This inventor holds 2 USPTO granted patents. Top assignees: Hyundai Motor Company, Kia Motors Corporation, Kopla Co., Ltd.. Active years: 2012-2019.
Location History:
- Gyeonggi-do, KR (2012)
- Cheonan-si, KR (2019)
Company Filing History:
2 out of 20,267 
1 out of 8,094 
1 out of 2 Years Active: 2012-2019
Title: Hee Sok Chang: Innovator in Resin Compositions
Introduction
Hee Sok Chang is a notable inventor based in Cheonan, South Korea. He has made significant contributions to the field of resin compositions, particularly in applications for automotive components. With a total of 2 patents, his work showcases innovative solutions that enhance the performance and durability of materials used in turbo engines and automotive coolant systems.
Latest Patents
Chang's latest patents include a resin composition for intake hoses of turbo engines with enhanced thermal resistance. This innovative composition incorporates a specific amount of polyester elastomer into a polyamide resin and a polypropylene resin. It also includes an antioxidant, a heat stabilizer, a lubricant, and a master batch if necessary. The result is a material that exhibits excellent durability, heat resistance, elongation, mechanical rigidity, pressure resistance, and cold resistance, while also reducing weight and production costs. Another significant patent is a polyamide resin composition that combines polyamide and polyacrylate with a compatibilizer, an inorganic nucleating agent, glass fiber, an antioxidant, an anti-hydrolysis agent, and a lubricant. This composition demonstrates superior mechanical strength, heat resistance, improved glycol resistance, and visibility maintenance, making it particularly useful for applications such as automobile coolant reservoir tanks.
Career Highlights
Throughout his career, Hee Sok Chang has worked with prominent companies, including Hyundai Motor Company and Kopla Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in resin technology.
Collaborations
Chang has collaborated with notable colleagues, including Dae Sik Kim and Bong Hwan Oh. These partnerships have contributed to the advancement of his research and the successful development of his patented technologies.
Conclusion
Hee Sok Chang's contributions to the field of resin compositions highlight his innovative spirit and dedication to improving automotive materials. His patents reflect a commitment to enhancing performance and efficiency in the industry.