公开(公告)号：US11680205B2

公开(公告)日：2023-06-20

申请号：US17369961

申请日：2021-07-08

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Ho Seong Jang ,  Gumin Kang ,  A-Ra Hong ,  Seung Yong Lee

IPC: C09K11/77 ,  C09K11/02 ,  G01N21/64 ,  B82Y20/00

CPC classification number: C09K11/7773 ,  C09K11/02 ,  B82Y20/00 ,  G01N21/64

Abstract: Provided is a core/multishell tetragonal upconversion nanophosphor capable of being excited by near-infrared (NIR) light having wavelengths of 800±20 nm, 980±20 nm, and 1532±20 nm to emit light of blue, green, red, and combinations thereof.

公开(公告)号：US10821421B2

公开(公告)日：2020-11-03

申请号：US16215521

申请日：2018-12-10

Applicant: Korea Institute of Science and Technology

Inventor： Seung Yong Lee ,  Sang Soo Han ,  Hyo Bin Nam ,  Byung Chul Yeo ,  So Hye Cho ,  Ho Seong Jang

IPC: B01J23/89 ,  C01B15/029 ,  B01J35/00 ,  B01J35/02 ,  B01J37/16

Abstract: A catalyst and a catalyst composition, a method for preparing thereof, and a method for synthesizing of hydrogen peroxide using them are provided. The catalyst and the catalyst composition contains: an alloy of two elements, wherein the elements are Pt (Platinum) and Ni (Nickel). The present disclosure enables (a) replacing a high-priced palladium (Pd) catalyst with a new catalyst, (b) providing a high-active catalyst which catalyzes the direct synthesis reaction of the hydrogen peroxide.

公开(公告)号：US10532596B2

公开(公告)日：2020-01-14

申请号：US15698913

申请日：2017-09-08

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyungduk Ko ,  Kisun Park ,  Ho Seong Jang ,  Il Ki Han

IPC: B41M3/14 ,  B42D25/328 ,  G09F3/00 ,  B42D25/47 ,  B42D25/382 ,  B42D25/42 ,  B42D25/373 ,  G07D7/12 ,  G07D7/005 ,  G09F3/02

Abstract: A plasmonic structure having an identifier pattern indicating a genuine product for preventing counterfeiting, falsification or reuse, includes a metal layer; a photoconversion pattern layer including a plurality of photoconverting nanoparticles disposed in a pattern on and in direct contact with the metal layer; a metal pattern layer including a plurality of metal particles disposed in a pattern on and in direct contact with the photoconversion pattern layer; and an adhesive film disposed on the metal pattern layer. An identifier pattern indicating a genuine product is easily identified even by visual inspection after irradiation with infrared light irradiation. The plasmonic structure is fundamentally impossible to re-assemble after deformation of the plasmonic structure caused by disassembly of a product or packaging container, thereby preventing counterfeiting, falsification or reuse.

公开(公告)号：US20190176133A1

公开(公告)日：2019-06-13

申请号：US16215521

申请日：2018-12-10

Applicant: Korea Institute of Science and Technology

Inventor： Seung Yong Lee ,  Sang Soo Han ,  Hyo Bin Nam ,  Byung Chul Yeo ,  So Hye Cho ,  Ho Seong Jang

IPC: B01J23/89 ,  B01J35/02 ,  C01B15/029

CPC classification number: B01J23/892 ,  B01J35/0013 ,  B01J35/002 ,  B01J35/02 ,  B01J37/16 ,  C01B15/029

Abstract: A catalyst and a catalyst composition, a method for preparing thereof, and a method for synthesizing of hydrogen peroxide using them are provided. The catalyst and the catalyst composition contains: an alloy of two elements, wherein the elements are Pt (Platinum) and Ni (Nickel). The present disclosure enables (a) replacing a high-priced palladium (Pd) catalyst with a new catalyst, (b) providing a high-active catalyst which catalyzes the direct synthesis reaction of the hydrogen peroxide.

