Nagaokakyo, Japan

Masao Koga

This inventor holds 4 USPTO granted patents. Top assignee: Mitsubishi Paper Mills Limited. Active years: 1986-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masao Koga. Retrieved from https://idiyas.com/inventor/masao-koga-q1arqidy

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 = 2.4

ph-index = 3

Forward Citations = 15(Granted Patents)


Company Filing History:


Years Active: 1986-1993

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4 patents (USPTO):Explore Patents

Title: The Innovations of Masao Koga

Introduction

Masao Koga, an accomplished inventor based in Nagaokakyo, Japan, has made significant contributions to the field of photography through his innovative inventions. With a total of four patents to his name, Koga has demonstrated his expertise in developing methods that enhance image formation, showcasing his commitment to advancing photographic technology.

Latest Patents

Koga's latest patents include a groundbreaking method for image formation that addresses common problems in photographic development. The first patent presents a method that is free from issues such as uneven development and pepper fog, effectively producing photographic characteristics of exceptionally high contrast negative tone. This method employs a stable developer and involves the development of silver halide photographic light-sensitive materials in the presence of specialized compounds, allowing for improved results in photography.

Another notable patent also focuses on developing silver halide photographic photosensitive materials, utilizing compounds that can result in further enhancements to image quality. Koga's inventive techniques revolve around the careful combination of various chemical components, leading to advancements that are beneficial for both amateur and professional photographers.

Career Highlights

Masao Koga is currently associated with Mitsubishi Paper Mills Limited, where he continues to explore new innovations in the field of photographic technology. Throughout his career, Koga has demonstrated a strong dedication to research and development, contributing not only to his own knowledge but also to the growth of his industry.

Collaborations

During his tenure at Mitsubishi Paper Mills Limited, Koga has had the opportunity to collaborate with notable colleagues such as Minoru Ohashi and Akira Tanaka. These collaborations have helped foster a creative environment where innovative ideas can flourish and lead to groundbreaking developments in photography.

Conclusion

Masao Koga stands out as a visionary inventor whose work has significantly impacted the photographic industry. Through his innovative methods of image formation and collaboration with esteemed professionals, Koga continues to pave the way for future advancements in photographic technology. His contributions reflect a dedication to quality and innovation that will resonate within the field for years to come.

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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