Kanagawa, Japan

Touru Ishii

This inventor holds 3 USPTO granted patents. Top assignee: Fuji Xerox Co., Ltd.. Active years: 1989.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Touru Ishii. Retrieved from https://idiyas.com/inventor/touru-ishii

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 = 2

Forward Citations = 16(Granted Patents)


Company Filing History:


Years Active: 1989

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3 patents (USPTO):Explore Patents

Title: Touru Ishii - Pioneering Innovations in Electrophotography

Introduction: Touru Ishii, a distinguished inventor based in Kanagawa, Japan, has made significant contributions to the field of electrophotography. With a total of 3 patents to his name, Ishii's groundbreaking work has revolutionized the industry.

Latest Patents: Among his latest patents is the development of bisazo compounds that exhibit exceptional electrophotographic properties. These compounds, represented by a specific formula, have paved the way for enhanced processes in electrophotography. Additionally, Ishii's innovation extends to an electrophotographic photoreceptor that boasts superior sensitivity and durability, thanks to the incorporation of bisazo compounds in its design.

Career Highlights: Ishii is a key figure at Fuji Xerox Co., Ltd., a renowned company at the forefront of technological advancements in Japan. His role at the company has been instrumental in driving forward-thinking research and development initiatives in the realm of electrophotography. Through his inventive spirit and dedication to excellence, Ishii continues to shape the future of the industry.

Collaborations: In his professional journey, Ishii has collaborated closely with esteemed colleagues such as Yutaka Akasaki and Akihiko Tokita. Together, they have synergized their expertise to create innovative solutions that push the boundaries of electrophotography and set new standards for quality and performance.

Conclusion: Touru Ishii's relentless pursuit of innovation and his remarkable contributions to the field of electrophotography underscore his status as a trailblazing inventor. With a portfolio of patents that reflect his ingenuity and technical prowess, Ishii remains a driving force behind transformative advancements in the industry.

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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