Tokyo, Japan

Katunori Higashi

This inventor holds 2 USPTO granted patents. Top assignee: Nissan Motor Company Limited. Active years: 1984.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Katunori Higashi. Retrieved from https://idiyas.com/inventor/katunori-higashi

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 = 1.3

ph-index = 2

Forward Citations = 17(Granted Patents)


Company Filing History:


Years Active: 1984

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2 patents (USPTO):Explore Patents

Title: Katunori Higashi: Innovator in Exhaust Gas Purification Technologies

Introduction

Katunori Higashi is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of automotive technology, particularly in exhaust gas purification systems. With a total of 2 patents, his work focuses on improving the efficiency and effectiveness of catalytic converters and exhaust gas recirculation systems.

Latest Patents

Higashi's latest patents include a catalytic converter designed for exhaust gas purification. This innovative device is adapted to retard spark timing to increase the temperature of the converter catalyst when a temperature sensor detects low exhaust temperatures. The system utilizes a vacuum advance mechanism that responds to intake manifold vacuum, allowing for adjustments in spark timing to enhance catalyst performance.

Another significant patent is his exhaust gas recirculation system for internal combustion engines. This system includes mechanisms to conduct a portion of exhaust gases into the intake passage while preventing backflow toward the throttle valve. This design protects the throttle valve's response accuracy from being compromised by exhaust gas contaminants.

Career Highlights

Katunori Higashi is currently employed at Nissan Motor Company Limited, where he continues to innovate in automotive technologies. His work has been instrumental in developing systems that reduce harmful emissions and improve engine performance.

Collaborations

Higashi collaborates with fellow inventor Kazuo Toryu, contributing to advancements in automotive engineering and technology.

Conclusion

Katunori Higashi's contributions to exhaust gas purification technologies reflect his commitment to innovation in the automotive industry. His patents demonstrate a focus on enhancing engine efficiency and reducing environmental impact.

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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