Location History:
- Gwangyang, KR (2013)
- Gwangyang-si, KR (2015 - 2019)
Company Filing History:
Years Active: 2013-2025
Title: Chang-Woon Jee: Innovator in Steel Technology
Introduction
Chang-Woon Jee is a prominent inventor based in Gwangyang-si, South Korea. He has made significant contributions to the field of steel technology, holding a total of seven patents. His innovative work focuses on enhancing the properties and applications of galvanized steel sheets.
Latest Patents
One of Chang-Woon Jee's latest patents is for a welded member of galvanized steel sheets. This invention includes a first steel sheet with a base steel sheet and a zinc-based plating layer on its surface. A second steel sheet is spot-welded to the first, creating a spot-welded zone between them. The surface layer of the base steel sheet has a decarburization ratio of 30% or more, which is crucial for its performance. The decarburization ratio is calculated using a specific equation that considers the average carbon concentration in the surface layer compared to the bulk carbon concentration. Additionally, the spot-welded zone features a shoulder portion that includes a B-type crack of 100 μm or less, with no C-type crack present.
Another notable invention is the air knife, which consists of a nozzle main body designed to inject gas according to the width of the steel plate. The nozzle lip is installed to create a narrower injection cross-sectional area for the gas. Furthermore, it includes a moment generation unit that allows the nozzle lip to curve in the width direction of the steel plate, thereby varying the gap between other nozzle lips.
Career Highlights
Chang-Woon Jee has worked with notable companies such as Posco and Posco Co., Ltd. His experience in these organizations has contributed to his expertise in steel technology and innovation.
Collaborations
He has collaborated with talented individuals in the field, including Yong-Hun Kweon and Tae-In Jang. Their teamwork has likely fostered advancements in their respective projects.
Conclusion
Chang-Woon Jee's contributions to steel technology through his patents demonstrate his innovative spirit and commitment to improving industrial processes. His work continues to influence the field and inspire future advancements.
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.