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Won Gyun Choe
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Daejeon, KR
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Patents Grants
last 30 patents
Information
Patent Grant
Light-colored magnetic particles having improved durability and che...
Patent number
11,694,827
Issue date
Jul 4, 2023
Korea Minting, Security Printing & ID Card Operating Corp.
Hong Keon Kim
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Security device using light reflection property
Patent number
11,590,792
Issue date
Feb 28, 2023
Korea Minting, Security Printing & ID Card Operating Corp.
Won Gyun Choe
B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information
Patent Grant
Photonic crystal film, method for manufacturing same, and anti-forg...
Patent number
11,541,680
Issue date
Jan 3, 2023
Korea Minting, Security Printing & ID Card Operating Corp.
Shin-hyun Kim
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Magnetic particle having high-reflective protective membrane and me...
Patent number
9,721,705
Issue date
Aug 1, 2017
Korea Minting, Security Printing & ID Card Operating Corp.
Won Gyun Choe
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Electromagnetic bandgap pattern structure, method of manufacturing...
Patent number
8,289,109
Issue date
Oct 16, 2012
Korea Minting, Security Printing & ID Card Operating Corp.
Jong Won Yu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Gamma ray-sensitive phthalocyanine compound of poly cross-linking t...
Patent number
7,981,208
Issue date
Jul 19, 2011
Nanocms Co., Ltd.
Shi Surk Kim
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
ALNICO-BASED HARD MAGNETIC PARTICLE AND METHOD FOR MANUFACTURING TH...
Publication number
20220172867
Publication date
Jun 2, 2022
KOREA MINTING, SECURITY PRINTING & IDCARD OPERATING CORP.
Soo Dong KIM
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
MAGNETIC PARTICLE FOR SECURITY INK AND SECURITY INK COMPRISING THE...
Publication number
20220153055
Publication date
May 19, 2022
KOREA MINTING, SECURITY PRINTING & IDCARD OPERATING CORP.
Soo Dong KIM
B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information
Patent Application
SECURITY DEVICE USING LIGHT REFLECTION PROPERTY
Publication number
20210354496
Publication date
Nov 18, 2021
Won Gyun CHOE
B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information
Patent Application
PHOTONIC CRYSTAL FILM, METHOD FOR MANUFACTURING SAME, AND ANTI-FORG...
Publication number
20210107311
Publication date
Apr 15, 2021
Korea Minting, Security Printing & ID Card Operating Corp.
Shin-hyun Kim
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Alnico-Based Magnetic Particles for Security Ink
Publication number
20200391285
Publication date
Dec 17, 2020
Korea Minting, Security Printing & ID Card Operating Corp.
Won Gyun Choe
B22 - CASTING POWDER METALLURGY
Information
Patent Application
Light-Colored Magnetic Particles Having Improved Durability and Che...
Publication number
20200357544
Publication date
Nov 12, 2020
Korea Minting, Security Printing & ID Card Operating Corp.
Hong Keon Kim
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
MAGNETIC PARTICLE HAVING A HIGHLY REFLECTIVE PROTECTIVE FILM, AND M...
Publication number
20150235745
Publication date
Aug 20, 2015
KOREA MINTING, SECURITY PRINTING ID CARD OPERATING CORP.
Won Gyun Choe
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
ELECTROMAGNETIC BANDGAP PATTERN STRUCTURE, METHOD OF MANUFACTURING...
Publication number
20100295633
Publication date
Nov 25, 2010
Jong Won YU
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Gamma Ray-sensitive Phthalocyanine Compound of Poly Cross-linking T...
Publication number
20090326207
Publication date
Dec 31, 2009
CMS Technology Inc.
Si-Seok Kim
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Functional Fiber for Preventing Forgery
Publication number
20090311527
Publication date
Dec 17, 2009
Korea Minting and Security Printing Corp.
Ku Won Seo
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING