Tokyo, Japan

Masamichi Idonuma

This inventor holds 1 USPTO granted patent and 1 published patent application. Top assignee: Hitachi Ge Vernova Nuclear Energy, Ltd.. Active years: 2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masamichi Idonuma. Retrieved from https://idiyas.com/inventor/masamichi-idonuma

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

USPTO Granted Patents = 1 

% Patents Active = 100.0

Average Co-Inventor Count = 9.0

ph-index = 1


Company Filing History:


Years Active: 2026

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1 patent (USPTO):Explore Patents

Title: Masamichi Idonuma: Innovator in Electrical Penetration Technology

Introduction

Masamichi Idonuma is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of electrical penetration technology, particularly in applications for nuclear power plants. His innovative approach addresses critical safety concerns in severe accident scenarios.

Latest Patents

Masamichi Idonuma holds a patent for an electrical penetration designed to function effectively in nuclear power plants under severe accident conditions. This patent includes a tubular sleeve member, multiple insulating seal members arranged within the sleeve, wiring members extending along the sleeve, and outer seal members positioned at the outermost portions of the insulating seal members. The wiring members are insulated with materials identical to those used for the outer seal members, ensuring reliability and safety in critical environments. He has 1 patent to his name.

Career Highlights

Idonuma is currently employed at Hitachi Ge Vernova Nuclear Energy, Ltd., where he continues to develop innovative solutions for the nuclear energy sector. His work focuses on enhancing the safety and efficiency of electrical systems in nuclear facilities.

Collaborations

Throughout his career, Masamichi Idonuma has collaborated with esteemed colleagues such as Yasuyuki Goto and Teppei Kubota. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Masamichi Idonuma's contributions to electrical penetration technology are vital for the advancement of safety in nuclear power plants. His innovative designs and collaborative efforts continue to shape the future of energy 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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