Daejeon, South Korea

Seok Jin Kim

This inventor holds 18 USPTO granted patents and 9 published patent applications and 14 EPO patents, primarily in Battery Inspection Technology. Top assignees: Lg Energy Solution, Ltd., Lg Chem, Ltd, Cheil Industries Inc.. Active years: 2002-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Seok Jin Kim. Retrieved from https://idiyas.com/inventor/seok-jin-kim

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

USPTO Granted Patents = 18 

% Patents Active = 88.9

 

Average Co-Inventor Count = 3.8

ph-index = 4

Forward Citations = 38(Granted Patents)


Location History:

  • Taejon-shi, KR (2002)
  • Seoul, KR (2002 - 2013)
  • Bucheon-si, KR (2021)
  • Daejeon, KR (2019 - 2024)

Company Filing History:


Years Active: 2002-2026

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Areas of Expertise:
Welding Inspection
Eddy Current Sensor
Crack Detection
Battery Manufacturing
Electrode Assembly
Ultrasonic Waves
Polyolefin Composition
Metal Oxide Slurry
Chemical Mechanical Polishing
Quality Inspection
Secondary Battery
Inspection Device
18 patents (USPTO):Explore Patents

Title: Innovations of Inventor Seok Jin Kim in Welding Technology

Introduction

Seok Jin Kim is a notable inventor based in Daejeon, South Korea. He has been awarded 11 patents, showcasing his expertise and contributions to the field of welding technology, particularly in applications relevant to lithium secondary batteries.

Latest Patents

Among his latest innovations are two prominent patents: the Welding Quality Inspection Device and the Welding Failure Inspection Method.

The Welding Quality Inspection Device provides an apparatus that inspects the welding state in welded portions of electronic or mechanical couplings within lithium secondary batteries. This apparatus features a measuring unit that obtains data to derive the resistance value of the welded portion. Additionally, a controller communicates with the measuring unit to determine this resistance value and assess the quality of the welding by comparing it against a threshold resistance value. The unique design allows the resistance measuring probe to contact both ends of the welded area for accurate results.

In tandem, the Welding Failure Inspection Method enables efficient assessment of welding defects. This method involves a multi-step process beginning with setting a threshold resistance by measuring the resistance of welded samples. Subsequent steps include measuring the resistance of the welded portion in question and determining whether it qualifies as weak welding based on the previously established threshold. This innovative approach employs a micro-resistance measuring instrument with high resolution, offering exceptional detection capabilities for welding defects.

Career Highlights

Seok Jin Kim’s career includes significant roles at leading companies, including LG Energy Solution and LG Chem. His work has been pivotal in advancing welding technologies that are essential for modern battery manufacturing processes and applications.

Collaborations

Throughout his career, Seok Jin Kim has collaborated with esteemed colleagues such as Sang Hyun Koo and Cha Hun Ku, whose contributions have bolstered the development and implementation of his innovative patents.

Conclusion

Seok Jin Kim’s contributions to welding technology demonstrate his commitment to enhancing industrial processes and safety in battery production. His patented inventions continue to influence the industry, reflecting a combination of technical proficiency and innovative thinking.

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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