This inventor holds 11 USPTO granted patents. Top assignees: Institute of Nuclear Energy Research, Ziyu Enterprise Co., Ltd., Other. Active years: 2010-2025.
Location History:
- Taoyuan County, TW (2010)
- Taichung County, TW (2011)
- Taichug, TW (2017)
- Taichung, TW (2015 - 2022)
Company Filing History:

Years Active: 2010-2025
Title: Chi-Yuan Chang: Innovator in Miniature Pump Technology
Introduction
Chi-Yuan Chang is a notable inventor based in Taichung, Taiwan. He has made significant contributions to the field of engineering, particularly in the development of innovative pumping technologies. With a total of 11 patents to his name, Chang has established himself as a key figure in the industry.
Latest Patents
Among his latest inventions is a miniature pump designed to efficiently manage air flow. This miniature pump consists of an upper shell, an air bag, and a lower shell. The air bag is formed on the upper shell and is compressible to pump air from it while being expansible to suck air into it. The lower shell is connected to the upper shell in an air-tight manner and includes two grids for reinforcement, ensuring that it does not deform when the air bag is compressed. Another significant invention is a vacuum storage apparatus that includes a bag and a pump. This apparatus features a zipper to close the mouth of the bag and a pump that consists of a shell, a bottom plate, and two check valves. The design allows for efficient air removal and storage, enhancing the functionality of vacuum bags.
Career Highlights
Chi-Yuan Chang has worked with various organizations, including the Institute of Nuclear Energy Research under the Atomic Energy Council, Executive Yuan. His experience in these institutions has contributed to his expertise in developing innovative technologies.
Collaborations
Throughout his career, Chang has collaborated with notable colleagues such as Charn-Ying Chen and Yeong-Der Lin. These partnerships have fostered a creative environment that has led to the development of groundbreaking inventions.
Conclusion
Chi-Yuan Chang's contributions to the field of engineering, particularly through his innovative pumping technologies, have made a lasting impact. His work continues to inspire future inventors and engineers in the industry.