This inventor holds 7 USPTO granted patents and 1 published patent application. Top assignees: Vtera Technology Inc., Vetra Technology, Inc., Other. Active years: 2004-2019.
Location History:
- Hsinchu, TW (2004 - 2005)
- Taichung, TW (2004 - 2019)
Company Filing History:
3 out of 3 
2 out of 2 
2 out of 834,411 Years Active: 2004-2019
Title: Innovations of Chiung-Yu Chang
Introduction
Chiung-Yu Chang is a notable inventor based in Hsinchu, Taiwan. He has made significant contributions to the field of technology, holding a total of 7 patents. His work reflects a commitment to advancing engineering and design.
Latest Patents
One of his latest inventions is a scroll saw, which features a machine base that includes two parallel transmission shafts. These shafts are interconnected through a synchronous unit, which consists of an upper crankshaft and a lower crankshaft. The design incorporates multiple crankshaft connecting levers, ensuring that when one transmission shaft rotates, the other is driven to rotate as well. This innovative mechanism minimizes vibration and noise, enhancing the overall performance of the scroll saw.
Another significant invention is a GaN-based heterostructure photodiode. This device comprises a P type layer, an N type layer, and an activity layer made of GaN-based composition. The activity layer is doped with boron to modulate the band gap between the P type and N type layers. This design increases the breakdown voltage and improves light detection capabilities, making the photodiode a more effective light receiving element.
Career Highlights
Chiung-Yu Chang has worked with several companies, including Vtera Technology Inc. and Vetra Technology, Inc. His experience in these organizations has contributed to his expertise and innovative capabilities in the field.
Collaborations
Some of his notable coworkers include Mu-Jen Lai and Chia-Cheng Liu. Their collaboration has likely fostered a creative environment that encourages innovation and development.
Conclusion
Chiung-Yu Chang's contributions to technology through his patents and collaborations highlight his role as a significant inventor in the industry. His work continues to influence advancements in engineering and design.