公开(公告)号：US20190023044A1

公开(公告)日：2019-01-24

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

CPC classification number: B41M3/144 ,  B42D25/328 ,  B42D25/373 ,  B42D25/382 ,  B42D25/42 ,  B42D25/47 ,  G07D7/005 ,  G07D7/12 ,  G09F3/0292 ,  G09F3/0294 ,  G09F3/0297 ,  G09F2003/0247 ,  G09F2003/0277

Abstract: Disclosed is a structure for preventing counterfeit, falsification or reuse, including a metal layer, a photoconversion pattern layer including a plurality of photoconverting nanoparticles formed on the metal layer, a metal pattern layer placed on the metal layer and the photoconversion pattern layer, and an adhesive film placed on the metal pattern layer. Accordingly, the structure for preventing counterfeit, falsification or reuse according to the present disclosure allows a pattern indicating a genuine product to be easily identified with an eye through infrared light irradiation, and is fundamentally impossible to re-assemble after deformation of the structure caused by disassembly of a packaging container, thereby preventing counterfeit, falsification or reuse.

公开(公告)号：US20190187368A1

公开(公告)日：2019-06-20

申请号：US16216250

申请日：2018-12-11

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Seok Joon KWON ,  Hyoung Uk KIM ,  IL KI HAN ,  KWAN IL LEE ,  Seonju YEO

IPC: G02B6/10 ,  G03F7/16 ,  G03F7/20 ,  G03F7/32 ,  G03F7/40

CPC classification number: G02B6/102 ,  G03F7/162 ,  G03F7/168 ,  G03F7/2002 ,  G03F7/32 ,  G03F7/322 ,  G03F7/40

Abstract: In a method for fabricating a broadband near infrared plasmonic waveguide, the method includes forming a first pattern on a substrate. A metal thin film is evaporated on the substrate on which the first pattern is formed. The first pattern is removed from the substrate on which the metal thin film is evaporated, to remain a second pattern on the substrate on which the metal thin film is evaporated. The substrate on which the second pattern is formed is heated, to induce dewetting, so that metal nano particles are formed on the substrate.