Location History:
- Choongcheongnam-do, KR (2001)
- Gwangyang-si, KR (2021)
Company Filing History:
1 out of 582 
1 out of 832,680 Years Active: 2001-2021
Title: Yeon Sang Ahn: Innovator in Heat Treatment Processes
Introduction
Yeon Sang Ahn is a notable inventor based in Choongcheongnam-do, South Korea, recognized for his contributions to the field of materials science. With one patent to his name, his work specifically addresses the improvement of toughness in SA 508 Gr.3 steel through innovative heat treatment processes.
Latest Patents
Ahn's patent, titled "Intercritical Heat Treatment Process for Toughness Improvement of SA 508 GR.3 Steel," introduces a novel approach to manufacturing high toughness steels. This invention involves an intercritical heat treatment (IHT) step that is integrated between the quenching and tempering stages. The IHT is conducted at temperatures ranging from 680°C to 750°C, within the ferrite/austenite two-phase region, for durations of 1 to 8 hours. This method significantly enhances the room temperature impact energy and upper shelf energy of the treated steels while decreasing the ductile-to-brittle transition temperature.
Career Highlights
Throughout his career, Yeon Sang Ahn has focused on advancing heat treatment methodologies. His innovative approach not only improves the toughness of SA 508 Gr.3 steels but also modifies the tempering processes necessary after the intercritical heat treatment. By performing tempering at temperatures lower than 635°C, Ahn compensates for the strength reduction caused by the IHT, further increasing toughness.
Collaborations
Ahn has collaborated with notable colleagues Jun Wha Hong and Hong Deuk Kim, who contribute to his research and innovations in material treatments. This teamwork reflects a commitment to enhancing the properties of steel and ensuring better performance in various applications.
Conclusion
Yeon Sang Ahn's contributions to the development of heat treatment processes exemplify the critical role of inventors in advancing technology and materials science. His patent on the intercritical heat treatment process for SA 508 Gr.3 steel represents a significant innovation that improves both the toughness and durability of steel, illustrating the impact that well-thought-out inventions can have on industry practices.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.