This inventor holds 3 USPTO granted patents. Top assignees: Energy Conversion Devices, Inc., Xerox Corporation. Active years: 1978-1982.
Company Filing History:
Years Active: 1978-1982
Title: Yew C Chang: Innovator in Imaging Technologies
Introduction
Yew C Chang is a notable inventor based in Oakville, CA, recognized for his contributions to imaging technologies. He holds a total of 3 patents that showcase his innovative approaches in the field.
Latest Patents
One of his latest patents is titled "Particle formation by double encapsulation." This invention describes an improved photoelectrophoretic imaging process that involves placing a suspension of double encapsulated electrically photosensitive particles in an electric field. The process includes exposing the suspension to a pattern of electromagnetic radiation and separating the surfaces, resulting in the exposed portion adhering to one surface while the unexposed portion adheres to another. The imaging particles consist of a first resin encapsulating a colorant and a second resin that encapsulates the first resin, containing the electrically photosensitive material.
Another significant patent is "Imaging and recording of information utilizing a tellurium tetrahalide." This invention involves selected areas of a layer comprising an imaging material in the form of a tellurium tetrahalide adduct of an aromatic amine. The imaging material undergoes a change in detectable characteristics when subjected to imaging energy and development energy, producing a latent image followed by a heat development step to create the recorded information or image.
Career Highlights
Throughout his career, Yew C Chang has worked with prominent companies such as Energy Conversion Devices, Inc. and Xerox Corporation. His work has significantly impacted the field of imaging technologies, leading to advancements that enhance imaging processes.
Collaborations
Yew C Chang has collaborated with notable individuals in the industry, including Stanford R Ovshinsky and David A Strand. These collaborations have contributed to the development of innovative technologies and solutions in imaging.
Conclusion
Yew C Chang's contributions to imaging technologies through his patents and collaborations highlight his role as an influential inventor. His work continues to inspire advancements in the field, showcasing the importance of innovation in technology.