公开(公告)号：US11479474B2

公开(公告)日：2022-10-25

申请号：US16498307

申请日：2018-10-23

Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE

Inventor： Eun-Ah You ,  Wansun Kim ,  Tae Geol Lee

IPC: C01G7/00 ,  G01N21/65 ,  B82B1/00 ,  G01N33/543 ,  G01N33/553 ,  B82Y30/00 ,  B82Y35/00 ,  B82Y40/00

Abstract: Provided is a method of preparing composite nanoparticles, which includes: a) preparing a metal nanocore having a nano-star shape from a first reaction solution in which a first metal precursor is mixed with a first buffer solution; b) fixing a Raman reporter in the metal nanocore; and c) forming a metal shell, which surrounds the nanocore in which the Raman reporter is fixed, from a second reaction solution in which the nanocore in which the Raman reporter is fixed, and a second metal precursor are mixed with a second buffer solution.

公开(公告)号：US20220330870A1

公开(公告)日：2022-10-20

申请号：US17853827

申请日：2022-06-29

Applicant: Korea Research Institute of Standards and Science

Inventor： Kwon-Kyu YU ,  Yong-Ho LEE ,  Hyukchan KWON ,  Jin-Mok KIM ,  Sang-Kil LEE ,  Bokyung KIM ,  Min-Young KIM ,  Kiwong KIM

IPC: A61B5/245 ,  A61B5/00

Abstract: A dual-helmet magnetoencephalography measuring apparatus according to an example embodiment includes: an internal container storing a liquid refrigerant; an external container disposed to surround the internal container and including a first external helmet and a second external helmet disposed to be spaced apart from each other; a first sensor-mounted helmet disposed between the external container and the internal container to surround the first external helmet; a second sensor-mounted helmet disposed between the external container and the internal container to surround the second external helmet; a plurality of first SQUID sensor modules disposed on the first sensor-mounted helmet; and a plurality of second SQUID sensor modules disposed on the second sensor-mounted helmet. The internal container and the external container are tilted in a vertical direction.

公开(公告)号：US20220326288A1

公开(公告)日：2022-10-13

申请号：US17708707

申请日：2022-03-30

Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE

Inventor： Youngseob SEO

IPC: G01R29/08 ,  A61F2/32 ,  A61F2/46

Abstract: A method of measuring a specific absorption rate (SAR) of a hip joint implant using magnetic resonance imaging (MRI), includes: arranging the hip joint implant in a human lower body-shaped phantom; arranging an electric field sensor around the hip joint implant; providing radio frequency (RF) energy according to an MRI sequence to the human phantom; and calculating the SAR of the hip joint implant from strength of an electric field measured by the electric field sensor.

公开(公告)号：US20220283189A1

公开(公告)日：2022-09-08

申请号：US17637302

申请日：2019-11-11

Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE

Inventor： Tae Geol LEE ,  Jin Gyeong SON ,  Sunho JOH

IPC: G01N33/82 ,  G01N21/31 ,  G01N30/72

Abstract: A method of detecting vitamin D in blood using laser desorption/ionization mass spectrometry (LDI-MS) and an apparatus therefor according to the present invention are not complicated in a measurement, do not require a number of measurement steps, and allow for easy measurement and collection of results in real time with a quick analysis. In addition, precise analysis may be performed even at a lower concentration of a sample, such that sensitivity and precision are excellent, various subtypes of vitamin D may be simultaneously detected, a throughput is high, and structural analysis and quantitative analysis of vitamin D that has undergone a metabolic process in blood may be accurately performed without a matrix interference.

公开(公告)号：US11378665B2

公开(公告)日：2022-07-05

申请号：US16321210

申请日：2017-08-09

Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE

Inventor： Jae-Wan Kim ,  Jae-Yong Lee ,  Jong-Ahn Kim ,  Jae-Heun Woo ,  Young Pyo Hong

IPC: G01S7/4865 ,  G06T7/70 ,  G01C11/06 ,  G06T7/55 ,  H04N5/232 ,  G01S17/10 ,  G01S17/89

Abstract: A distance measuring apparatus includes an image sensor and an image sensor driver. The image sensor includes a photodiode, a first capacitor and a second capacitor, and a first transfer gate and a second transfer gate configured to transmit an output of the photodiode to the respective first and second capacitors. The image sensor driver is configured to complementarily drive the first transfer gate and the second transfer gate.

