Hiroshima, Japan

Ryoji Funahashi

This inventor holds 1 USPTO granted patent. Top assignee: Mazda Motor Corporation. Active years: 2009.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ryoji Funahashi. Retrieved from https://idiyas.com/inventor/ryoji-funahashi-2ucjagve

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

Calculating rank

Average Co-Inventor Count = 6.0

ph-index = 1

Forward Citations = 1(Granted Patents)


Company Filing History:


Years Active: 2009

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1 patent (USPTO):Explore Patents

Title: Ryoji Funahashi: Innovator in Automotive Safety

Introduction

Ryoji Funahashi is a notable inventor based in Hiroshima, Japan. He has made significant contributions to automotive safety through his innovative designs. His work primarily focuses on enhancing driver protection in vehicles.

Latest Patents

One of Ryoji Funahashi's key patents is for a steering wheel equipped with an airbag device. This invention features a ring portion of the steering wheel that is inclined relative to the vertical direction at an angle between 40 and 90 degrees. The bag portion of the airbag is designed to be larger than the ring portion, ensuring it covers the ring when the airbag inflates. This design allows for the effective performance of the so-called donut type airbag, significantly improving driver safety.

Career Highlights

Ryoji Funahashi is associated with Mazda Motor Corporation, where he has been instrumental in developing innovative automotive safety features. His work has contributed to the advancement of vehicle safety standards, making a positive impact on the industry.

Collaborations

He has collaborated with talented coworkers such as Ippei Yamachi and Naoki Kaneko. Their combined efforts have led to the successful development of various safety technologies in the automotive field.

Conclusion

Ryoji Funahashi's contributions to automotive safety through his innovative designs, particularly in airbag technology, highlight his importance as an inventor. His work continues to influence the industry and enhance driver protection.

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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