Zushi, Japan

Ryuji Fujieda

This inventor holds 4 USPTO granted patents, plus 2 CIPO patents and 3 EPO patents. Top assignee: Nissan Motor Company Limited. Active years: 2016-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ryuji Fujieda. Retrieved from https://idiyas.com/inventor/ryuji-fujieda

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 = 1


Location History:

  • Zushi, JP (2016 - 2017)
  • Kanagawa, JP (2020)

Company Filing History:


Years Active: 2016-2020

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4 patents (USPTO):Explore Patents

Title: Ryuji Fujieda: Innovator in Fuel Cell Technology

Introduction

Ryuji Fujieda is a prominent inventor based in Zushi, Japan. He has made significant contributions to the field of fuel cell technology, holding a total of 4 patents. His work focuses on fluid distribution devices that enhance the efficiency and functionality of fuel cells.

Latest Patents

Fujieda's latest patents include a fluid distribution device designed for distributing at least two fluids in a fuel cell. This innovative device comprises a block body, first and second external manifolds, and first and second communicating portions. The block body features a side surface that receives the fuel cell, while the first external manifold is positioned adjacent to this surface. The second external manifold is located away from the side surface, and both manifolds partially overlap when viewed from the side. The second external manifold includes an extension portion that does not overlap with the first external manifold. The first communicating portion has a hole that allows a first fluid to communicate with the first external manifold, while the second communicating portion has a hole that enables a second fluid to communicate with the extension portion.

Another notable patent involves a fuel cell that contains multiple fluid-supplying and fluid-discharging internal manifolds for each fluid. The external manifolds connect to these internal manifolds, ensuring efficient fluid distribution. The respective fluid-supplying and fluid-discharging external manifolds are arranged approximately in parallel, extending in the width direction of the cell laminate body.

Career Highlights

Ryuji Fujieda is currently employed at Nissan Motor Company Limited, where he continues to innovate in the field of fuel cell technology. His work has been instrumental in advancing the capabilities of fuel cells, making them more efficient and reliable for various applications.

Collaborations

Fujieda has collaborated with notable colleagues, including Takuya Hasegawa, to further enhance the development of fuel cell technologies. Their combined expertise has contributed to the successful implementation of innovative solutions in the automotive industry.

Conclusion

Ryuji Fujieda is a key figure in the advancement of fuel cell technology, with a focus on fluid distribution devices. His contributions have the potential to significantly impact the future of energy solutions in the automotive sector.

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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