This inventor holds 4 USPTO granted patents and 5 published patent applications and 6 EPO patents. Top assignees: Posco Co., Ltd, Posco. Active years: 2021-2025.
Company Filing History:
Years Active: 2021-2025
Title: The Innovations of Il-Cheol Yi in Structural Steel
Introduction
Il-Cheol Yi is a renowned inventor based in Gwangyang-si, South Korea, with a remarkable portfolio of four patents. His contributions primarily focus on advancements in structural steel, significantly enhancing its performance and applications in various industries.
Latest Patents
Il-Cheol Yi's latest patents are a testament to his innovative approach to materials science. The first patent is for a "High-strength structural steel having excellent cold bendability" which features a composition of weight percentages: 0.02-0.1% of carbon (C), 0.01-0.6% of silicon (Si), 1.7-2.5% of manganese (Mn), 0.005-0.5% of aluminum (Al), 0.02% or less of phosphorus (P), 0.01% or less of sulfur (S), 0.0015-0.015% of nitrogen (N), with the remainder being iron (Fe) and unavoidable impurities. This innovation divides microstructurally into an outer surface layer and an inner central part, enhancing its mechanical properties.
His second patent includes a "High-strength structural steel material having excellent fatigue crack propagation inhibitory characteristics." This material consists of 0.02-0.12% of C, 1.7-2.5% of Mn, 0.01-0.8% of Si, and other elements. This invention is characterized by a unique microstructure that optimally balances strength and durability, making it a significant development in the field of structural materials.
Career Highlights
Il-Cheol Yi has had a significant impact during his tenure at esteemed companies such as POSCO Co., Ltd. and POSCO. His work has not only contributed to his patents but has also advanced the understanding and application of structural steel in the industry.
Collaborations
Throughout his career, Il-Cheol Yi has collaborated with esteemed colleagues, including Sang-Deok Kang and Jae-Young Cho. These partnerships have fostered a creative environment for innovation and technical advancement in materials science.
Conclusion
Il-Cheol Yi's contributions to the field of structural steel through his patents demonstrate his dedication to enhancing material performance. His work continues to influence industry practices and reflects the vital role of innovation in engineering and materials science.