Company Filing History:
3 out of 7,865 
1 out of 14,076 
Years Active: 1986-2001
Title: **James F. Sobieski: Innovator in Electrophotographic Technology**
Introduction
James F. Sobieski is a renowned inventor based in Mahtomedi, MN, with a significant contribution to the field of electrophotographic technology. With a total of four patents to his name, Sobieski's innovative work focuses on enhancing the efficiency and effectiveness of electrostatic printing systems.
Latest Patents
Among Sobieski's latest patents is the "Dielectric image release surface containing a high percent silicone composition and uses therefor." This invention introduces a high weight percentage of silicone within a silicone-urea block polymer, specifically designed for use as a dielectric layer material in electrostatic printing. The silicone concentration ranges between approximately 66% and about 94%, showcasing an innovative approach to improving dielectric properties.
Another of his notable patents is the "Electrophotographic copying apparatus and process." This invention describes a copying apparatus that alternates development between two image areas during its copying cycle. This design equalizes wear along the length of the photosensitive belt and eliminates the need for a cleaning cycle after the final copy, thereby reducing belt revolutions. Additionally, it features a combined charger/precleaner to minimize size and incorporates a light image mask to prevent unnecessary toning.
Career Highlights
James F. Sobieski has had a distinguished career, working for prominent companies in the sector. He has been associated with Minnesota Mining and Manufacturing Company, commonly known as 3M, and 3M Innovative Properties Company. These affiliations have enabled him to contribute to various projects and advancements in the field of imaging technology.
Collaborations
During his career, Sobieski collaborated with esteemed colleagues such as Robert A. Muehlhausen and Patricia J. A. Brandt. Their joint efforts have led to significant advancements in electrophotographic technology and have played a vital role in the development of innovative solutions in the imaging sector.
Conclusion
James F. Sobieski's contributions to the field of electrophotography represent a blend of innovation and practical application. His patents not only demonstrate his expertise but also his commitment to advancing technology within the industry. As he continues to innovate, Sobieski remains a key figure in the evolution of electrostatic printing systems.