Company Filing History:
Years Active: 1993-2014
Title: Innovations of Yi Hua Ma
Introduction
Yi Hua Ma is a prominent inventor based in Worcester, MA (US). He has made significant contributions to the field of materials science and engineering, holding a total of nine patents. His work primarily focuses on developing advanced membranes and composite structures for gas separation applications.
Latest Patents
One of Yi Hua Ma's latest patents is titled "High permeance sulfur tolerant Pd/Cu alloy membranes." This invention discloses a method for creating a membrane that is permeable to hydrogen gas. The process involves forming a palladium layer, depositing a layer of copper on top, and then galvanically displacing a portion of the copper with palladium. This innovative membrane exhibits improved resistance to poisoning by hydrogen sulfide (HS) compared to traditional palladium membranes. Additionally, it offers increased permeance of hydrogen gas compared to palladium-copper alloys and can be annealed at lower temperatures for shorter durations.
Another notable patent is related to "Composite structures with porous anodic oxide layers and methods of fabrication." This invention describes composite structures that feature a porous anodic oxide layer, such as a porous anodic aluminum oxide layer. The invention includes a composite gas separation module with a porous metal substrate and a dense gas-selective membrane that overlies the porous anodic aluminum oxide layer. Furthermore, it outlines methods for fabricating composite gas separation modules and filters, as well as techniques for selectively separating hydrogen gas from gaseous streams.
Career Highlights
Yi Hua Ma is affiliated with Worcester Polytechnic Institute, where he continues to advance research in materials science. His innovative work has garnered attention in both academic and industrial circles, contributing to the development of new technologies in gas separation.
Collaborations
Throughout his career, Yi Hua Ma has collaborated with notable colleagues, including Ivan P Mardilovich and Erik E Engwall. These collaborations have further enriched his research and expanded the impact of his inventions.
Conclusion
Yi Hua Ma's contributions to the field of materials science through his innovative patents demonstrate his commitment to advancing technology in gas separation. His work continues to influence the industry and inspire future research in this critical area.