This inventor holds 2 USPTO granted patents. Top assignee: Oce-Van Der Grinten N.v.. Active years: 1977-1982.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1977-1982
Title: Innovations of Johannes Kortenoeven
Introduction
Johannes Kortenoeven is a notable inventor based in Helden-Panningen, Netherlands. He has made significant contributions to the field of electrophotography, holding a total of 2 patents. His work focuses on enhancing the efficiency and effectiveness of photoconductive materials.
Latest Patents
Kortenoeven's latest patents include an electrophotographic process involving double charging. This innovative process allows for the formation of an electrostatic image on a photoconductive element that consists of a photoconductive zinc oxide-binder layer and an insulating top layer. In this method, the top layer is first positively charged and then negatively charged until saturation occurs. Following this, the top layer is exposed to light in an imagewise manner. Another significant patent is for a panchromatically sensitive zinc oxide. This stable material exhibits low moisture sensitivity and dark discharge properties, making it suitable for both indirect and direct electrophotography. The production process involves reacting finely divided zinc oxide with gaseous ammonia and carbon dioxide while maintaining the motion of the zinc oxide particles. This results in a product that can be reused indefinitely under varying atmospheric humidity conditions without losing sensitivity.
Career Highlights
Kortenoeven is currently associated with Oce-van Der Grinten N.V., where he continues to innovate in the field of electrophotography. His work has contributed to advancements in photoconductive materials, enhancing their performance and reliability.
Collaborations
Kortenoeven collaborates with Jan A De Putter, furthering research and development in their field.
Conclusion
Johannes Kortenoeven's contributions to electrophotography through his innovative patents demonstrate his commitment to advancing technology in this area. His work continues to influence the development of photoconductive materials, ensuring their effectiveness in various applications.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile