Daejeon, South Korea

Yun Ju Chang

This inventor holds 4 USPTO granted patents and 2 published patent applications and 4 EPO patents. Top assignee: Samyang Corporation. Active years: 2013-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yun Ju Chang. Retrieved from https://idiyas.com/inventor/yun-ju-chang

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

USPTO Granted Patents = 4 

% Patents Active = 100.0

 

Average Co-Inventor Count = 5.6

ph-index = 1

Forward Citations = 24(Granted Patents)


Company Filing History:


Years Active: 2013-2025

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4 patents (USPTO):Explore Patents

Title: Innovations of Yun Ju Chang

Introduction

Yun Ju Chang is a notable inventor based in Daejeon, South Korea. He has made significant contributions to the field of materials science, particularly in the development of advanced polymers. With a total of four patents to his name, Chang's work focuses on enhancing the properties and applications of copolymers and elastomers.

Latest Patents

Chang's latest patents include a polysiloxane-polycarbonate copolymer that utilizes a hydroxyl-terminated polysiloxane mixture. This invention demonstrates improved transmittance and low-temperature impact strength, making it economically advantageous due to enhanced production yields. Another significant patent is for a thermoplastic polyether ester elastomer that incorporates an anhydrosugar alcohol derivative. This elastomer addresses environmental concerns by utilizing biomass-derived materials, allowing for better control over physical characteristics and melting points during the molding process.

Career Highlights

Yun Ju Chang is currently employed at Samyang Corporation, where he continues to innovate in the field of polymer science. His work has not only advanced the understanding of copolymers but has also contributed to the development of more sustainable materials.

Collaborations

Chang collaborates with talented colleagues, including Kyung Moo Shin and Mi Ran Kim, who contribute to the research and development efforts at Samyang Corporation.

Conclusion

Yun Ju Chang's innovative work in polymer science exemplifies the importance of research and development in creating advanced materials. His contributions are paving the way for more efficient and environmentally friendly solutions in the industry.

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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