This inventor holds 5 USPTO granted patents. Top assignees: Imation Corporation, 3M Innovative Properties Company. Active years: 1995-1998.
Location History:
- Harlow, GB (1995 - 1996)
- Cheshunt, GB (1998)
- Pinnacles, GB (1998)
- Harlow Essex, GB (1998)
Company Filing History:
Years Active: 1995-1998
Title: The Innovative Contributions of Julian M Wallis
Introduction
Julian M Wallis is a notable inventor based in Harlow, GB. He has made significant contributions to the field of photographic materials, holding a total of 5 patents. His work has advanced the technology behind imaging materials, showcasing his expertise and innovative spirit.
Latest Patents
Among his latest patents is a groundbreaking invention titled "Photographic materials with improved image tone." This patent describes a silver halide emulsion with an average grain size of 0.2 µm or less. The emulsion comprises silver halide grains with a core and an outer shell, where the core contains at least 85 mol % of the total silver halide content, predominantly silver bromide. The outer shell consists of silver halide, with more than 50 mol % being silver chloride. Notably, the emulsion may either contain no rhodium dopant or have a concentration of the dopant that is equal in both the core and the shell.
Another significant patent is for "Silver halide imaging materials," which details a black and white photographic element. This element features a photosensitive medium that includes a layer of silver halide emulsion. The photosensitive medium is characterized by the presence of a developer that comprises a substantially non-diffusing polymeric compound. This compound contains a plurality of units with a specific structural formula, enhancing the functionality of the photographic element.
Career Highlights
Julian M Wallis has worked with prominent companies in the industry, including Imation Corporation and Minnesota Mining and Manufacturing Company. His experience in these organizations has contributed to his development as an inventor and innovator in photographic technology.
Collaborations
Throughout his career, Wallis has collaborated with notable individuals such as Robert J Nairne and Alexis Sarah Zinn-Warner. These collaborations have likely enriched his work and led to further advancements in his field.
Conclusion
Julian M Wallis stands out as a significant figure in the realm of photographic innovations. His patents reflect a deep understanding of silver halide technology and its applications. His contributions continue to influence the industry and inspire future advancements in photographic materials.