Toyota, Japan

Junichi Shirahama

This inventor holds 10 USPTO granted patents and 1 published patent application, plus 7 CIPO patents and 2 EPO patents. Top assignees: Toyota Jidosha Kabushiki Kaisha, Nippon Soken, Inc.. Active years: 2011-2015.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Junichi Shirahama. Retrieved from https://idiyas.com/inventor/junichi-shirahama

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

Calculating rank
USPTO Granted Patents = 10 

% Patents Active = 50.0



Average Co-Inventor Count = 2.2

ph-index = 2

Forward Citations = 7(Granted Patents)


Company Filing History:


Years Active: 2011-2015

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10 patents (USPTO):Explore Patents

Title: Junichi Shirahama: Innovator in Fuel Cell Technology

Introduction

Junichi Shirahama is a prominent inventor based in Toyota, Japan. He has made significant contributions to the field of fuel cell technology, holding a total of 10 patents. His innovative work has paved the way for advancements in energy solutions.

Latest Patents

Shirahama's latest patents include a fuel cell, a fuel cell stack, and a method of producing the fuel cell stack. The fuel cell consists of multiple constituent members that are essential for its operation. These members feature first and second positioning portions located on the outer peripheral area, which facilitate proper alignment during the stacking process. In his fuel cell design, one of the separators is positioned opposite another, with an intermediate body placed between them, secured by a cell monitor. The intermediate body extends to the edge of the cell monitor mounting area of one separator. This innovative design incorporates components that hold the electrolyte body, spacers, and seal members, ensuring efficient functionality. The separator's major surface in the cell monitor mounting area is in direct contact with the terminal of the cell monitor, allowing for effective conduction.

Career Highlights

Throughout his career, Junichi Shirahama has worked with notable companies, including Toyota Motor Corporation and Nippon Soken, Inc. His experience in these organizations has contributed to his expertise in fuel cell technology and innovation.

Collaborations

Shirahama has collaborated with esteemed colleagues such as Yoshinori Yamamoto and Tomokazu Hayashi. Their combined efforts have further advanced the field of fuel cell technology.

Conclusion

Junichi Shirahama's contributions to fuel cell technology demonstrate his commitment to innovation and excellence. His patents and collaborations reflect a dedication to advancing energy solutions for a sustainable future.

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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