Harry J Krall

Title: The Innovations of Harry J. Krall

Introduction

Harry J. Krall is a notable inventor based in Webster, NY (US). He has made significant contributions to the field of photography through his innovative patents. With a total of 3 patents, Krall has focused on enhancing the manufacturing processes and functionalities of photographic elements.

Latest Patents

One of his latest patents involves the manufacture of cellulose ester film. This invention incorporates a polyethoxylated phosphate ester in a film-forming composition containing a cellulose ester dissolved in a solvent medium. This approach has been found to promote the stripping of the film from the surface on which it is cast. The use of polyethoxylated phosphate esters as stripping aids is particularly advantageous in the manufacture of cellulose ester film bases in the photographic industry. Another significant patent by Krall is related to photographic elements provided with a magnetic recording stripe. This invention allows for sound recording by applying a magnetic striping composition, which contains finely-divided magnetic particles and an acrylated epoxy resin, over the anti-halation layer of the element. The striping composition penetrates the anti-halation layer to contact the support and is cured to form an alkali-insoluble cross-linked stripe that is strongly bonded to the support, resisting removal by alkaline photographic processing solutions.

Career Highlights

Harry J. Krall has had a distinguished career at Eastman Kodak Company, where he has been instrumental in developing innovative photographic technologies. His work has significantly impacted the industry, particularly in enhancing the quality and functionality of photographic products.

Collaborations

Throughout his career, Krall has collaborated with notable coworkers such as Chen-i Lu and Herman R. Osmers. These collaborations have contributed to the advancement of photographic technologies and innovations.

Conclusion

Harry J. Krall's contributions to the field of photography through his patents and innovations have made a lasting impact on the industry. His work continues to influence the development of photographic technologies today.