公开(公告)号：US20170368737A1

公开(公告)日：2017-12-28

申请号：US15363700

申请日：2016-11-29

Applicant: Hyundai Motor Company ,  Kia Motors Corporation ,  Korea University Research and Business Foundation

Inventor： Jin Ho HWANG ,  Keon Soo JIN ,  Dae Ig JUNG ,  Ju Hyeon SHIN ,  Heon LEE

IPC: B29C59/00 ,  B29K227/06

CPC classification number: B29C59/005 ,  B29C35/02 ,  B29C59/02 ,  B29C2035/0827 ,  B29K2227/06 ,  B29K2995/002 ,  B44C1/24 ,  B44F9/00 ,  B44F9/12

Abstract: A method of duplicating texture and pattern of a natural material using a low temperature embossing process is provided. More particularly, in the method of duplicating texture and pattern of a natural material using a low temperature embossing process, a polymer resin having low glass transition temperature is coated on a surface of the natural material and then low temperature embossing process is performed thereon at a specific temperature and a specific pressure to duplicate a distinct texture and a fine pattern of the natural material as they are, thereby improving luxurious and aesthetic properties and achieving a large area and mass production, such that it may be applied to interior and exterior materials of a car, a case of a cellular phone and a laptop, home appliances, or the like.

公开(公告)号：US20250136820A1

公开(公告)日：2025-05-01

申请号：US18693765

申请日：2023-06-07

Applicant: Korea University Research and Business Foundation

Inventor： Heon LEE

IPC: C09D5/33 ,  C09D7/40 ,  C09D7/61 ,  C09D7/65

Abstract: The present invention relates to a radiative cooling paint consisting of ceramic fine particles as pigments, a polymer resin as a binder, and a solvent. According to the present invention, a substrate is coated with the radiative cooling paint, and then a paint film layer is formed. The paint film layer performs a radiative cooling function by preventing energy inflow from incident sunlight by maximizing reflection of incident sunlight; minimizing absorption of incident sunlight; and maximizing emission of long-wavelength infrared light corresponding to 8 μm to 13 μm and increasing energy discharge through emission of long-wavelength infrared light, and pores with a volume of 3% to 50% are formed inside the paint film layer to enhance reflection of incident sunlight without reducing emission of long-wavelength infrared light.

公开(公告)号：US20210310700A1

公开(公告)日：2021-10-07

申请号：US15734643

申请日：2020-10-14

Applicant: Korea University Research and Business Foundation

Inventor： Heon LEE ,  Pil-Hoon JUNG ,  Soomin SON ,  Dongwoo CHAE ,  Yuting LIU

IPC: F24S70/25 ,  F24S50/80 ,  F24S70/225

Abstract: The present invention discloses a radiative cooling device and a method of manufacturing the same. Specifically, the radiative cooling device according to an embodiment of the present invention includes a reflective layer formed on a substrate and responsible for reflecting sunlight having wavelengths corresponding to ultraviolet, visible, and near-infrared regions; and a radiative cooling layer formed on the reflective layer and responsible for absorbing sunlight having a wavelength corresponding to a mid-infrared region and emitting the sunlight as heat, wherein the radiative cooling layer includes a first radiation layer including an uneven pattern; and a second radiation layer formed on the first radiation layer and having a refractive index different from that of the first radiation layer.

公开(公告)号：US20180045856A1

公开(公告)日：2018-02-15

申请号：US15671922

申请日：2017-08-08

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION

Inventor： Sunghoon HONG ,  Heon LEE ,  Yong Suk YANG ,  In-Kyu YOU ,  Soo-Jung KIM ,  Hak-Jong CHOI

IPC: G02B1/00

CPC classification number: G02B1/007

Abstract: A metamaterial structure may include a first nanoparticle and a second nanoparticle containing a different material from the first nanoparticle. The first and second nanoparticles may be provided to be adjacent to each other and to be in an electrically-coupled state.

公开(公告)号：US20230304751A1

公开(公告)日：2023-09-28

申请号：US17918198

申请日：2021-04-08

Applicant: Korea University Research and Business Foundation

Inventor： Heon LEE ,  Soo Min SON ,  Dong Woo CHAE ,  Han Gyu LIM

IPC: F28F13/18

CPC classification number: F28F13/185 ,  F28F2255/20 ,  F28F2245/06

Abstract: The present invention relates to a technical idea of cooling the surface of a material or the internal temperature under the material by emitting heat under an element to the outside while minimizing absorption of light in the solar spectrum, and more particularly to a technology for developing a material having a high transmittance or high reflectance with respect to incident sunlight and a high absorptivity selectively in a wavelength range of 8 μm to 13 μm corresponding to the sky window section of the atmosphere.

公开(公告)号：US20220163271A1

公开(公告)日：2022-05-26

申请号：US17110489

申请日：2020-12-03

Applicant: Korea University Research and Business Foundation

Inventor： Heon LEE ,  Dongwoo CHAE ,  Soomin SON ,  Hangyu LIM

IPC: F28F13/18 ,  B32B7/023 ,  B32B7/027

Abstract: The present invention relates to a technique of cooling a temperature on the surface or under a material by emitting heat under a radiative cooling device to the outside while minimizing the absorption of light in a solar spectrum by forming a paint coating layer with excellent radiative cooling performance on various surfaces. A radiative cooling device according to an embodiment of the present invention may include a paint coating layer formed by coating or dyeing on various surfaces a paint solution mixed with nano or microparticles of which a particle size and a composition are determined in consideration of infrared emissivity and reflectance to incident sunlight in a wavelength range corresponding to a sky window and a binder mechanically connecting the surfaces of the nano or microparticles in a solvent.

公开(公告)号：US20200264355A1

公开(公告)日：2020-08-20

申请号：US16062674

申请日：2016-12-15

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY ,  KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION

Inventor： Jonghwa SHIN ,  Heon LEE ,  Hyo Wook KIM ,  Hak Jong CHOI

IPC: G02B5/28 ,  G02B5/20

Abstract: A color filter according to an exemplary embodiment of the present invention includes a substrate; and a plurality of laminated members disposed with a predetermined period on the substrate, wherein each laminated member includes: a first metal layer; a dielectric layer positioned on the first metal layer; and a second metal layer positioned on the dielectric material, and the laminated member simultaneously excites electrical resonance and magnetic resonance in a visible ray region and transmits light that does not resonate, or a first single layer metal member and a plurality of second single layer metal members having different diameter from each other are included, and the single layer metal member excites the electric resonance to block light in the visible ray and transmits light for the wavelength in which the magnetic resonance and the electrical resonance of the single layer metal member are simultaneously excited.