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公开(公告)号:US20220023882A1
公开(公告)日:2022-01-27
申请号:US17380066
申请日:2021-07-20
Applicant: Research & Business Foundation Sungkyunkwan University , SAMSUNG LIFE PUBLIC WELFARE FOUNDATION
Inventor: SangWoo KIM , Byung Ok CHOI , Min Ki KANG , Jeong Hwan LEE , Young Jun KIM , In Yong SUH
Abstract: Disclosed is a fine dust collecting device using a human body based electrostatic energy harvesting element. The fine dust collecting filter device includes an electrostatic energy harvesting element for collecting and generating current; a charging filter connected to the electrostatic energy harvesting element such that the charging filter is electrically charged to have a first polarity and thus electrically charges fine dust particles; a collecting filter connected to the electrostatic energy harvesting element such that the collecting filter is electrically charged to have a second polarity opposite to the first polarity; and a rectifier disposed between and connected to the electrostatic energy harvesting element, and the charging filter and the collecting filter.
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公开(公告)号:US20200006587A1
公开(公告)日:2020-01-02
申请号:US16488445
申请日:2017-07-18
Inventor: Young-jun PARK , Sang-woo KIM , Yun-kwon PARK , Hong-joon YOON , TaeYun KIM , Hyoungtaek KIM , Hye-jeong PARK , Youngin SON , Wanchul SEUNG , Hanjun RYU , Jeong Hwan LEE
IPC: H01L31/054 , G02B19/00 , H02N1/04
Abstract: An energy harvesting apparatus including light collecting particles is provided. The energy harvesting apparatus includes a light collecting layer for collecting light incident thereon from the outside, a first charging member on a first surface of the light collecting layer, a second charging member on a surface of the light collecting layer opposite the first surface, and solar cells on opposite light exit surfaces between the first and second surfaces of the light collecting layer.
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公开(公告)号:US20180129286A1
公开(公告)日:2018-05-10
申请号:US15788902
申请日:2017-10-20
Inventor: Sang Woo KIM , Wan Chul SEUNG , Hong Joon YOON , Sung Soo KWAK , Dong Hoon KIM , Tae Yun KIM , Min Ki KANG , Kang Hyuck LEE , Sung Kyun KIM , Jeong Hwan LEE , Seong Su KIM
IPC: G06F3/01
CPC classification number: G06F3/016 , G06F3/011 , G09B21/004
Abstract: There is provided a tactile feedback device comprising: an array of surface charge generation units; and an array of pressure-generation units, wherein the array of the pressure-generation units is spaced apart from the array of the surface charge generation units, wherein the array of the pressure-generation units is movable relative to the array of the surface charge generation units, wherein an attractive or repulsive force is generated between a corresponding surface charge generation unit of the array of surface charge generation units and a corresponding pressure-generation unit of the array of the pressure-generation units, based on a polarity of surface charges induced in the corresponding surface charge generation unit.
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