Wei-Jieh Chang

Title: **Wei-Jieh Chang: Innovator in Microfluidics and Coating Technologies**

Introduction

Wei-Jieh Chang, an accomplished inventor based in Hsinchu, Taiwan, holds three patents that showcase his expertise in microfluidics and advanced coating technologies. His innovative inventions contribute to advancements in various fields, particularly in the development of efficient microfluid driving systems and enhanced materials for industrial applications.

Latest Patents

Chang's latest patents include a groundbreaking **Microfluid Driving Device**, which features a microfluid driving platform designed on a chip. This device comprises at least two miniature Venturi pumps, a microchannel, and an optional assembly of micro mixers or micro reactors. Through a dedicated external pneumatic flow supply and control module, the device is capable of delivering varying air flows to manipulate the microfluid within the microchannel effectively. This innovative design allows for the precise control of fluid dynamics, enabling forward and backward movement or halting of the microfluid, thereby facilitating transportation, mixing, and reaction processes.

Another significant patent is his **Method of Preparing a Hearth Roll with a Coating**. This method involves plating a metal on ceramic powder using electroless plating, mixing this metal-plated ceramic powder with a metal powder to create a cement powder, and then thermally spraying the cement powder onto a hearth roll. An alternative method detailed in the patent includes creating a slurry with a binder, resulting in a sintered powder after granulation and sintering, which is also thermally sprayed onto the hearth roll.

Career Highlights

Wei-Jieh Chang is currently employed at the Industrial Technology Research Institute, where he continues to push the boundaries of technology through his research and development efforts. His contributions have significantly enhanced the capabilities of microfluidic systems and advanced materials used in industrial processes.

Collaborations

Throughout his career, Chang has collaborated with notable colleagues such as Yuh-Wen Lee and Wei-Cheng Lih. These partnerships not only foster innovative thinking but also enhance the technological advancements driven by collective expertise.

Conclusion

Wei-Jieh Chang's work exemplifies the spirit of innovation that drives technological progress. With three patents to his name and ongoing research at the Industrial Technology Research Institute, he remains a key figure in the fields of microfluidics and coating technologies, paving the way for future advancements and applications.