Gyeonggi-do, South Korea

Chang Seok Ryu

This inventor holds 9 USPTO granted patents and 2 published patent applications. Top assignees: Hyundai Motor Company, Kia Motors Corporation. Active years: 2016-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Chang Seok Ryu. Retrieved from https://idiyas.com/inventor/chang-seok-ryu

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

Calculating rank
USPTO Granted Patents = 9 

% Patents Active = 100.0

Average Co-Inventor Count = 3.7

ph-index = 3

Forward Citations = 30(Granted Patents)


Location History:

  • Anyang-si, KR (2016)
  • Gyeonggi-do, KR (2016 - 2018)
  • Anyang-Gyeonggi-do, KR (2017 - 2018)

Company Filing History:


Years Active: 2016-2018

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9 patents (USPTO):Explore Patents

Title: Chang Seok Ryu: Innovator in Motor Control and Fuel Cell Technology

Introduction

Chang Seok Ryu is a prominent inventor based in Gyeonggi-do, South Korea. He has made significant contributions to the fields of motor control and fuel cell technology, holding a total of nine patents. His innovative approaches have paved the way for advancements in these critical areas.

Latest Patents

One of his latest patents is a method for controlling a motor. This method involves deriving a motor rotational speed estimate using a speed estimator model and a motor hall sensor frequency estimate based on the derived rotational speed. Additionally, a filter for noise detection is established based on these estimates, allowing for effective detection of hall sensor noise frequency. Another notable patent is an air supply control system for fuel cells. This system includes a turbocharger that pressurizes air discharged from a fuel cell and supplies it to the fuel cell's inlet. It also features valves to control the air supply and a controller that calculates the required air pressure for optimal fuel cell performance.

Career Highlights

Chang Seok Ryu has worked with leading automotive companies, including Hyundai Motor Company and Kia Motors Corporation. His experience in these organizations has allowed him to apply his innovative ideas in practical settings, contributing to the development of advanced automotive technologies.

Collaborations

He has collaborated with notable coworkers such as Dong Hun Lee and Sung Do Kim, further enhancing the impact of his work in the industry.

Conclusion

Chang Seok Ryu's contributions to motor control and fuel cell technology demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of engineering principles and a drive to improve technological 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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