Location History:
- Hamburg, DE (1979)
- Reinbek, DE (1978 - 1980)
- Stemwarde Siedlung, DE (1979 - 1983)
Company Filing History:
7 out of 16 
1 out of 55 
Years Active: 1978-1983
Title: Innovation and Impact: The Contributions of Inventor Harald Janssen
Introduction
Harald Janssen, a talented inventor hailing from Reinbek, Germany, has made significant advancements in the field of electrical insulation materials. With a total of seven patents to his name, his work has paved the way for improved methods of insulating electrical conductors, showcasing his innovative approach and technical expertise.
Latest Patents
Among his most notable patents, the first involves a revolutionary polyester-amide resin. This method entails insulating an electrical conductor by applying a solvent-free polyesterimide resin coating that hardens through its free OH groups when subjected to heat above 100°C. The innovative aspect of this resin lies in its preparation, which utilizes esterification or ester-exchange of materials in conjunction with short-chain diols, optimizing insulation performance while avoiding the pitfalls associated with solvent presence.
Another significant patent from Janssen focuses on insulated wires. He introduced a partially crystalline thermoplastic polyamide designed for the extrusion of thermoplastic coatings, consisting of terephthalic acid or its functional derivatives, along with hexamethylenediamine and isophoronediamine. His work outlines not only the creation of insulated wires employing this polyamide but also the process for producing these high-quality insulated wires, further enhancing electrical safety and efficiency.
Career Highlights
Janssen's career has been marked by his contributions to Dr. Beck & Co. AG and Maillefer SA, where he applied his expertise in materials science to develop cutting-edge insulation solutions. His patents reflect his commitment to innovation and his ability to solve complex problems in electrical engineering, making him a respected figure in the industry.
Collaborations
Throughout his career, Janssen has collaborated with esteemed colleagues such as Ferdinand Hansch and Eberhard Kertscher. These collaborations have fostered an environment of creativity and technical advancement, enabling the development of novel solutions that address industry needs.
Conclusion
Harald Janssen's contributions to the field of electrical insulation materials demonstrate his innovative spirit and dedication to improving safety and efficiency within electrical systems. His seven patents reflect a mind constantly seeking new solutions and advancements—ensuring a lasting impact on the industry and establishing himself as a noteworthy inventor in the realm of materials science.