Location History:
- Gunpo-si, KR (2016 - 2019)
- Gyeonggi-do, KR (2015 - 2020)
Company Filing History:
9 out of 19 
1 out of 6 
1 out of 11 Years Active: 2015-2024
Title: Innovations by Inventor Sun Ki Chang
Introduction
Sun Ki Chang, an accomplished inventor based in Gyeonggi-do, South Korea, has made significant contributions to the field of chemistry with a portfolio of 10 patents. His inventive work focuses on the synthesis of complex molecules used in various applications, showcasing his prowess as an innovator.
Latest Patents
Among his latest contributions are two notable patents. The first, titled "Method for Preparing Gadobutrol," introduces a novel technique for producing high-purity gadobutrol or its hydrates. This method offers advantages over conventional processes by simplifying the synthesis through in-situ formation of gadolinium complexes and eliminating the need for a resin purification process. As a result, this innovative preparation method allows for the mass production of high-purity gadobutrol efficiently and economically.
The second patent, "Method for Preparing Ligand for Polyketone Polymerization Catalyst," details a method for creating a specific ligand, ((2,2-dimethyl-1,3-dioxane-5,5-diyl)bis(methylene))bis(bis(2-methoxyphenyl)phosphine), under mild conditions. The process yields high-purity products that can also be readily scaled for mass production, solidifying its practical application in industrial settings.
Career Highlights
Sun Ki Chang has had a distinguished career working for renowned companies, notably St Pharm Co., Ltd. and Hyosung Chemical Corporation. His experience in these organizations has contributed to his development as an expert in chemical synthesis and patent generation.
Collaborations
Throughout his career, Sun Ki Chang has collaborated with skilled professionals, including Geun Jho Lim and Chang Ho Byeon. These collaborations have facilitated the exchange of innovative ideas and the development of groundbreaking technologies.
Conclusion
Sun Ki Chang stands out as a significant contributor to the field of chemical innovations. His patents reflect a commitment to advancing technology through efficient and effective methods of synthesis. With continued work and collaboration, he is set to inspire future developments in the industry.