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For the Inventor, By the Inventor

Yamanashi, Japan

SeungJun Lee

This inventor holds 12 USPTO granted patents and 3 published patent applications. Top assignee: Fanuc Corporation. Active years: 2014-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: SeungJun Lee. Retrieved from https://idiyas.com/inventor/seungjun-lee-8egdm5y2

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

USPTO Granted Patents = 12 

% Patents Active = 91.7

Average Co-Inventor Count = 1.6

ph-index = 1

Forward Citations = 10(Granted Patents)


Location History:

  • Yamanashi-ken, JP (2022)
  • Yamanashi, JP (2014 - 2023)

Company Filing History:

goldMedal12 out of 6,281 
 
Fanuc Corporation
 patents

Years Active: 2014-2023

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12 patents (USPTO):Explore Patents
1. 11689086 - Device for manufacturing rotor core and method for manufacturing rotor core (2023-06-27),
2. 11532960 - Device for manufacturing rotor core, method for manufacturing rotor core, and rotor structure (2022-12-20),
3. 11515770 - Device for manufacturing rotor core and method for manufacturing rotor core (2022-11-29),
4. 11509184 - Electric motor with housing fixed to end face of stator core (2022-11-22),
5. 11274728 - Mounting structure and cooling fan (2022-03-15),
6. 11088596 - Motor cooling fan unit, motor, and exhaust unit (2021-08-10),
7. 10247549 - Shaft accuracy measuring device for measuring accuracy of output shaft of motor (2019-04-02),
8. 10132710 - Shaft precision automatic measuring device for motor (2018-11-20),
9. 9531241 - Cooling device for electric motor and electric motor (2016-12-27),
10. 9136789 - Synchronous motor control apparatus (2015-09-15),
11. 9000694 - Synchronous motor control apparatus (2015-04-07),
12. 8723469 - Motor winding overheat prevention apparatus and motor control apparatus (2014-05-13),

Title: The Innovative Contributions of SeungJun Lee in Rotor Core Manufacturing

Introduction

SeungJun Lee, an accomplished inventor based in Yamanashi, Japan, has made significant strides in the field of rotor core manufacturing. With an impressive portfolio of 12 patents, his work focuses on enhancing the efficiency and reliability of rotor core production.

Latest Patents

Among his latest innovations are two key patents: the "Device for Manufacturing Rotor Core and Method for Manufacturing Rotor Core" and another for a rotor structure that minimizes magnetic flux leakage. The first patent introduces a manufacturing device designed to prevent damage to magnets during the resin injection process. This device features a first mold that securely holds a laminated iron core, a second mold that clamps and seals the components together, and a resin injection unit to deliver the resin material efficiently. The second patent further refines the manufacturing technique by incorporating a protrusion that aligns and holds the magnet, ensuring optimal performance in the assembly process.

Career Highlights

SeungJun Lee is associated with Fanuc Corporation, a leader in automation technology. His work there revolves around advancing manufacturing methods and innovating processes that contribute to the company's reputation in robotics and CNC machinery.

Collaborations

Throughout his career, SeungJun has collaborated with fellow innovators such as Hidetoshi Uematsu and Makoto Funakubo. Together, they have contributed to the development of cutting-edge manufacturing technologies that enhance the production of rotor cores, reflecting a collaborative spirit at Fanuc Corporation.

Conclusion

SeungJun Lee’s contributions to rotor core manufacturing not only showcase his inventive prowess but also significantly influence the industry’s direction. With a strong patent portfolio and fruitful collaborations, he continues to push the boundaries of innovation in manufacturing 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]
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