This inventor holds 8 USPTO granted patents and 3 published patent applications. Top assignees: Sk Chemicals, Sk Chemicals Co., Ltd., Hyundai Motor Company. Active years: 2023-2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
3 out of 12 
3 out of 201 
2 out of 20,375 
Years Active: 2023-2026
Title: The Innovative Contributions of Ji-Hun Kim
Introduction
Ji-Hun Kim is a notable inventor based in Gyeonggi-do, South Korea. He has made significant contributions to the field of materials science, particularly in the recycling of polyester materials. With a total of 8 patents to his name, his work focuses on developing methods to create high-quality recycled materials.
Latest Patents
One of Ji-Hun Kim's latest patents is a method for preparing a recycled material using waste copolyester. This innovative method involves several steps: first, depolymerizing a waste copolyester to obtain a first reactant; second, removing impurities from the first reactant to yield a second reactant; third, distilling the second reactant to produce a third reactant containing crude recycled bis-2-hydroxyethyl terephthalate and a fourth reactant containing a recycled diol-ester; and finally, mixing the third reactant with an aqueous solvent and recrystallizing it to obtain a fifth reactant containing recycled bis-2-hydroxyethyl terephthalate and a filtrate. Another significant patent involves a polyester resin that utilizes recycled bis(2-hydroxyethyl) terephthalate. This resin is derived from the depolymerization of waste polyester and maintains a diethylene glycol ester content at a certain level or less. Remarkably, this recycled resin matches the quality of original resins, making it suitable for manufacturing various articles.
Career Highlights
Throughout his career, Ji-Hun Kim has worked with prominent companies such as SK Chemicals Co., Ltd. and Hyundai Motor Company. His experience in these organizations has allowed him to apply his innovative ideas in practical settings, contributing to advancements in sustainable materials.
Collaborations
Ji-Hun Kim has collaborated with notable colleagues, including Kwang-Woo Park and Joong Ki Lee. These partnerships have fostered a creative environment that encourages the development of groundbreaking technologies.
Conclusion
Ji-Hun Kim's work exemplifies the potential of innovation in recycling and materials science. His patents not only contribute to environmental sustainability but also demonstrate the high quality achievable with recycled materials. His ongoing efforts in this field are paving the way for a more sustainable future.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile