers are made of an aluminum alloy. This application also relates to a cooling pipe manufactured by the method, an electric vehicle motor and an electric vehicle battery pack casing including the cooling pipe.
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公开(公告)号：US20210323059A1
公开(公告)日：2021-10-21
申请号：US16909539
申请日：2020-06-23
Inventor： Hansang Kwon
IPC: B22F3/105 , H01R31/08 , H01R13/629
Abstract: This application relates to a method of preparing a composite material for an electric wiring connector. In one embodiment, the method includes preparing a powder mixture including (i) a metal powder composed of aluminum or aluminum alloy particles and magnesium particles and (ii) a polymer powder. The method may also include sintering the powder mixture to produce a composite material for the electric wiring connector using a spark plasma sintering (SPS) process. This application also relates to a composite material for an electric wiring connector prepared through the method described above. This application further relates to a method of manufacturing an electric wiring connector, the method including forming a housing of the electric wiring connector with the composite material. This application further relates to an electric wiring connector manufactured by the method.
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