Location History:
- Ningbo, CN (2022)
- Ann Arbor, MI (US) (2018 - 2023)
Company Filing History:
11 out of 4,120 
4 out of 3,378 
1 out of 36,608 
Years Active: 2018-2023
Title: **Chengang Ji: Innovator in Optical Filter Technologies**
Introduction
Chengang Ji, an accomplished inventor based in Ann Arbor, Michigan, has significantly contributed to the field of optical technologies with a portfolio of 14 patents. His innovative spirit is reflected in his latest inventions, which demonstrate a keen understanding of photonic crystals and structural color filters.
Latest Patents
Among his most recent patents is the invention of decorative near-infrared transmission optical filter devices. This technology is a colored visibly opaque, highly efficient filter that operates in the near-infrared spectrum. It is constructed using a photonic crystal stack with a unique arrangement of high and low refractive index layers. The filter effectively transmits specific infrared wavelengths while reflecting visible light, creating a visually appealing output. Additionally, he has developed a method for manufacturing structural color filters through the electrodeposition of metal, dielectric, and metal layers, an innovative approach that enhances the efficiency and effectiveness of color filters.
Career Highlights
Chengang Ji has had a remarkable career, working for significant organizations such as Toyota Motor Engineering & Manufacturing North America and the University of Michigan. His experience in these institutions has allowed him to apply his academic research in practical settings, leading to ground-breaking innovations that bridge theory and application.
Collaborations
Throughout his career, Chengang has collaborated with notable professionals such as Debasish Banerjee and Kyu-Tae Lee. These collaborations have not only advanced his research but have also contributed to the development of advanced optical technologies that push the boundaries of existing scientific knowledge.
Conclusion
Chengang Ji continues to be a prominent figure in the realm of technological innovation, particularly in optical filter devices. His dedication to research and development has led to numerous patents that pave the way for new advancements in the industry, marking him as a notable inventor in the landscape of modern scientific endeavors.