Los Altos, CA, United States of America

David Fullagar

This inventor holds 1 USPTO granted patent. Top assignee: Canon Kabushiki Kaisha. Active years: 1979.

IDiyas Innovation Intelligence. (2026). Inventor Profile: David Fullagar. Retrieved from https://idiyas.com/inventor/david-fullagar-jvc44z5h

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0

Average Co-Inventor Count = 4.0

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 1979

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1 patent (USPTO):Explore Patents

Title: The Innovative Mind of David Fullagar

Introduction

David Fullagar is an accomplished inventor hailing from Los Altos, California, known for his contributions to the field of photography and electronic circuitry. With one significant patent to his name, Fullagar has demonstrated his ingenuity and commitment to advancing technology in the photography industry.

Latest Patents

Fullagar's notable patent, titled "Control circuit for a memory type electric shutter," presents a novel approach to controlling electric shutters in photographic systems. In this invention, a feedback circuit links the output of the final amplifier stage back to the input of the first stage. The integration of a photoelectric transducer with these stages allows for a compression of the output signal in relation to the signal detected by the transducer, following a logarithmic pattern. This system emphasizes the use of linear stages and circuits, enabling efficient processing without the necessity of logarithmic components. The innovation offers a valuable mechanism for enhancing shutter control in photography, allowing for additional photographic information to be utilized in the process.

Career Highlights

David Fullagar has spent a significant portion of his career at Canon Kabushiki Kaisha, a leading technology company recognized for its advancements in imaging products and solutions. His work there has positioned him at the forefront of developments in electronic shutter technology, which has implications for both professional photography and consumer electronics.

Collaborations

Throughout his career, Fullagar has engaged in collaborations with fellow innovators Tatsuya Taguchi and Yukio Iura. Their combined expertise and insights have further propelled advancements within their projects, creating impactful technologies that benefit the consumer electronics sector.

Conclusion

David Fullagar's innovative work in control circuitry for electric shutters exemplifies the significant contributions inventors can make to technology and photography. His patent not only showcases his creativity but also highlights the importance of collaboration in developing groundbreaking technologies. As he continues his work at Canon Kabushiki Kaisha, the potential for future innovations remains vast and exciting.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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