Middlesex, United Kingdom

Simon Roger Johnson

This inventor holds 1 USPTO granted patent. Top assignee: Tonejet Limited. Active years: 2004.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Simon Roger Johnson. Retrieved from https://idiyas.com/inventor/simon-roger-johnson

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

Average Co-Inventor Count = 4.0

ph-index = 1


Company Filing History:


Years Active: 2004

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1 patent (USPTO):Explore Patents

Title: Simon Roger Johnson: Innovator in Drop-on-Demand Printing Technology

Introduction

Simon Roger Johnson is a notable inventor based in Middlesex, GB. He has made significant contributions to the field of printing technology, particularly with his innovative designs and patents. His work has paved the way for advancements in drop-on-demand printing systems.

Latest Patents

Simon holds a patent for a drop-on-demand printer. This printer features a row of ink ejection locations designed for ejecting multiple ink droplets. Each ejection location is equipped with an associated ejection electrode, which receives a voltage to facilitate the electrostatic ejection of droplets. Additionally, the design includes guard channels positioned between adjacent ejection locations, each containing an electrode. The control means applies a voltage to these guard channel electrodes, averaging the voltages applied to the adjacent ejection location electrodes over a specified time.

Career Highlights

Simon is currently employed at Tonejet Limited, where he continues to develop and refine printing technologies. His expertise in electrostatic ejection mechanisms has been instrumental in enhancing the efficiency and quality of printing processes.

Collaborations

Throughout his career, Simon has collaborated with talented individuals such as Andrew John Clippingdale and Daniel Richard Mace. These partnerships have fostered innovation and creativity in their projects.

Conclusion

Simon Roger Johnson is a distinguished inventor whose work in drop-on-demand printing technology has made a lasting impact on the industry. His innovative designs and collaborative efforts continue to drive advancements in printing solutions.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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