Hak-Cheol Lee

USPTO Granted Patents = 12 (Patent Applications = 10)

CIPO Patents = 1

EPO Patents = 15 (Patent Applications = 10)

Average Co-Inventor Count = 1.6

ph-index = 1

Company Filing History:

Exxonmobil Research and Engineering Company

patents

where one patent can have more than one assignee

Years Active: 2018-2025

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12 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12480171 - Ultra-thick structural steel having excellent brittle crack initiation resistance, and manufacturing method therefor (2025-11-25),

2. 12338515 - Ultra-thick steel excellent in brittle crack arrestability and manufacturing method therefor (2025-06-24),

3. 11649518 - Ultra-thick steel material having excellent surface part NRL-DWT properties and method for manufacturing same (2023-05-16),

4. 11634784 - Ultra-thick steel material having excellent surface part NRL-DWT properties and method for manufacturing same (2023-04-25),

5. 11608549 - Cryogenic steel plate and method for manufacturing same (2023-03-21),

6. 11591679 - Low-temperature steel material having excellent toughness in welding portion thereof and manufacturing method therefor (2023-02-28),

7. 11434557 - Low-temperature steel plate having excellent impact toughness, and method for manufacturing same (2022-09-06),

8. 11155905 - Enhanced wear resistant steel and methods of making the same (2021-10-26),

9. 10883159 - High-strength steel having superior brittle crack arrestability, and production method therefor (2021-01-05),

10. 10822671 - High-strength steel having superior brittle crack arrestability, and production method therefor (2020-11-03),

11. 10301707 - Steel having excellent weldability and impact toughness of welding zone (2019-05-28),

12. 10041156 - High strength austenitic-based steel with remarkable toughness of welding heat-affected zone and preparation method therefor (2018-08-07),

Title: The Innovations of Hak-Cheol Lee

Introduction

Hak-Cheol Lee is a prominent inventor based in Pohang-si, South Korea. He has made significant contributions to the field of materials science, particularly in the development of ultra-thick steel. With a total of 11 patents to his name, Lee's work has had a substantial impact on the industry.

Latest Patents

Among his latest patents is an invention titled "Ultra-thick steel excellent in brittle crack arrestability and manufacturing method therefor." This patent describes an ultra-thick steel that comprises specific weight percentages of various elements, including carbon, manganese, nickel, niobium, titanium, copper, phosphorus, and sulfur. The steel is designed to have crystal grains with a high angle grain boundary, which enhances its brittle crack arrestability. Another notable patent is for "Ultra-thick steel material having excellent surface part NRL-DWT properties and method for manufacturing same." This invention details a high-strength ultra-thick steel material with a unique composition and microstructure, aimed at improving its mechanical properties.

Career Highlights

Hak-Cheol Lee 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 manufacturing.

Collaborations

Lee has collaborated with esteemed colleagues, including Sung-Ho Jang and In-Shik Suh. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and expertise in the field of materials science.

Conclusion

Hak-Cheol Lee's contributions to the development of ultra-thick steel and his numerous patents highlight his role as a leading inventor in the materials science industry. His work continues to influence advancements in steel technology and manufacturing processes.

This text is generated by artificial intelligence and may not be accurate.