Toyota, Japan

Shigeharu Nakai

This inventor holds 3 USPTO granted patents. Top assignees: Araco Kabushiki Kaisha, Toyota Jidosha Kabushiki Kaisha, Bridgestone Corporation. Active years: 1979-1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeharu Nakai. Retrieved from https://idiyas.com/inventor/shigeharu-nakai

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 = 3.7

ph-index = 3

Forward Citations = 129(Granted Patents)


Company Filing History:


Years Active: 1979-1999

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3 patents (USPTO):Explore Patents

Title: Shigeharu Nakai: Innovator in Seat Safety Technology

Introduction

Shigeharu Nakai is a notable inventor based in Toyota, Japan. He has made significant contributions to the field of automotive safety, particularly in the design of seat structures that enhance passenger protection during side impacts. With a total of three patents to his name, Nakai's work reflects a commitment to innovation and safety in vehicle design.

Latest Patents

Nakai's latest patents include a side air bag-carrying seat structure and a seat structure having a side impact air bag apparatus. The latter patent describes a seat structure designed to activate an air bag apparatus during a side impact. This innovative design ensures that an air bag inflates between the vehicle's side and the occupant, providing crucial protection. The seat structure incorporates a sheet member that is harder to stretch than the side seat surface layer, enhancing the effectiveness of the air bag deployment.

Career Highlights

Throughout his career, Shigeharu Nakai has worked with prominent companies in the automotive industry, including Toyota Motor Corporation and Araco Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in vehicle safety.

Collaborations

Nakai has collaborated with talented individuals such as Hisaaki Kato and Yasunori Hasegawa. These partnerships have fostered a creative environment that has led to the development of groundbreaking safety technologies.

Conclusion

Shigeharu Nakai's contributions to automotive safety through his innovative seat structures demonstrate his dedication to enhancing passenger protection. His patents reflect a forward-thinking approach to vehicle design, ensuring that safety remains a top priority in the automotive industry.

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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