James F Stewart

Title: James F. Stewart - Innovator in Photographic Printer Technology

Introduction

James F. Stewart, an inventive mind based in Shoreview, MN, has made significant contributions to the field of photographic printing technology. With a total of six patents to his name, Stewart's innovations focus on enhancing the efficiency and functionality of photographic printers, particularly in exposure control mechanisms.

Latest Patents

Stewart's most recent patents showcase his innovative approach to photographic printing. His patent titled "Exposure Control for Subtractive Photographic Printer" introduces a system that achieves extremely short exposure times by synchronizing a shutter and color filters. The design allows for precise control of exposure times based on the delay between the activation of the shutter and the color filter, leading to faster and more efficient printing processes.

Another noteworthy invention is the "Neghold Assembly for Photographic Printer," which provides a clamping mechanism for holding photographic film during printing. This assembly includes a bottom clamping surface, a pivot arm, and a top clamping plate, enhancing the stability of film exposure while allowing light to pass through the negatives effectively.

Career Highlights

Throughout his career, James F. Stewart has been associated with reputable companies that have leveraged his inventive skills. Notably, he has worked with Pako Corporation and The Toro Company, where his expertise in photographic technology has been instrumental in developing state-of-the-art printing solutions.

Collaborations

Stewart has collaborated with notable colleagues in his field, including John F. Brackin and Robert D. Lampher. Their combined expertise has contributed to the advancement of innovations within the photographic industry, fostering a collaborative environment that has nurtured numerous inventive ideas.

Conclusion

James F. Stewart stands out as a prominent inventor in the world of photographic printing. His innovative patents reflect a commitment to improving printing technology and a drive to enhance user experience. As he continues to push the boundaries of what is possible in this field, Stewart's legacy as a pioneer will undoubtedly influence future developments in photographic printing.