Nagaokakyo, Japan

Yaichi Ishida

This inventor holds 1 USPTO granted patent. Top assignee: Mitsubishi Paper Mills Limited. Active years: 1977.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yaichi Ishida. Retrieved from https://idiyas.com/inventor/yaichi-ishida

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 = 3.0

ph-index = 1

Forward Citations = 10(Granted Patents)


Company Filing History:


Years Active: 1977

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1 patent (USPTO):Explore Patents

Title: Yaichi Ishida: Innovator in Color Photographic Materials

Introduction

Yaichi Ishida is a notable inventor based in Nagaokakyo, Japan. He has made significant contributions to the field of photographic technology, particularly in the development of light-sensitive materials.

Latest Patents

Yaichi Ishida holds a patent for a color photographic light-sensitive material. This invention incorporates a tocopherol derivative as a light-fading stabilizer in the photosensitive layer. The stabilizer effectively prevents fading and discoloration of the final color image, as well as the non-color-developed portions. Additionally, it helps to avoid the formation of fog, while demonstrating excellent dispersion stability.

Career Highlights

Ishida is associated with Mitsubishi Paper Mills Limited, where he has applied his expertise in photographic materials. His work has contributed to advancements in the quality and longevity of photographic images.

Collaborations

Throughout his career, Yaichi Ishida has collaborated with notable colleagues, including Hiroshi Ikeda and Shigetoshi Hiraishi. These partnerships have fostered innovation and development in their respective fields.

Conclusion

Yaichi Ishida's contributions to color photographic materials highlight his role as an influential inventor. His patented technology continues to impact the photography industry positively.

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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