Kang H Ahn

Title: Kang H. Ahn: Inventor of Surface and Fluid Cleaning Technologies

Introduction

Kang H. Ahn is an inventor associated with Minneapolis, Minnesota, and the Regents of the University of Minnesota. His work includes patented approaches to removing unwanted particles from surfaces using pressure changes, bubbles, and phase transitions. Ahn is credited with 2 patents.

Latest Patents

Ahn’s listed patents, “Process for Surface and Fluid Cleaning” and “System for Surface and Fluid Cleaning,” describe related methods for cleaning articles. One embodiment submerges an article in a vessel, raises the pressure, and then rapidly depressurizes the vessel. The resulting bubbles form around unwanted particles and rise through the liquid, helping remove debris from the article’s surface.

A second embodiment applies a cleaning fluid to a surface and freezes it. Freezing reduces the adhesion between the surface and the unwanted particles. The surface is then heated, allowing the cleaning fluid to carry away the loosened particles.

Career Highlights

Ahn’s patent work focuses on using physical processes to improve surface cleaning. The described techniques combine surface-tension effects with changes between liquid and gas phases, offering distinct approaches to particle removal.

Collaborations

Ahn is associated with the Regents of the University of Minnesota. His listed coworker is Benjamin Y. Liu.

Conclusion

Kang H. Ahn’s patents present pressure-driven bubble formation and freeze-and-heat cleaning as methods for removing unwanted particles from surfaces.