Yongin, South Korea

Bum Jae Lee

This inventor holds 10 USPTO granted patents and 1 published patent application. Top assignees: Hyundai Motor Company, Hyundai Wia Corporation, Kia Motors Corporation. Active years: 2006-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Bum Jae Lee. Retrieved from https://idiyas.com/inventor/bum-jae-lee-hff2bftx

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

USPTO Granted Patents = 10 

% Patents Active = 100.0

Average Co-Inventor Count = 3.7

ph-index = 1

Forward Citations = 2(Granted Patents)


Location History:

  • Ulsan, KR (2006)
  • Yongin-si, KR (2021 - 2023)
  • Gyeonggi-do, KR (2023)
  • Whasung-Si, KR (2023)

Company Filing History:


Years Active: 2006-2025

Loading Chart...
10 patents (USPTO):Explore Patents

Title: Bum Jae Lee: Innovator in Constant Velocity Joint Technology

Introduction

Bum Jae Lee is a prominent inventor based in Yongin-si, South Korea. With a remarkable portfolio of seven patents, Lee has made significant contributions to the automotive industry, particularly in the field of constant velocity joints.

Latest Patents

Among his notable inventions, Lee has developed a groundbreaking constant velocity joint for vehicles. This innovative joint features an axle housing that is fixed to a knuckle via a hub bearing. The joint assembly transmits power from a shaft to the axle housing through multiple joint balls. A key aspect of this design is the extension portion of the axle housing, which provides a pressing force to the inner race of the hub bearing in an axial direction. Additionally, the design incorporates a boot surrounding the outer side of the extension portion, ensuring a restraining force is maintained between the extension portion and the boot.

Another significant innovation from Lee is the hub built-in type constant velocity apparatus. This device includes a hub housing with a constant velocity joint coupled inwardly, alongside an internal race and a pre-load ring. The design features an upwardly rolled end portion of the hub housing that forms a coupling with the pre-load spring, applying necessary pressure to both the pre-load ring and the internal race.

Career Highlights

Bum Jae Lee has worked with reputable organizations, including Hyundai Motor Company and Kia Motors Corporation. His work at these companies has facilitated advancements in automotive technology, particularly in enhancing vehicle reliability and performance.

Collaborations

Throughout his career, Lee has collaborated with talented engineers and inventors such as Chang Hee Jeong and Won Jun Choi. These partnerships have fostered innovative thinking and spurred the development of cutting-edge automotive solutions.

Conclusion

Bum Jae Lee's dedication to innovation in constant velocity joint technology marks him as a key figure in the automotive landscape. His inventive spirit and collaborative efforts continue to drive advancements that enhance vehicle efficiency and performance. Through his patents, Lee not only showcases his expertise but also contributes profoundly to the future of automotive technology.

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]
Loading…