Tokyo, Japan

Tadashi Nagai

This inventor holds 8 USPTO granted patents. Top assignees: Calsonic Kansei Corporation, Suntory Limited. Active years: 1991-2008.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tadashi Nagai. Retrieved from https://idiyas.com/inventor/tadashi-nagai-qemwssh9

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


% Patents Active = 62.5

Average Co-Inventor Count = 1.8

ph-index = 6

Forward Citations = 97(Granted Patents)


Location History:

  • Kanagawa, JP (2003)
  • Tokyo, JP (1991 - 2008)

Company Filing History:


Years Active: 1991-2008

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8 patents (USPTO):Explore Patents

Title: Innovations of Tadashi Nagai

Introduction

Tadashi Nagai is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of engineering, particularly in the automotive sector. With a total of 8 patents to his name, Nagai has developed innovative solutions that enhance vehicle performance and efficiency.

Latest Patents

One of his latest inventions is an exhaust gas control valve. This valve includes a valve seat and a valve plate with two exhaust gas pressure receiving areas. The design allows for effective control of exhaust gas flow during different engine speeds. In a closed state, low engine speed pressure acts on the first area to shut the opening. In an intermediate state, pressure during middle engine speeds acts on both areas to partially open the valve. Finally, in an opening state, high engine speed pressure allows gas to pass through the valve. Another notable patent is a flexible tube designed to reduce vibration in interlock pipes. The small-diameter part in the bellows portion minimizes the distance between fulcrums, thereby decreasing vibration amplitude and preventing contact with the bellows portion.

Career Highlights

Throughout his career, Tadashi Nagai has worked with notable companies such as Calsonic Kansei Corporation and Suntory Limited. His experience in these organizations has allowed him to refine his skills and contribute to various innovative projects.

Collaborations

Nagai has collaborated with talented individuals in his field, including Kai Shiraishi and Yayoi Nademoto. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Tadashi Nagai's contributions to innovation in the automotive industry are commendable. His patents reflect a deep understanding of engineering principles and a commitment to improving vehicle performance. His work continues to influence the field 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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