Tokyo, Japan

Masafumi Nakagawa

This inventor holds 8 USPTO granted patents and 14 published patent applications and 1 EPO patent. Top assignees: Nippon Telegraph and Telephone Corporation, Nippon Sheet Glass Company, Limited, Ntt Corporation. Active years: 2008-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masafumi Nakagawa. Retrieved from https://idiyas.com/inventor/masafumi-nakagawa

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

USPTO Granted Patents = 8 

% Patents Active = 87.5

 

Average Co-Inventor Count = 2.9

ph-index = 1

Forward Citations = 11(Granted Patents)


Location History:

  • Tokyo, JP (2008 - 2024)
  • Musashino, JP (2024)

Company Filing History:


Years Active: 2008-2025

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8 patents (USPTO):Explore Patents

Title: Masafumi Nakagawa: Innovator in Unmanned Aerial Vehicles

Introduction

Masafumi Nakagawa is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of unmanned aerial vehicles (UAVs) and has been awarded 8 patents for his innovative designs and methods. His work focuses on enhancing the capabilities of UAVs, particularly in challenging environments.

Latest Patents

One of Nakagawa's latest patents is for an unmanned aerial vehicle and control method designed to accurately estimate its position even inside a manhole. This crewless aircraft is equipped with a camera sensor that captures images of the manhole opening and a plurality of rangefinders that measure distances to surfaces within the manhole. The control unit utilizes recognition information from the camera and distance data from the rangefinders to estimate the UAV's position effectively. Another notable patent is for a propeller guard, which features an upper frame, a base frame, and a curved frame that connects the two, providing enhanced safety for UAV operations.

Career Highlights

Throughout his career, Nakagawa has worked with notable companies such as Nippon Telegraph and Telephone Corporation and Nippon Sheet Glass Company, Limited. His experience in these organizations has contributed to his expertise in developing advanced technologies in the UAV sector.

Collaborations

Masafumi Nakagawa has collaborated with talented individuals in his field, including Atsushi Aratake and Kazuaki Watanabe. These partnerships have fostered innovation and have led to the successful development of his patented technologies.

Conclusion

Masafumi Nakagawa's contributions to the field of unmanned aerial vehicles demonstrate his commitment to innovation and technology. His patents reflect a deep understanding of the challenges faced in UAV operations, particularly in confined spaces. His work continues to influence the future of aerial technology.

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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