Hitachi, Japan

Tetsuya Fujii

This inventor holds 1 USPTO granted patent. Top assignee: Hitachi Chemical Company, Ltd.. Active years: 1991.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tetsuya Fujii. Retrieved from https://idiyas.com/inventor/tetsuya-fujii-95wufysd

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 = 8.0

ph-index = 1

Forward Citations = 16(Granted Patents)


Company Filing History:


Years Active: 1991

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1 patent (USPTO):Explore Patents

Title: Inventor Tetsuya Fujii: Innovating Electrophotographic Solutions

Introduction

Tetsuya Fujii is an accomplished inventor based in Hitachi, Japan, known for his significant contribution to the field of electrophotography. His innovative approaches have led to advances in dry toner technology, enhancing image quality and reliability in printing.

Latest Patents

Fujii holds a patent for a groundbreaking invention titled "Dry toner, dry developer and process for forming electrophotographic." This patent introduces a unique dry toner composition that includes a binder resin, a colorant, and specialized charge control agents. These agents, which consist of a special metal complex of oxycarboxylic acid and a metal complex of azo compounds, allow for high-quality image production while minimizing toner fly and maintaining performance over extended usage.

Career Highlights

Fujii is affiliated with Hitachi Chemical Company, Ltd., where he applies his expertise to push the boundaries of printing technology. His focus on developing efficient and effective dry toner solutions has positioned him as a key player in the company's research and development efforts.

Collaborations

Throughout his career, Tetsuya Fujii has collaborated with notable colleagues, including Yuugo Kumagai and Ryouji Tan. These partnerships reflect a strong commitment to innovation and excellence in the field of electrophotography and materials science.

Conclusion

Tetsuya Fujii's contributions to the development of dry toners and electrophotographic processes signify an important leap in printing technology. His inventive spirit and collaborative work with peers continue to inspire advancements that enhance the capabilities of modern printing solutions.

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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