Seong-Ung Koh

This inventor holds 6 USPTO granted patents and 4 published patent applications, plus 2 CIPO patents and 5 EPO patents. Top assignees: Posco, Posco Co., Ltd. Active years: 2016-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Seong-Ung Koh. Retrieved from https://idiyas.com/inventor/seong-ung-koh

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

USPTO Granted Patents = 6 (Patent Applications = 4)

% Patents Active = 100.0

CIPO Patents = 2

EPO Patents = 5 (Patent Applications = 7)

Average Co-Inventor Count = 2.8

ph-index = 1

Company Filing History:

Years Active: 2016-2025

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6 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12339251 - Steel plate surface material property testing device and steel plate surface material property testing method (2025-06-24),

2. 12037667 - High-strength steel having excellent resistance to sulfide stress cracking, and method for manufacturing same (2024-07-16),

3. 11746401 - Steel sheet having excellent hydrogen induced cracking resistance and longitudinal strength uniformity, and manufacturing method therefor (2023-09-05),

4. 11649519 - Sour-resistant heavy-wall steel plate having excellent low-temperature toughness and post-heat treatment characteristics and method for manufacturing same (2023-05-16),

5. 10801092 - Thick steel plate having excellent low-temperature toughness and hydrogen-induced cracking resistance, and method for manufacturing same (2020-10-13),

6. 9238849 - Steel sheet for an oil sand slurry pipe having excellent abrasion resistance, corrosion resistance, and low-temperature toughness and method for manufacturing same (2016-01-19),

Title: Seong-Ung Koh: Innovator in Steel Material Testing

Introduction

Seong-Ung Koh is a prominent inventor based in Pohang-si, South Korea. He has made significant contributions to the field of material testing, particularly in the steel industry. With a total of 6 patents to his name, Koh's work focuses on enhancing the properties and testing methods of steel materials.

Latest Patents

Koh's latest patents include a "Steel plate surface material property testing device" and a "Steel plate surface material property testing method." The testing device determines the material properties of a steel plate's surface by generating eddy currents within the plate. This innovative device comprises an eddy current tester, a frame for support, and a material property determination unit that analyzes signals obtained through a sensor. Additionally, he has developed a high-strength steel that exhibits excellent resistance to sulfide stress cracking, suitable for use as a line pipe or sour-resistant material.

Career Highlights

Throughout his career, Seong-Ung Koh has worked with notable companies such as Posco and Posco Co., Ltd. His experience in these organizations has allowed him to apply his innovative ideas in practical settings, contributing to advancements in steel technology.

Collaborations

Koh has collaborated with esteemed colleagues, including Yoen-Jung Park and Moo-Jong Bae. Their joint efforts have furthered research and development in the field of steel materials.

Conclusion

Seong-Ung Koh's contributions to steel material testing and development have established him as a key figure in the industry. His innovative patents and collaborations reflect his commitment to advancing material science.

Profile summary based on public USPTO records.