Gyeonggi-do, South Korea

Ji-Hoon Lee

This inventor holds 3 USPTO granted patents and 1 EPO patent. Top assignee: Dongwoo Fine-Chem. Active years: 2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ji-Hoon Lee. Retrieved from https://idiyas.com/inventor/ji-hoon-lee-0m839jon

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


% Patents Active = 66.7

 

Average Co-Inventor Count = 3.0

ph-index = 1


Company Filing History:


Years Active: 2026

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3 patents (USPTO):Explore Patents

Title: Ji-Hoon Lee: Inventor in Lithium Battery Recycling and Materials

Introduction

Ji-Hoon Lee is an inventor based in Gyeonggi-do, South Korea, whose patent work focuses on lithium recovery and materials for lithium secondary batteries. His listed portfolio includes 3 patents, and he is associated with Dongwoo Fine-Chem.

Latest Patents

Lee’s recent patent work addresses processes for recovering valuable materials from spent batteries and preparing battery components.

“Method for Producing Lithium Hydroxide” describes a method for producing high-purity lithium hydroxide from lithium-containing waste liquid generated by spent lithium secondary batteries.

“Methods for Preparing Cathode Active Material Precursor Material and Cathode Active Material for Lithium Secondary Battery, and Cathode Active Material for Lithium Secondary Battery Prepared According to Same” covers preparing a cathode active material precursor using waste from high-nickel-content lithium secondary batteries. It also describes producing cathode active material using that precursor and the resulting material.

Career Highlights

Lee’s listed inventions connect battery recycling with the production of materials for new lithium secondary batteries. His work includes both lithium hydroxide recovery and the preparation of cathode active material precursors and cathode active materials.

Collaborations

Lee is associated with Dongwoo Fine-Chem. His listed coworkers include Myung-Jin Kim and Bong-Jin Choi.

Conclusion

Ji-Hoon Lee’s patent portfolio reflects a focus on recovering lithium and developing battery materials, linking spent-battery resources with the production of components for lithium secondary batteries.

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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