Kofu, Japan

Tomio Yoneyama

This inventor holds 1 USPTO granted patent. Top assignees: Japan Atomic Energy Institute, Shindengen Electric Manufacturing Company Limited, Yamanashi Electronics Co., Ltd.. Active years: 1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tomio Yoneyama. Retrieved from https://idiyas.com/inventor/tomio-yoneyama-o9255vlr

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 = 6.0

ph-index = 1

Forward Citations = 7(Granted Patents)


Company Filing History:


Years Active: 1990

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1 patent (USPTO):Explore Patents

Title: The Innovations of Tomio Yoneyama

Introduction

Tomio Yoneyama is a notable inventor recognized for his contributions to the field of electrophotography. He is based in Kofu, Japan, and has been instrumental in developing technologies that enhance the performance of photoreceptors used in printing and copying devices. His innovative work has led to the filing of one significant patent.

Latest Patents

Yoneyama's patent focuses on an electrophotographic photoreceptor. This invention comprises an electrically conductive support, a photoconductive layer, and a protective layer. The protective layer is created through the uncatalyzed hydrolysis of a composition that includes specific epoxysilane, alkylalkoxysilane, and aminosilane compounds. This photoreceptor is particularly advantageous as it resists wear from friction with paper and cleaning members, maintains high resolving power, and performs reliably under high temperature and humidity conditions.

Career Highlights

Throughout his career, Tomio Yoneyama has worked with prominent organizations, including the Japan Atomic Energy Research Institute and Shindengen Electric Manufacturing Company Limited. His experience in these institutions has contributed to his expertise in the field of electrophotography and materials science.

Collaborations

Yoneyama has collaborated with several professionals in his field, including Minoru Kumakura and Isao Kaetsu. These collaborations have likely enriched his research and development efforts, leading to innovative solutions in electrophotographic technology.

Conclusion

Tomio Yoneyama's work in developing advanced electrophotographic photoreceptors showcases his significant contributions to the field of printing technology. His innovative patent reflects a commitment to enhancing the performance and durability of photoreceptors, making a lasting impact on 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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