Daejeon, South Korea

Chang Jin Oh

This inventor holds 1 USPTO granted patent and 1 EPO patent. Top assignee: Korea Minting, Security Printing Id Card Operating Corp. Active years: 2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Chang Jin Oh. Retrieved from https://idiyas.com/inventor/chang-jin-oh-23avoc8y

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

% Patents Active = 100.0

 

Average Co-Inventor Count = 5.0

ph-index = 1


Company Filing History:


Years Active: 2022

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1 patent (USPTO):Explore Patents

Title: Chang Jin Oh: Innovator in Anti-Counterfeiting Technology

Introduction

Chang Jin Oh is a notable inventor based in Daejeon, South Korea. He has made significant contributions to the field of anti-counterfeiting technology. His innovative approach has led to the development of a unique printed material designed to combat counterfeiting.

Latest Patents

Chang Jin Oh holds a patent for an anti-counterfeiting printed material and its manufacturing method. This patent involves a background part that analyzes the distribution of Cyan Magenta Yellow Black (C/M/Y/K) after performing the first color separation of an original image. The original image is printed as C/M/Y/K lines, each having a preset included angle according to the distribution. Additionally, a latent image part is formed in a first region of the background part, printed with a different ratio of C/M/Y/K lines compared to the background part.

Career Highlights

Chang Jin Oh is currently employed at Korea Minting, Security Printing and ID Card Operating Corporation. His work focuses on enhancing security features in printed materials, which is crucial in the fight against counterfeiting. His innovative solutions have positioned him as a key player in this industry.

Collaborations

Chang Jin Oh collaborates with talented individuals such as Jong Gap Jeong and Gwang Hui Hong. Their combined expertise contributes to the advancement of security printing technologies.

Conclusion

Chang Jin Oh's contributions to anti-counterfeiting technology highlight his innovative spirit and dedication to enhancing security in printed materials. His work continues to influence the industry positively.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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