Seoul, South Korea

Ji Yoon Lee

This inventor holds 5 USPTO granted patents and 2 published patent applications, plus 3 CIPO patents and 6 EPO patents. Top assignee: Kolon Industries, Inc.. Active years: 2025-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ji Yoon Lee. Retrieved from https://idiyas.com/inventor/ji-yoon-lee-76edbeaj

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

USPTO Granted Patents = 5 

% Patents Active = 100.0

 

 

Average Co-Inventor Count = 4.1

ph-index = 1

Forward Citations = 1(Granted Patents)


Company Filing History:


Years Active: 2025-2026

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5 patents (USPTO):Explore Patents

Title: Ji Yoon Lee - Innovator in Fuel Cell Technology

Introduction

Ji Yoon Lee is a prominent inventor based in Seoul, South Korea. He has made significant contributions to the field of fuel cell technology, particularly with his innovative designs that enhance the efficiency of fuel cells. His work is characterized by a focus on practical applications that address real-world energy challenges.

Latest Patents

Ji Yoon Lee holds a patent for a fuel cell membrane humidifier. This invention relates to a device that can actively control the flow rate of exhaust gas from a fuel cell stack based on the output conditions of the fuel cell. The humidifier includes a mid-case with an inlet for wetting gas, a cartridge containing hollow fiber membranes, a bypass space, and an active blocking member that adjusts the bypass space's opening according to the temperature of the wetting gas.

Career Highlights

Ji Yoon Lee is currently employed at Kolon Industries, Inc., where he continues to develop innovative solutions in fuel cell technology. His work has been instrumental in advancing the capabilities of fuel cells, making them more efficient and effective for various applications.

Collaborations

Throughout his career, Ji Yoon Lee has collaborated with talented individuals such as Young Seok Oh and Ah Reum Lee. These partnerships have fostered a creative environment that encourages innovation and the sharing of ideas.

Conclusion

Ji Yoon Lee is a key figure in the field of fuel cell technology, with a focus on practical innovations that improve energy efficiency. His contributions, particularly through his patented fuel cell membrane humidifier, highlight his commitment to advancing sustainable energy solutions.

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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