Warabi, Japan

Kei Fujii

This inventor holds 2 USPTO granted patents. Top assignee: Nissan Motor Company Limited. Active years: 2011-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kei Fujii. Retrieved from https://idiyas.com/inventor/kei-fujii-vc4szu6k

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

% Patents Active = 50.0

Average Co-Inventor Count = 6.9

ph-index = 1

Forward Citations = 1(Granted Patents)


Company Filing History:


Years Active: 2011-2012

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2 patents (USPTO):Explore Patents

Title: Kei Fujii - Innovator in Sprayed Film and Honing Technologies

Introduction

Kei Fujii is a notable inventor based in Warabi, Japan. He has made significant contributions to the fields of sprayed film technology and honing methods. With a total of 2 patents, his work reflects a commitment to innovation and efficiency in manufacturing processes.

Latest Patents

Fujii's latest patents include a method of forming a sprayed film on the inner surface of a bore. This innovative method involves increasing the thickness of the sprayed film in a predetermined region to ensure uniformity across the entire thickness. The process utilizes a spraying gun that moves in an axial direction while rotating inside the bore. Additionally, air is sucked out from inside the bore to prevent foreign materials from contaminating the sprayed film. The design addresses the challenge of maintaining consistent thickness while minimizing working time and material usage.

Another significant patent is a honing method and honing control device suitable for large processing areas. This device includes a grinder and an expansion member that is placed within the processing hole of a workpiece. The honing process is completed when the expanding movement of the grinder reaches a target expansion amount established by a master gauge, ensuring precision in the honing of inner surfaces.

Career Highlights

Kei Fujii is currently employed at Nissan Motor Company Limited, where he applies his expertise in engineering and innovation. His work at Nissan has allowed him to develop and refine technologies that enhance manufacturing processes and product quality.

Collaborations

Fujii has collaborated with notable coworkers, including Daisuke Terada and Eiji Shiotani. These partnerships have contributed to the advancement of their respective projects and innovations within the company.

Conclusion

Kei Fujii's contributions to sprayed film technology and honing methods demonstrate his dedication to innovation in engineering. His patents reflect a deep understanding of manufacturing processes and a commitment to improving efficiency and quality.

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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