Daejeon, South Korea

Dong Chang Choi

This inventor holds 4 USPTO granted patents and 1 published patent application. Top assignees: Lg Chem, Ltd, Lf Chem, Ltd.. Active years: 2009-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Dong Chang Choi. Retrieved from https://idiyas.com/inventor/dong-chang-choi

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 = 7.8

ph-index = 1

Forward Citations = 6(Granted Patents)


Company Filing History:


Years Active: 2009-2020

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4 patents (USPTO):Explore Patents

Title: The Innovations of Dong Chang Choi

Introduction

Dong Chang Choi is a notable inventor based in Daejeon, South Korea. He has made significant contributions to the field of photomasks and photosensitive resin compositions. With a total of 4 patents to his name, his work has had a considerable impact on the technology used in liquid crystal displays.

Latest Patents

One of his latest patents is titled "Photomask and method for manufacturing column spacer for color filter using the same." This invention relates to a photomask that features a central region with a first transmittance, surrounded by a perimeter region with a lower transmittance. This innovative design enhances the manufacturing process of column spacers for color filters. Another significant patent is for a "Photosensitive resin composition for black matrix." This composition includes a specific blend of solvents that allows for the creation of a uniform thin film with excellent light shielding properties, making it particularly useful for liquid crystal displays.

Career Highlights

Throughout his career, Dong Chang Choi has worked with prominent companies such as LG Chem, Ltd and LF Chem, Ltd. His experience in these organizations has contributed to his expertise in the field of materials science and engineering.

Collaborations

He has collaborated with notable coworkers, including Geun Young Cha and Sung Hyun Kim. Their joint efforts have likely fostered innovation and advancements in their respective projects.

Conclusion

Dong Chang Choi's contributions to the field of photomasks and photosensitive materials demonstrate his innovative spirit and dedication to advancing technology. His patents reflect a commitment to improving the efficiency and quality of liquid crystal display manufacturing.

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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