Nagaokakyo, Japan

Shoji Oka

This inventor holds 1 USPTO granted patent. Top assignee: Mitsubishi Paper Mills Limited. Active years: 1976.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shoji Oka. Retrieved from https://idiyas.com/inventor/shoji-oka-cel6jjrk

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 5.0

ph-index = 1

Forward Citations = 1(Granted Patents)


Company Filing History:


Years Active: 1976

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1 patent (USPTO):Explore Patents

Title: The Innovations of Shoji Oka in Photographic Materials

Introduction

Shoji Oka is a notable inventor based in Nagaokakyo, Japan, recognized for his contributions to the field of photographic materials. With a focus on enhancing photosensitive technologies, Oka has made a significant impact through his innovative work.

Latest Patents

Oka holds a patent related to photographic silver halide photosensitive materials. His invention involves double merocyanine compounds which serve as sensitizing dyes in silver halide photosensitive materials. This advancement has the potential to improve the quality and efficiency of photographic processes.

Career Highlights

Throughout his career, Shoji Oka has been associated with Mitsubishi Paper Mills Limited, a prominent company in the production of paper and related materials. His inventive work has been pivotal in advancing the capabilities of photographic technology within the company.

Collaborations

Oka has collaborated with notable colleagues such as Akira Tanaka and Shoichi Horii. Their teamwork in research and development has fostered a creative environment that encourages innovation in the field of photographic materials.

Conclusion

Shoji Oka’s contributions to photographic silver halide photosensitive materials demonstrate the essential role inventors play in advancing technology. His patent highlights the importance of continuous innovation in improving existing materials and processes within the industry. Oka's work, alongside his esteemed colleagues, continues to inspire future developments in photographic technology.

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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