Kamiyamada, Japan

Tomoyuki Nagai

This inventor holds 1 USPTO granted patent. Top assignees: Kabushiki Kaisha Yanagisawa Seiki Seisakusho, Kayaba Kogyo Kabushiki Kaisha, Koito Industries, Ltd.. Active years: 1998.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tomoyuki Nagai. Retrieved from https://idiyas.com/inventor/tomoyuki-nagai-19ymstuk

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 = 3.0

ph-index = 1

Forward Citations = 11(Granted Patents)


Company Filing History:


Years Active: 1998

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1 patent (USPTO):Explore Patents

Title: The Innovations of Tomoyuki Nagai

Introduction

Tomoyuki Nagai is a notable inventor based in Kamiyamada-machi, Japan. He has made significant contributions to the field of engineering, particularly with his innovative designs in seat adjustment mechanisms. His work has led to the development of a unique patent that enhances the functionality of back-rests in seating arrangements.

Latest Patents

Nagai holds a patent for a back-rest angle adjusting apparatus. This invention allows for a faster raising speed of the back-rest when it is greatly raised forward beyond the normal angle adjusting range. The apparatus features a cylinder type seat design, where an enlarged diameter portion is constituted in the inner wall of the cylinder, opposed to a piston. A bypass passage is formed between the inner wall of the cylinder and the outer periphery of the piston, enabling communication between the rod side chamber and the head side chamber within the cylinder.

Career Highlights

Throughout his career, Tomoyuki Nagai has worked with prominent companies such as Kayaba Kogyo Kabushiki Kaisha and Yanagisawa Seiki Seisakusho. His experience in these organizations has contributed to his expertise in mechanical engineering and innovation.

Collaborations

Nagai has collaborated with notable coworkers, including Eizi Sunohara and Toshihiko Hidaka. Their combined efforts have fostered a creative environment that has led to advancements in their respective fields.

Conclusion

Tomoyuki Nagai's contributions to the field of engineering, particularly through his patented back-rest angle adjusting apparatus, showcase his innovative spirit and dedication to improving seating technology. His work continues to influence the industry and inspire future inventors.

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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