公开(公告)号：US20240019586A1

公开(公告)日：2024-01-18

申请号：US17989246

申请日：2022-11-17

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Taikjin LEE ,  Beomju SHIN ,  Jungho LEE ,  Changsu YU ,  Taehun KIM ,  Chulki KIM ,  Jaehun KIM

IPC: G01S19/48

CPC classification number: G01S19/48

Abstract: The present disclosure relates to a method for performing vehicle position recognition using a geomagnetic sensor by calibrating the geomagnetic sensor on the basis of a geomagnetic sensor value stored in a database in advance before entrance to an area in which position recognition through a GPS is impossible. Thus, it is possible to accurately detect a position of a vehicle using the geomagnetic sensor even in a structure such as a tunnel.

公开(公告)号：US20200284660A1

公开(公告)日：2020-09-10

申请号：US16809275

申请日：2020-03-04

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY ,  Center for Advanced Meta-Materials

Inventor： Minah SEO ,  Sang-Hun LEE ,  Chulki KIM ,  Jae Hun KIM ,  Taikjin LEE ,  Deok Ha WOO

IPC: G01J5/08 ,  G02B1/00

Abstract: One embodiment of the present invention provides an optical imaging apparatus using a metamaterial including a metamaterial array sensor which includes a plurality of unit cells made of a metamaterial and is positioned adjacent to an observation object, an imaging beam providing unit which provides an imaging beam toward the metamaterial array sensor, a control beam providing unit which controls a control beam provided to the unit cell to block the imaging beam incident on the unit cell, and an imaging beam measuring unit which measures a unit cell imaging beam transmission amount passing through the unit cell by measuring an imaging beam transmission amount of the metamaterial array sensor when the imaging beam passes through the unit cell and an imaging beam transmission amount of the metamaterial array sensor when the control beam is focused on the unit cell to block the imaging beam incident on the unit cell.

公开(公告)号：US20200274048A1

公开(公告)日：2020-08-27

申请号：US16666401

申请日：2019-10-29

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Chulki KIM ,  Jae Hun KIM ,  Taikjin LEE ,  Minah SEO ,  Donggeun LEE

IPC: H01L39/10 ,  H01L39/22

Abstract: According to one aspect of the present invention, a switching device using an electron shuttle includes a substrate, a center portion fixed onto the substrate, a first wing portion extending from the center portion in a first direction and spaced apart from the substrate, a second wing portion extending from the center portion in a second direction and spaced apart from the substrate, a conductive first electron shuttle connected to the first wing portion and disposed to be spaced apart from the substrate, and a conductive second electron shuttle connected to the second wing portion and disposed to be spaced apart from the substrate.

公开(公告)号：US20190086458A1

公开(公告)日：2019-03-21

申请号：US15874415

申请日：2018-01-18

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Minah SEO ,  Sanghun LEE ,  Chulki KIM ,  Q-Han PARK ,  Jongho CHOE ,  Jinsoo KIM

IPC: G01R27/26 ,  G01N21/3563

CPC classification number: G01R27/2682 ,  G01N21/3563 ,  G01N21/3581 ,  G01N21/8422

Abstract: Disclosed herein is a system for non-contact measurement of an optoelectronic property. The system includes a sensing element configured to amplify an electromagnetic wave having a specific frequency, a thin film disposed on the sensing element such that an optoelectronic property of the thin film is measured, and an optoelectronic property measuring server configured to extract a physical property of the thin film based on the optoelectronic property of the thin film obtained when the electromagnetic wave amplified by the sensing element passes through the thin film.

公开(公告)号：US20150243917A1

公开(公告)日：2015-08-27

申请号：US14282026

申请日：2014-05-20

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Chulki KIM ,  Yeong Jun KIM ,  Young Mo JUNG ,  Seong Chan JUN ,  Taikjin LEE ,  Seok LEE ,  Young Tae BYUN ,  Deok Ha WOO ,  Sun Ho KIM ,  Min Ah SEO ,  Jae Hun KIM ,  Jong Chang YI

IPC: H01L51/05 ,  H01L51/10 ,  H01L51/00

CPC classification number: H01L51/0558 ,  C01B32/194 ,  H01L51/0012 ,  H01L51/002 ,  H01L51/0045 ,  H01L51/0093 ,  H01L51/0562 ,  H01L51/0583 ,  H01L51/107

Abstract: A method for forming a PN junction in graphene includes: forming a graphene layer, and forming a DNA molecule layer on a partial region of the graphene layer, the DNA molecule layer having a nucleotide sequence structure designed to provide the graphene layer with a predetermined doping property upon adsorption on the graphene layer. The DNA molecule has a nucleotide sequence structure designed for doping of graphene so that doped graphene has a specific semiconductor property. The DNA molecule is coated on the surface of the graphene layer of which the partial region is exposed by micro patterning, and thereby, PN junctions of various structures may be formed by a region coated with the DNA molecule and a non-coated region in the graphene layer.

Abstract translation: 用于在石墨烯中形成PN结的方法包括：形成石墨烯层，并在石墨烯层的部分区域上形成DNA分子层，所述DNA分子层具有设计成为石墨烯层提供预定掺杂物的核苷酸序列结构 在石墨烯层上吸附时的性质。 DNA分子具有设计用于掺杂石墨烯的核苷酸序列结构，使得掺杂的石墨烯具有特定的半导体性质。 通过微图案化将DNA分子涂覆在其部分区域被暴露的石墨烯层的表面上，由此可以通过涂覆有DNA分子的区域和在其中的非涂覆区域形成各种结构的PN结 石墨烯层。

公开(公告)号：US20150131134A1

公开(公告)日：2015-05-14

申请号：US14185419

申请日：2014-02-20

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Chulki KIM ,  Jae Hun KIM ,  Byeong Ho PARK ,  Seok LEE ,  Seong Chan JUN ,  Taikjin LEE

IPC: G02F3/00

CPC classification number: G02F3/00 ,  B82Y10/00 ,  B82Y20/00 ,  G02B27/286 ,  G02F2202/36 ,  G02F2203/07 ,  Y10S977/941

Abstract: An optical logic gate includes: a DNA based nanostructure including DNA and metal nanoparticles coupled to the DNA, the DNA based nanostructure being configured to rotate a polarization plane of an incident light; a polarizer to which light passing through the DNA based nanostructure is incident, the polarizer being configured to extract a component in a direction of a predetermined reference axis from light whose polarization plane is rotated by the DNA based nanostructure; and a detection unit to which light passing through the polarizer is incident, the detection unit being configured to generate a logic signal based on a result obtained by comparing the intensity of the component in the reference axis direction extracted by the polarizer with a predetermined threshold value.

Abstract translation: 光学逻辑门包括：DNA基纳米结构，包括与DNA连接的DNA和金属纳米颗粒，所述基于DNA的纳米结构被配置为旋转入射光的偏振面; 入射穿过基于DNA的纳米结构的光的偏振器，所述偏振器被配置为从偏振面被基于DNA的纳米结构旋转的光沿预定参考轴的方向提取成分; 以及检测单元，通过所述偏振器的光入射到所述检测单元，所述检测单元被配置为基于通过将由所述偏振器提取的参考轴方向上的分量的强度与预定阈值进行比较而获得的结果来生成逻辑信号 。