公开(公告)号：US20190067505A1

公开(公告)日：2019-02-28

申请号：US15792478

申请日：2017-10-24

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyungduk KO ,  Il Ki Han ,  Ho Seong Jang

IPC: H01L31/054 ,  H01L31/043 ,  H01L31/05

Abstract: A solar cell panel includes a light concentration layer on which sunlight is incident and concentrated; a cladding layer stacked on bottom of the light concentration layer; a light conversion/light guide layer including a light guide layer stacked on bottom of the light concentration layer to guide visible light to a side surface and a light conversion member to convert ultraviolet or infrared light to visible light; and a solar cell array placed along a side surface of the light conversion/light guide layer and having multiple solar cells electrically connected. The solar cell panel and a window comprising the same can increase efficiency of a window-type solar module by converting and concentrating light in a wavelength range not contributing to solar cell efficiency.

公开(公告)号：US10159758B2

公开(公告)日：2018-12-25

申请号：US15871062

申请日：2018-01-15

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Ho Seong Jang ,  So Hye Cho ,  Seung Yong Lee ,  A Ra Hong

IPC: A61K9/00 ,  A61K49/00 ,  C09K11/77 ,  G01N21/64 ,  B82Y5/00 ,  H01G9/20

Abstract: Provided is a nanophosphor having a core/double shell structure, the nanophosphor including a upconversion core including a Yb3+, Ho3+, and Ce3+− co-doped fluoride-based nanophosphor represented by Formula 1; a first shell surrounding at least a portion of the upconversion core, and comprising a Nd3+ and Yb3+ co-doped fluoride-based crystalline composition represented by Formula 2; and a second shell surrounding at least a portion of the first shell, and having paramagnetic properties represented by Formula 3.

公开(公告)号：US09796923B2

公开(公告)日：2017-10-24

申请号：US14250769

申请日：2014-04-11

Applicant: Korea Institute of Science and Technology

Inventor： Ho Seong Jang ,  Kyoungja Woo ,  Su Yeon Kim

IPC: A61K9/00 ,  C09K11/77 ,  C09K11/02 ,  A61K49/00 ,  A61K49/18

CPC classification number: C09K11/7773 ,  A61K49/0067 ,  A61K49/1827 ,  C09K11/025 ,  C09K11/7791

Abstract: A nanophosphor in accordance with one exemplary embodiment of the present disclosure includes a fluoride-based nanoparticle co-doped with Ce3+ and one selected from a group consisting of Tb3+, Eu3+ and a combination thereof. The nanophosphor may be excited by a single wavelength of ultraviolet rays to emit various colors of green, yellow, orange, red and the like, and exhibit high photostability without photoblinking. The nanophosphor may be utilized as a bio imaging contrast agent, a transparent display device, an anti-counterfeit code and the like.

公开(公告)号：US09422474B2

公开(公告)日：2016-08-23

申请号：US13869453

申请日：2013-04-24

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Ho Seong Jang ,  Kyoungja Woo ,  Kipil Lim

IPC: A61K9/14 ,  C09K11/77 ,  C09K11/02 ,  B82Y40/00 ,  B82Y20/00

CPC classification number: C09K11/7773 ,  B82Y20/00 ,  B82Y40/00 ,  C09K11/02 ,  Y10S977/773 ,  Y10S977/892 ,  Y10S977/896 ,  Y10S977/93 ,  Y10S977/948 ,  Y10S977/95 ,  Y10T428/2982

Abstract: The present invention relates to a nanophosphor and a synthesis method thereof, and provides a nanophosphor comprising a first compound of Formula 1, wherein the first compound is fluoride-based one which is co-doped with Ce3+ and Tb3+. NaGd1−p−q−rMrF4:Ce3+p,Tb3+q  (1) In the Formula 1, descriptions on the p, q, r and M are overlapped with what was described in the detailed description of the present invention, so their concrete description are omitted. The nanophosphor has good light emission intensity and magnetic property as well as up-conversion and/or down-conversion property able to emit visible light after excitation by infrared and/or ultraviolet rays, so can be applied to a contrast agent and a counterfeit prevention code.

Abstract translation: 纳米荧光体及其合成方法技术领域本发明涉及纳米荧光体及其合成方法，其特征在于，提供包含第一化合物的纳米荧光体，其中第一化合物为与Ce 3+和Tb 3+共掺杂的基于氟化物的纳米荧光体。 NaGd1-p-q-rMrF4：Ce3 + p，Tb3 + q（1）在式1中，关于p，q，r和M的描述与本发明的详细描述中所描述的相互重叠， 具体描述省略。 纳米荧光体具有良好的发光强度和磁特性以及能够通过红外线和/或紫外线激发后能够发出可见光的上转换和/或下变换特性，因此可以应用于造影剂和防伪 码。