Suntou-gun, Japan

Yoshifumi Hirao

This inventor holds 1 USPTO granted patent and 1 published patent application. Top assignee: Toyota Jidosha Kabushiki Kaisha. Active years: 2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshifumi Hirao. Retrieved from https://idiyas.com/inventor/yoshifumi-hirao

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

Calculating rank
USPTO Granted Patents = 1 

Average Co-Inventor Count = 3.0

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 2012

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1 patent (USPTO):Explore Patents

Title: Innovations by Yoshifumi Hirao

Introduction

Yoshifumi Hirao is a notable inventor based in Sunto-gun, Japan. He has made significant contributions to the field of fuel cell technology. His innovative approach focuses on enhancing hydrogen safety while simplifying the configuration of fuel cell systems.

Latest Patents

Hirao holds a patent for a fuel cell system that effectively disposes of an odorant. This system ensures enhanced hydrogen safety through a straightforward design. The hydrogenation device, positioned between a fuel tank and a fuel cell, incorporates a hydrogenation catalyst for hydrogenating the odorant. This innovation represents a crucial step forward in fuel cell technology.

Career Highlights

Yoshifumi Hirao is associated with Toyota Jidosha Kabushiki Kaisha, a leading automotive manufacturer. His work at Toyota has allowed him to contribute to advancements in hydrogen fuel technology. Hirao's dedication to innovation has positioned him as a key figure in the development of safer fuel cell systems.

Collaborations

Hirao has collaborated with notable colleagues, including Katsuhiko Oshikawa and Hideo Naohara. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and expertise in fuel cell technology.

Conclusion

Yoshifumi Hirao's contributions to fuel cell technology highlight his innovative spirit and commitment to safety. His patent for a fuel cell system demonstrates the potential for advancements in hydrogen safety and efficiency. Hirao's work continues to influence the future of fuel cell applications.

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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