Dae Sung Chang

Title: Dae Sung Chang: Innovator in Phase-Change Materials

Introduction

Dae Sung Chang is a notable inventor based in Gyeonggi-do, South Korea. He has made significant contributions to the field of phase-change materials, holding a total of 3 patents. His work focuses on developing innovative suspension fluids that exhibit unique properties under varying conditions.

Latest Patents

One of his latest patents is a phase-change material suspension fluid composition that includes fumed silica particles. This invention discloses a suspension fluid prepared by dispersing fumed silica particles in a solvent containing ethylene glycol, propylene glycol, and water. The resulting phase-change suspension fluid behaves as a shear-thickening fluid, maintaining a constant Newtonian behavior at low shear rates while exhibiting non-Newtonian behavior at high shear rates. This innovation allows the fluid to change its phase with vehicle vibrations, combining the advantages of hydro bushes and solid-type bushes.

Another significant patent involves a phase-change suspension fluid composition that includes polyethylene oxide particles. This fluid is created by dispersing polyethylene oxide particles into a solvent comprising water and ethylene glycol or propylene glycol. The resulting shear-thinning fluid demonstrates a constant Newtonian behavior at low shear rates but transitions to a liquid-like suspension at high shear rates. This invention also allows for reversible phase changes due to vehicle vibrations, providing benefits of both hydraulic and solid bushes.

Career Highlights

Dae Sung Chang has worked with prominent companies in the automotive industry, including Hyundai Motor Company and Kia Motors Corporation. His experience in these organizations has contributed to his expertise in developing advanced materials for vehicle applications.

Collaborations

Throughout his career, Dae Sung Chang has collaborated with talented individuals such as Jong Min Park and Jae Sik Seo. These partnerships have fostered innovation and the development of cutting-edge technologies in the field of phase-change materials.

Conclusion

Dae Sung Chang is a distinguished inventor whose work in phase-change materials has led to significant advancements in suspension fluid technology. His innovative patents and collaborations with leading automotive companies highlight his impact on the industry.