Tsukuba, Japan

Seiji Hayashi

This inventor holds 1 USPTO granted patent. Top assignee: Ministry of International Trade and Industry, Agency of Industrial. Active years: 1997.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Seiji Hayashi. Retrieved from https://idiyas.com/inventor/seiji-hayashi-abkkhkwf

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 1

Forward Citations = 3(Granted Patents)


Company Filing History:


Years Active: 1997

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1 patent (USPTO):Explore Patents

Title: Seiji Hayashi: Innovator in Catalytic Converter Heating Systems

Introduction

Seiji Hayashi is a notable inventor based in Tsukuba, Japan. He has made significant contributions to the field of automotive technology, particularly in the development of heating systems for catalytic converters. His innovative approach addresses the challenges associated with activating catalysts in multi-cylinder engines.

Latest Patents

Hayashi holds a patent for a heating system designed for catalytic converters in multi-cylinder, spark-ignition engines. This system operates by utilizing half of the engine's cylinders to create a combustible gas mixture, while the other half functions as air blowers. The unique design allows for rapid heating and activation of the catalyst without the need for a special fuel supply system or additional air blowers. This innovation enhances the efficiency of catalytic converters, contributing to improved vehicle emissions control.

Career Highlights

Seiji Hayashi is affiliated with the Ministry of International Trade and Industry, Agency of Industrial. His work in this organization has allowed him to focus on advancing industrial technologies and promoting innovation within the automotive sector. His expertise and dedication have positioned him as a key figure in the development of environmentally friendly automotive solutions.

Collaborations

Hayashi has collaborated with notable colleagues, including Motoaki Akai and Nobuo Iwai. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and the advancement of innovative technologies.

Conclusion

Seiji Hayashi's contributions to the field of catalytic converter heating systems exemplify his commitment to innovation and environmental sustainability. His work not only enhances engine performance but also plays a crucial role in reducing harmful emissions.

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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