Joel D Coomer

Title: The Innovative Contributions of Joel D Coomer

Introduction

Joel D Coomer is an accomplished inventor based in Springboro, Ohio. He has made significant contributions to the field of inkjet printing technology. His innovative work has led to the development of a unique ink composition that enhances the efficiency and stability of continuous inkjet printing systems.

Latest Patents

Coomer holds a patent for "Continuous ink jet ink compositions." This invention relates to the continuous inkjet printing of an aqueous pigmented ink composition that is recycled from a main ink supply reservoir. The technology employs a printer with a fluid delivery system capable of measuring the ink's electrical resistivity. This system provides the necessary quantities of either vehicle replenisher fluid or fresh ink to maintain the desired recycled ink concentration. The electrical resistivity of the pigmented ink can be modified for stable ink recycling by adding the organic amine salt of an acid. Additionally, the pH stability of the ink can be improved by including the neutral form of the organic amine in similar molar proportions to the amine salt. These pigmented inkjet ink compositions ensure particularly stable and invariant fluid properties during extended printer operation and ink recirculation.

Career Highlights

Coomer is associated with Eastman Kodak Company, where he has applied his expertise in ink technology. His work has contributed to advancements in printing solutions that are both efficient and environmentally friendly.

Collaborations

Coomer has collaborated with notable colleagues, including Allan Francis Sowinski and Wayne Cook. Their combined efforts have fostered innovation in the field of inkjet printing.

Conclusion

Joel D Coomer's contributions to inkjet printing technology exemplify the impact of innovative thinking in the industry. His patent for continuous inkjet ink compositions showcases his commitment to enhancing printing efficiency and stability.