Company Filing History:
Years Active: 1983
Title: Horst Engelmann: Innovator in Photographic Technology
Introduction
Horst Engelmann is a notable inventor based in Wolfen, Germany. He has made significant contributions to the field of photographic technology, particularly in the development of light-sensitive materials.
Latest Patents
Engelmann holds a patent for light-sensitive, color photographic silver halide compositions. This innovative patent describes a multilayer material that enhances definition, grain, and color rendition through the use of DIR-couplers. These couplers are uniquely substituted in the coupling position by mercapto-azole, mercaptobenz-azole, or mercapto-azine moieties, which carry hydrophilic substituents. The DIR-couplers can be utilized alongside other couplers and additives or as the sole color-forming element. They are recognized for their high color yields and inter- and intra-image effects. The couplers can be added in both hydrophobic and hydrophilic states, allowing for versatile applications in single or associated layers.
Career Highlights
Engelmann has worked at VEB Filmfabrik Wolfen, where he has been instrumental in advancing photographic technologies. His work has contributed to the evolution of color photographic materials, making them more efficient and effective.
Collaborations
Engelmann has collaborated with notable coworkers, including Rainer Redmann and Monika Bethke. Their combined efforts have furthered the development of innovative photographic solutions.
Conclusion
Horst Engelmann's contributions to photographic technology through his patent and work at VEB Filmfabrik Wolfen highlight his role as a significant inventor in this field. His innovations continue to influence the industry and enhance the quality of photographic materials.