Location History:
- Mannheim, DE (1977)
- Ludwigshafen, DE (1977 - 1979)
- Jenesien, IT (1978 - 1981)
Company Filing History:
12 out of 10,754 
1 out of 88 
Years Active: 1977-1981
Title: The Innovative Journey of Eduard Schoenafinger
Introduction
Eduard Schoenafinger, an esteemed inventor based in Ludwigshafen, Germany, has made significant contributions to the field of magnetic recording mediums. With a remarkable portfolio of 13 patents, he has demonstrated his expertise and commitment to innovation throughout his career.
Latest Patents
Among his latest inventions are two noteworthy patents focused on the stabilization of chromium dioxide magnetic pigments. The first patent describes a method for stabilizing these pigments against loss of their magnetic properties using a block copolymer consisting of siloxane units and alkyleneoxy units. This innovative approach involves treating the chromium dioxide magnetic pigments in an aqueous and/or alcoholic suspension, with the copolymer applied in an amount ranging from 1 to 40% by weight. This treatment results in coated pigments that retain their magnetic properties even under adverse climatic conditions.
The second patent similarly addresses the stabilization of chromium dioxide magnetic pigments, where the pigments are treated in an alcoholic aqueous suspension with a silane or its hydrolysis product. The process ensures that the particles are coated with partially hydrolyzed silane upon isolation from the suspension, followed by drying at temperatures between 50°C and 200°C. These methodologies enhance the durability and effectiveness of magnetic recording media.
Career Highlights
Eduard Schoenafinger's career has been significantly shaped by his tenure at prominent companies, including BASF Aktiengesellschaft and Badische Anilin- & Soda-fabrik Aktiengesellschaft. His experience within these leading organizations has enabled him to cultivate his skills and contribute to groundbreaking advancements in his field.
Collaborations
Throughout his career, Schoenafinger has collaborated with esteemed colleagues, notably Eberhard Koester and Manfred Ohlinger. These partnerships have fostered a collaborative environment that has enriched the innovative process and led to the successful development of various patented technologies.
Conclusion
Eduard Schoenafinger's contributions to the field of magnetic recording technology exemplify the spirit of innovation. Through his 13 patents, he continues to impact the industry positively, enhancing the stability and performance of magnetic recording mediums. His collaborations and experiences within renowned companies further underscore his dedication to advancing technology, making him a significant figure in the realm of inventions.