Kobe, Japan

Koichi Nunokawa

This inventor holds 2 USPTO granted patents and 1 EPO patent. Top assignee: Mitsubishi Heavy Industries Limited. Active years: 2004-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Koichi Nunokawa. Retrieved from https://idiyas.com/inventor/koichi-nunokawa

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 = 2.0

ph-index = 2

Forward Citations = 34(Granted Patents)


Company Filing History:


Years Active: 2004-2007

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2 patents (USPTO):Explore Patents

Title: Koichi Nunokawa: Innovator in Nuclear Reactor Technology

Introduction

Koichi Nunokawa is a notable inventor based in Kobe, Japan. He has made significant contributions to the field of nuclear reactor technology, holding two patents that showcase his innovative approach to engineering.

Latest Patents

Nunokawa's latest patents include a fuel assembly and thimble screw designed for nuclear reactors. The fuel assembly features a bottom nozzle set on a lower core plate, a top nozzle with a hold-down spring, and guide thimbles that direct control rods toward the lower core plate. Each guide thimble is equipped with a dashpot to reduce the fall velocity of the control rods. The thimble screw connects the guide thimbles to the bottom nozzle, and a drain hole extends through each thimble screw. The design ensures optimal performance and safety in nuclear reactor operations.

Career Highlights

Koichi Nunokawa is currently employed at Mitsubishi Heavy Industries Limited, a leading company in the engineering and manufacturing sector. His work focuses on enhancing the safety and efficiency of nuclear reactors through innovative designs and technologies.

Collaborations

Nunokawa collaborates with Masahiko Yamada, a fellow engineer, to further advance their projects in nuclear technology. Their teamwork exemplifies the importance of collaboration in driving innovation.

Conclusion

Koichi Nunokawa's contributions to nuclear reactor technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence the safety and efficiency of nuclear energy systems.

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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