公开(公告)号：US11322288B2

公开(公告)日：2022-05-03

申请号：US16574591

申请日：2019-09-18

Applicant: Korea Research Institute of Standards and Science

Inventor： Seong Min Hwang ,  Jeong Hyun Shim ,  Ingo Hilschenz ,  Seong-Joo Lee ,  Kiwoong Kim

IPC: H01F27/28 ,  H01F27/10 ,  G01R33/34

Abstract: A fluid-cooled electromagnet includes an upper housing, a lower housing vertically aligned with the upper housing, a plurality of pancake coils disposed between the upper housing and the lower housing to be spaced apart from each other and sequentially stacked to have a washer shape, and at least one spacer, disposed between the upper housing and the lower housing, accommodating the pancake coils at regular intervals.

公开(公告)号：US11287549B2

公开(公告)日：2022-03-29

申请号：US16358858

申请日：2019-03-20

Applicant: Korea Research Institute of Standards and Science

Inventor： Yong-Gyoo Kim ,  In-Seok Yang ,  Sang-Bong Woo ,  Byung-Il Choi ,  Sang-Wook Lee ,  Woong Kang ,  Youn-Kyun Oh ,  Sung-Hun Kim ,  Seong-Chong Park ,  Young-Hee Lee

IPC: G01K15/00 ,  G01W1/08

Abstract: The present invention relates to an apparatus for calibrating temperature and humidity of a radio-sonde to be adapted to the upper air environment using an upper air simulation chamber including: an isotemperature-isohumidity unit calibrating temperature and humidity measured via the radio-sonde; a sunlight generation unit coupled to the isotemperature-isohumidity unit and generating sunlight to be irradiated to the isotemperature-isohumidity unit; an air supply unit coupled to the isotemperature-isohumidity unit and controlling the pressure and temperature of atmospheric air, allowing supplying air to the isotemperature-isohumidity unit; a sonic nozzle coupled to the isotemperature-isohumidity unit and creating an air flow set at below a set pressure; and a vacuum pump coupled to the isotemperature-isohumidity unit and discharging air which penetrates the isotemperature-isohumidity unit.

公开(公告)号：US11193988B2

公开(公告)日：2021-12-07

申请号：US16687213

申请日：2019-11-18

Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE ,  KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY ,  KOREA BASIC SCIENCE INSTITUTE

Inventor： Kyoung-Woong Moon ,  Chan Yong Hwang ,  Byoung-Chul Min ,  Seung-young Park

IPC: G01R33/05 ,  H01F10/30 ,  G01R33/12 ,  G01R33/00 ,  G01R33/032 ,  H01F10/32

Abstract: Provided is a method of measuring a magnitude of magnetization of a perpendicular magnetic thin film, including: forming a stripe pattern in which a first magnetic domain that extends in a y direction and is magnetized in a z direction and a second magnetic domain that extends in the y direction and is magnetized in a direction opposite to the z direction are arranged alternately in an x direction, in a perpendicular magnetic thin film that extends in an xy plane; changing widths in the x direction, of the first and second magnetic domains by applying a magnetic field having a predetermined magnitude, in the z direction, to the perpendicular magnetic thin film; and calculating an absolute value of the magnetization of the perpendicular magnetic thin film on the basis of a ratio between the widths in the x direction, of the first magnetic domain and the second magnetic domain.

公开(公告)号：US20210341283A1

公开(公告)日：2021-11-04

申请号：US16610692

申请日：2018-01-26

Applicant: Korea Research Institute of Standards and Science

Inventor： Young-sik Ghim ,  Hyug-gyo Rhee

IPC: G01B11/06 ,  G01N21/55 ,  G02B27/14 ,  G01B9/02

Abstract: The present disclosure relates to an apparatus and method for measuring the thickness and refractive index of a multilayer thin film by measuring angle-resolved spectral reflectance according to light polarization. According to an exemplary embodiment of the present disclosure, the apparatus and method for measuring the thickness and refractive index of a multilayer structure using angle-resolved spectroscopic reflectometry is capable of measuring and analyzing thickness and refractive index of each layer of a structure having a multilayer thin film through an s-polarized imaging and a p-polarized imaging of the reflective light located in a back focal plane of an objective lens which are acquired through an angle-resolved spectral imaging acquisition part.

公开(公告)号：US20210181090A1

公开(公告)日：2021-06-17

申请号：US17256966

申请日：2019-07-03

Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE

Inventor： Yong Jai CHO ,  Won CHEGAL ,  Hyun Mo CHO

IPC: G01N21/21 ,  G01N21/13 ,  G01B11/27

Abstract: The present invention relates to a normal incidence ellipsometer and a method for measuring the optical properties of a sample by using same. The purpose of the present invention is to provide: a normal incidence ellipsometer in which a wavelength-dependent compensator is replaced with a wavelength-independent linear polarizer such that equipment calibration procedures are simplified while a measurement wavelength range expansion can be easily implemented; and a method for measuring the optical properties of a sample by using same.