Company Filing History:
Years Active: 2013
Title: David William Hullman: Innovator in Electrophotographic Imaging Technology
Introduction
David William Hullman is a notable inventor based in Lexington, KY (US). He has made significant contributions to the field of electrophotographic imaging devices. His innovative approach has led to advancements in toner transfer technology, which is crucial for the efficiency of imaging devices.
Latest Patents
David Hullman holds a patent for a "Method for enlarging toner transfer window in EP imaging device and transfer station employing the method." This patent describes a transfer station for toner transfer in an electrophotographic imaging device. The design includes an endless transfer belt transported about an endless path through the imaging device, a transfer roll adjacent to one surface of the transfer belt, and a backup roll adjacent to the opposite surface. The transfer roll and backup roll form a transfer nip that effectively transfers toner. To improve overtransfer performance, an outer layer of a thin polymer coating is applied to at least one of the transfer belt and the rolls, located within the transfer nip during toner transfer. The polymer layer has a thickness ranging from about 5 µm to about 200 µm, surface resistivity from about 1E08 to about 1E12 Ohm/cm, and a breakdown strength greater than 500 V.
Career Highlights
David Hullman is currently employed at Lexmark International, Inc., where he continues to develop innovative solutions in imaging technology. His work has been instrumental in enhancing the performance and reliability of electrophotographic devices.
Collaborations
Throughout his career, David has collaborated with talented individuals such as Brandon Alden Kemp and Niko Jay Murrell. These collaborations have fostered a creative environment that encourages innovation and the development of cutting-edge technologies.
Conclusion
David William Hullman is a distinguished inventor whose work in electrophotographic imaging technology has made a significant impact on the industry. His patent for enhancing toner transfer processes exemplifies his commitment to innovation and excellence.