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For the Inventor, By the Inventor

Yongin, South Korea

Hyunjei Chung

This inventor holds 5 USPTO granted patents and 10 published patent applications. Top assignees: Samsung Sdi., Ltd., Samsung Sdi Co., Inc.. Active years: 2022-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hyunjei Chung. Retrieved from https://idiyas.com/inventor/hyunjei-chung

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 = 60.0

Average Co-Inventor Count = 4.2

ph-index = 1


Company Filing History:

goldMedal3 out of 275 
 
Samsung Sdi., Ltd.
 patents
silverMedal2 out of 7,663 
 
Samsung Sdi Co., Inc.
 patents

Years Active: 2022-2026

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5 patents (USPTO):Explore Patents
1. 12763320 - Composite positive active material for lithium secondary battery, method of preparing composite positive active material, and lithium secondary battery including composite positive active material (2026-10-13),
2. 12719051 - Composite positive electrode active material for lithium secondary battery, method of preparing same, and lithium secondary battery containing positive electrode including same (2026-08-25),
3. 12633530 - Positive active material for lithium secondary battery, method of preparing same, and lithium secondary battery including positive electrode including the positive active material (2026-05-19),
4. 11949098 - Positive active material for rechargeable lithium battery and rechargeable lithium battery including same (2024-04-02),
5. 11515524 - Positive active material for rechargeable lithium battery and rechargeable lithium battery including same (2022-11-29),

Title: Innovations of Hyunjei Chung in Lithium Battery Technology

Introduction

Hyunjei Chung is a notable inventor based in Yongin-si, South Korea. He has made significant contributions to the field of rechargeable lithium batteries, holding two patents that enhance battery performance and efficiency. His work is particularly relevant in today's technology-driven world, where energy storage solutions are crucial.

Latest Patents

Hyunjei Chung's latest patents focus on a positive active material for rechargeable lithium batteries. This innovative material includes a core with a layered structure and a surface layer that contains an oxide. The oxide comprises at least one first element and one second element, selected from a group that includes Ti, Zr, F, Mg, Al, and P. The specific amounts of these elements are carefully calibrated to optimize the performance of the positive active material. This advancement is significant as it contributes to the development of more efficient and durable rechargeable lithium batteries.

Career Highlights

Hyunjei Chung is currently employed at Samsung SDI Co., Inc., a leading company in the battery manufacturing industry. His role at Samsung SDI allows him to work on cutting-edge technologies that are shaping the future of energy storage. His expertise in battery materials and design has positioned him as a key player in the field.

Collaborations

Hyunjei Chung collaborates with talented individuals such as Yongmok Cho and Young-Hun Lee. These partnerships foster innovation and drive advancements in battery technology, contributing to the overall success of their projects.

Conclusion

Hyunjei Chung's contributions to lithium battery technology through his patents and work at Samsung SDI highlight his importance in the field of energy storage. His innovative approaches are paving the way for more efficient and sustainable battery 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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