公开(公告)号：US20220233992A1

公开(公告)日：2022-07-28

申请号：US17616523

申请日：2020-06-22

Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

Inventor： Hyo Soo LEE ,  Hai Joong LEE ,  Hyung Won SHIN ,  Hye Jin LEE

IPC: B01D49/00 ,  C02F1/36

Abstract: According to an embodiment of the present invention, in order to perform fine particle agglomeration by outputting a low frequency sound wave and then remove fine particles, there is provided a method for fine particle agglomeration, the method including: an initial fine particle measuring step of generating fine particle measurement data including a pollution level of fine particles in a purification region and outputting the data to a sound source converting unit, by a fine particle measuring unit; a low frequency and sound pressure data extracting step of extracting a low frequency and sound pressure of a low frequency sound source stored in a storage to be used for agglomeration of fine particles, based on the fine particle measurement data, by the sound source converting unit; a sound source converting step of converting an output sound source into the low frequency sound source such that the low frequency sound source has the extracted low frequency and sound pressure data, by the sound source converting unit; and a fine particle agglomeration performing step of causing fine particles to agglomerate by receiving the low frequency sound source and outputting the low frequency sound source as a low frequency sound wave for agglomeration of fine particles, by a low frequency sound wave generating unit.

公开(公告)号：US20200086680A1

公开(公告)日：2020-03-19

申请号：US16467725

申请日：2017-12-08

Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

Inventor： Hyo Soo LEE ,  Hyeong Won SHIN ,  Yeo Reum LEE

IPC: B44F9/10 ,  B44C5/04 ,  B44C1/14 ,  C23C14/08 ,  C23C14/34 ,  C23C14/04

Abstract: Disclosed herein is a colored metal that includes a metal substrate containing a first metal, an oxidation degree control pattern positioned on the metal substrate, and increasing or decreasing a degree of oxidation of the first metal over time, and a coating film positioned on the metal substrate where the oxidation degree control pattern is positioned, wherein a first region of the metal substrate where the oxidation degree control pattern is present thereon and a second region of the metal substrate where the oxidation degree control pattern is not present thereon exhibit different colors due to a difference in degree of oxidation over time.

公开(公告)号：US20170328831A1

公开(公告)日：2017-11-16

申请号：US15529713

申请日：2015-11-11

Applicant: Korea Institute of Industrial Technology

Inventor： Hyo Soo LEE ,  Hyouk Chon KWON ,  Hai Joong LEE ,  Heong Won SHIN

IPC: G01N21/25 ,  G01N33/20

CPC classification number: G01N21/25 ,  G01J3/00 ,  G01J3/46 ,  G01N21/64 ,  G01N21/65 ,  G01N33/20

Abstract: The present invention relates to a method for analyzing the color of a color alloy and, more particularly, to a method for analyzing the color of a color alloy wherein, on the basis of the fact that a different color appears according to the composition of an alloy, the wavelength-wise reflectance related to a color, which is held according to each alloy composition, and that related to a color, which is held by a measurement object that is to be measured, are compared, thereby determining the color held by the measurement object.