Daejeon, South Korea

Chang Song Lee

This inventor holds 3 USPTO granted patents and 2 published patent applications and 3 EPO patents. Top assignee: Lg Chem, Ltd. Active years: 2014-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Chang Song Lee. Retrieved from https://idiyas.com/inventor/chang-song-lee

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

USPTO Granted Patents = 3 

% Patents Active = 66.7

 

Average Co-Inventor Count = 5.0

ph-index = 1

Forward Citations = 1(Granted Patents)


Company Filing History:


Years Active: 2014-2026

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3 patents (USPTO):Explore Patents

Title: The Innovative Mind of Chang Song Lee: A Spotlight on His Inventions

Introduction

Chang Song Lee, an accomplished inventor hailing from Daejeon, South Korea, has made significant contributions to the field of polarizing film technology. With two patents to his name, Lee's innovations reflect a deep understanding of material science and engineering. His latest inventions focus on the intricacies of controlling the color and production processes of polarizing films, a vital component in many optical devices.

Latest Patents

Lee's most recent patents include:

1. **Apparatus for Controlling Color of Polarizing Film and Method of Controlling the Same**

This invention describes a sophisticated apparatus designed for controlling the color of polarizing films. The apparatus comprises several elements: a dyeing bath where PVA films are treated with aqueous iodine and potassium solutions, a complementary bath for further dyeing, a device oven for drying the film, a 4-stage oven for additional drying, and a central controller that predicts the color value of the polarizing film, ensuring precise color control.

2. **Device for Producing Polarizing Film and Method of Producing the Same**

The second patent outlines a device for producing polarizing films with enhanced properties through a continuous dyeing and orienting process. It features multiple baths and ovens equipped with thermometers and a densitometer to maintain optimal conditions. This device allows for the meticulous control of temperatures and dye concentration, thereby facilitating the production of high-quality polarizing films.

Career Highlights

Chang Song Lee is currently employed by LG Chem, Ltd., a leading global chemical company. His work at LG Chem reflects a commitment to innovation and excellence in the realm of chemical engineering and materials science. Lee's extensive knowledge and focus on polarizing film technology have positioned him as a pivotal figure in his field.

Collaborations

Throughout his career, Lee has collaborated with talented colleagues such as Ho Kyung Lee and Eung Jin Jang. These partnerships have fostered a creative and dynamic environment conducive to innovation, resulting in groundbreaking advancements in polarizing film technology.

Conclusion

Chang Song Lee stands out as a notable inventor whose contributions to polarizing film technology have paved the way for future innovations. With his meticulous approach to invention and dedication to his craft, Lee continues to influence the field significantly. As he advances his work at LG Chem and beyond, the impact of his inventions will undoubtedly be felt in various sectors that utilize polarizing films.

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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