Chih-hsin Shih

Title: Chih-hsin Shih: Inventor of Centrifugal Mixing and Microfluidic Viscosity Technologies.

Introduction

Chih-hsin Shih is an inventor based in Taichung, Taiwan. His patent work includes technologies for centrifugal mixing and microfluidic measurement. He is associated with Feng Chia University and holds 2 patents.

Latest Patents

Shih’s listed patents address practical mechanisms for laboratory and measurement applications.

- **Mixing disk assembly for use on centrifugal platform.** This invention describes an inner disk with pawls and a rotatable outer disk with tapered recesses. When the pawls engage the recesses, the disks rotate together with the centrifugal platform. If the inner disk stops while the outer disk continues rotating, the pawls disengage and move to the next recesses, enabling continued motion.

- **Viscometer and operation method thereof.** This invention uses a disk containing a microfluidic structure with connected chambers. An annular second chamber holds an indicator whose pendulum-like motion oscillates as the disk operates. The oscillation amplitude is used to calculate the viscosity of a sample in the chamber.

Career Highlights

Shih’s patent portfolio reflects an interest in combining mechanical motion with fluid-handling and measurement systems. His inventions describe ways to coordinate rotating components and to derive viscosity measurements from indicator movement.

Collaborations

Shih’s listed coworkers include Shen-fu Weng and Chia-Tse Shih. His association with Feng Chia University provides an institutional context for his inventive work.

Conclusion

Chih-hsin Shih’s patents focus on centrifugal mixing and microfluidic viscometry, applying mechanical design and motion-based measurement to laboratory technologies.