Tokyo, Japan

Ryoji Fujihara

This inventor holds 3 USPTO granted patents. Top assignees: Nissan Motor Company Limited, Ohi Seisakusho Co., Ltd.. Active years: 1988-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ryoji Fujihara. Retrieved from https://idiyas.com/inventor/ryoji-fujihara

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


% Patents Active = 100.0

Average Co-Inventor Count = 4.6

ph-index = 3

Forward Citations = 33(Granted Patents)


Company Filing History:


Years Active: 1988-1992

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3 patents (USPTO):Explore Patents

Title: Ryoji Fujihara: Innovator in Vehicle Roof Technology

Introduction

Ryoji Fujihara is a notable inventor based in Tokyo, Japan. He has made significant contributions to the automotive industry, particularly in the area of vehicle roof technology. With a total of 3 patents to his name, Fujihara's innovations have enhanced the functionality and safety of detachable roofs in vehicles.

Latest Patents

Fujihara's latest patents include a lock device for a detachable roof and a vehicle roof structure with removable roof lids. The lock device is designed to securely attach a detachable roof to a car body. It features a housing mounted to the roof, a handle lever with a locking mechanism, and a guide pin that ensures the handle lever remains in the lock position until intentionally disengaged. The vehicle roof structure consists of a frame with left and right openings, each fitted with removable lids that conceal the center beam, enhancing the vehicle's aesthetic and functional appeal.

Career Highlights

Throughout his career, Ryoji Fujihara has worked with prominent companies such as Nissan Motor Company Limited and Ohi Seisakusho Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in automotive design and engineering.

Collaborations

Fujihara has collaborated with talented individuals in the field, including Kazuaki Furuse and Kouichi Yagami. These partnerships have contributed to the successful development of his patented technologies.

Conclusion

Ryoji Fujihara's work in vehicle roof technology exemplifies the impact of innovation in the automotive industry. His patents reflect a commitment to enhancing vehicle design and safety, making him a significant figure in his field.

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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