This inventor holds 1 USPTO granted patent and 2 published patent applications, plus 1 CIPO patent. Top assignees: Xerabrid Co., Ltd., Yonsei University. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
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1 out of 1,498 
Years Active: 2026
Title: Ji Sun Lee: Inventor of a Water-Based Composite Separator for Lithium Batteries.
Introduction
Ji Sun Lee is an inventor based in Gyeonggi-do, South Korea. His patent work includes a water-based polyimide-powder coating composition and a method for manufacturing a composite separator for lithium secondary batteries.
Latest Patents
Lee is associated with 1 patent: “Water Based Polyimide-Powder Coating Composition and Method for Manufacturing Composite Separator for Lithium Secondary Battery Using Same.” The invention describes manufacturing a polyimide-powder composite separator using water. By avoiding organic solvents throughout the process, the method offers environmental benefits. It also avoids the need for high-temperature, high-pressure conditions, with potential advantages in manufacturing time, cost, and process simplicity.
Career Highlights
Lee’s listed professional affiliations include Xerabrid Co., Ltd. and Yonsei University.
Collaborations
His named collaborators include Seung Won Jin and Seung Hyun Lee.
Conclusion
Ji Sun Lee’s patent focuses on a water-based approach to producing composite separators for lithium secondary batteries, emphasizing solvent reduction and a simpler manufacturing process.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile