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公开(公告)号:US11002619B2
公开(公告)日:2021-05-11
申请号:US16389473
申请日:2019-04-19
Inventor: Seong Jun Kim , Choon-Gi Choi , Shuvra Mondal
Abstract: Provided is a pressure-strain sensor including a graphene structure having a three-dimensional porous structure, planar sheets provided on a surface of the graphene structure, and a polymer layer configured to cover the graphene structure and the planar sheets, wherein each of the planar sheets contains a transition metal chalcogenide compound.
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公开(公告)号:US11382244B2
公开(公告)日:2022-07-05
申请号:US16566221
申请日:2019-09-10
Inventor: Seong Jun Kim , Choon Gi Choi , Tam Van Nguyen , Bok Ki Min , Shuvra Mondal , Yoonsik Yi
Abstract: Provided is a temperature-pressure complex sensor with an anti-radiation property including a first sensing material which is a porous conductive film, and second sensing materials which are dispersedly disposed on a surface of the first sensing material. The second sensing materials may include a conductive structure having a two-dimensional crystal structure, and nanoparticles having a radiation shielding property which are disposed between crystal layers of the conductive structure.
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公开(公告)号:US11894224B2
公开(公告)日:2024-02-06
申请号:US17834463
申请日:2022-06-07
Inventor: Yoon-Ho Song , Jeong-Woong Lee , Jun-Tae Kang , Seong Jun Kim , Jae-Woo Kim , Sora Park , Ki Nam Yun , Jin-Woo Jeong , Sunghoon Choi
IPC: H01J5/04
CPC classification number: H01J5/04
Abstract: Provided is a high voltage driving device including a housing and a cathode, an anode, and an insulation structure, which are disposed in the housing. Here, the cathode and the anode are spaced apart from each other with the insulation structure therebetween. Also, the insulation structure includes a first solid insulator disposed adjacent to the cathode and a second solid insulator disposed adjacent to the anode. Also, the first solid insulator has first volumetric resistivity less than second volumetric resistivity of the second solid insulator, and the first solid insulator contacts the cathode.
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