This inventor holds 5 USPTO granted patents. Top assignee: Eastman-Kodak Company. Active years: 1996-1998.
Location History:
- Rochester, NY (US) (1996 - 1998)
- Hilton, NY (US) (1998)
Company Filing History:
Years Active: 1996-1998
Title: The Innovative Contributions of Robert John Opitz
Introduction
Robert John Opitz is a notable inventor based in Rochester, NY (US). He has made significant contributions to the field of photography and materials science, holding a total of 5 patents. His work focuses on developing environmentally friendly photographic compositions and advanced pigments.
Latest Patents
One of his latest patents is a weakly alkaline ascorbic acid developing composition. This innovative processing kit includes a black-and-white developing composition that utilizes ascorbic acid as a developing agent, along with an auxiliary super-additive developing agent, borate buffer, and a preservative. The composition maintains a pH from 7 to less than 9 and can be formulated from two separately packaged parts, either in dry or liquid form. The borate buffer is essential for maintaining the desired pH, while the developing agents are present in optimal molar ratios for enhanced developing activity. This composition improves photographic properties while avoiding the use of environmentally harmful dihydroxybenzenes.
Another significant patent is the synthesis of bis(phthalocyanylalumino)tetraphenyldisiloxanes. This cyan pigment is prepared in a single reaction mixture by reacting a phthalonitrile at high temperature with an aluminum salt in the presence of an ammonia donor, such as urea, within an inert, high boiling organic solvent. The resulting product is then cooled and refluxed in an aqueous solution of a pyridine compound containing dichlorodiphenylsilane, leading to the isolation of the desired cyan pigment.
Career Highlights
Robert John Opitz is associated with the Eastman Kodak Company, where he has contributed to various innovative projects. His work has been instrumental in advancing photographic technology and materials.
Collaborations
He has collaborated with notable coworkers, including Silvia Zawadzki and Mary Ellen Craver, who have also contributed to the innovative projects at Eastman Kodak Company.
Conclusion
Robert John Opitz's contributions to the field of photography and materials science are noteworthy. His innovative patents reflect a commitment to environmentally friendly practices and advanced technology. His work continues to influence the industry positively.