This inventor holds 2 USPTO granted patents. Top assignee: Eastman-Kodak Company. Active years: 1991.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1991
Title: Innovations of Lawrence J Donivan
Introduction
Lawrence J Donivan is a notable inventor based in Rochester, NY (US). He has made significant contributions to the field of electrostatography, holding a total of 2 patents. His work focuses on improving the control and efficiency of electrostatographic machines.
Latest Patents
Donivan's latest patents include innovative processes that enhance the performance of electrostatographic machines. The first patent addresses the process control of electrostatographic machines by adjusting the toner charge-to-mass ratio in response to changes in toner contrast. This method allows an electrostatographic reproduction machine to produce a signal that reflects the toned density of the developed image. By comparing this signal to a reference value, the charge-to-mass ratio of the toner can be adjusted effectively. The adjustment is achieved by directing an ion cloud over the toner particles.
The second patent focuses on controlling the charge-to-mass ratio of developed electrostatic images. This apparatus enables an electrostatographic reproduction machine to produce a control signal that is characteristic of the ratio of toner particle electrostatic charge to toner particle mass. The control signal is generated by comparing the ratio of a toned test patch, and the adjustment is made using ions directed to the toner particles. The ion source can produce both positive and negative ions, potentially utilizing a corona charger.
Career Highlights
Donivan has spent a significant part of his career at Eastman Kodak Company, where he has been able to apply his innovative ideas in practical settings. His work has contributed to advancements in imaging technology, particularly in the realm of electrostatography.
Collaborations
One of his notable collaborators is Joseph F Laukaitis, with whom he has worked on various projects related to electrostatographic technology.
Conclusion
Lawrence J Donivan's contributions to the field of electrostatography through his patents and work at Eastman Kodak Company highlight his innovative spirit and dedication to advancing imaging technology. His inventions continue to influence the efficiency and effectiveness of electrostatographic machines.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile