Company Filing History:
Years Active: 1976-1978
Title: The Innovations of Donald Lee Fields
Introduction
Donald Lee Fields is a notable inventor based in Rochester, NY (US). He has made significant contributions to the field of photography through his innovative patents. With a total of 2 patents, Fields has focused on developing compounds that enhance photographic processes.
Latest Patents
Fields' latest patents include advancements in positive-working immobile photographic azo compounds. These patents disclose photographic elements and processes for forming images in photographic materials. The inventions relate to immobile compounds that can provide positive images from negative recording-developing photographic materials, such as negative silver halide emulsions. The compounds are designed to release photographically useful groups under alkaline conditions and react with oxidized silver halide developing agents. This results in a reaction product that has a substantially lower rate of release of the photographically useful group. Specific embodiments of these compounds include an electrophilic cleavage group located between a ballast group and a photographically useful moiety, with the cleavage group being a carbamic acid derivative.
Career Highlights
Fields has had a distinguished career, primarily working with Eastman Kodak Company. His work has significantly impacted the photographic industry, particularly in the development of new imaging technologies. His innovative approach has led to advancements that improve the quality and efficiency of photographic processes.
Collaborations
Throughout his career, Fields has collaborated with notable coworkers, including Richard P. Henzel and Richard A. Chasman. These collaborations have contributed to the success of his inventions and the advancement of photographic technology.
Conclusion
Donald Lee Fields is a prominent inventor whose work in photographic compounds has paved the way for advancements in imaging technology. His contributions continue to influence the field, showcasing the importance of innovation in photography.