Gwangju, South Korea

Yu-Mi Chang

This inventor holds 6 USPTO granted patents and 3 published patent applications and 1 EPO patent. Top assignee: Sk Chemicals Co., Ltd.. Active years: 2014-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yu-Mi Chang. Retrieved from https://idiyas.com/inventor/yu-mi-chang-ylinny2j

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

Calculating rank
USPTO Granted Patents = 6 

% Patents Active = 16.7

 

Average Co-Inventor Count = 4.0

ph-index = 1

Forward Citations = 3(Granted Patents)


Location History:

  • Gyeonggi-do, KR (2014)
  • Gwangju-Si, KR (2015 - 2018)

Company Filing History:


Years Active: 2014-2025

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6 patents (USPTO):Explore Patents

Title: Innovations of Yu-Mi Chang

Introduction

Yu-Mi Chang is a prominent inventor based in Gwangju-si, South Korea. He has made significant contributions to the field of chemistry, particularly in the development of environmentally friendly processes and materials. With a total of 6 patents to his name, Chang's work reflects a commitment to innovation and sustainability.

Latest Patents

One of Yu-Mi Chang's latest patents is a method for preparing terephthalic acid, which involves hydrolyzing a compound derived from waste polyester. This method not only provides a way to produce terephthalic acid in an environmentally friendly manner but also ensures high purity of the final product. Another notable patent is for a compound used in organic electroluminescent devices. This compound boasts high thermal stability and efficiency, enhancing the performance of devices that utilize it as a hole transport layer material.

Career Highlights

Yu-Mi Chang is currently associated with Sk Chemicals Co., Ltd., where he continues to push the boundaries of innovation in chemical processes and materials. His work has garnered attention for its practical applications and potential impact on the industry.

Collaborations

Chang has collaborated with notable colleagues, including Ju-Sik Kang and Jeong-Ho Park, who contribute to the dynamic research environment in which he works. These collaborations have fostered a culture of innovation and creativity.

Conclusion

Yu-Mi Chang's contributions to the field of chemistry through his patents and innovative methods highlight his role as a leading inventor. His work not only advances technology but also emphasizes the importance of sustainability in modern inventions.

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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