Iwata, Japan

Toshihiko Uenaga

This inventor holds 1 USPTO granted patent. Top assignees: Ngk Spark Plug Company, Limited, Yamaha Hatsudoki Kabushiki Kaisha. Active years: 1980.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshihiko Uenaga. Retrieved from https://idiyas.com/inventor/toshihiko-uenaga

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 = 4.0

ph-index = 1

Forward Citations = 7(Granted Patents)


Company Filing History:


Years Active: 1980

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1 patent (USPTO):Explore Patents

Title: Toshihiko Uenaga: Inventor in Ignition Technology

Introduction

Toshihiko Uenaga is an inventor associated with Iwata, Japan. His patent work includes an ignition circuit designed for self-purifying creeping discharge spark plugs.

Latest Patents

Uenaga is credited with 1 patent: “Ignition Circuit for Self-Purifying Creeping Discharge Spark Plugs.” The invention describes a spark plug with center and ground electrodes, a spark gap with a creeping surface, a capacitor connected in parallel with the gap, and a series impedance element. The circuit is designed to let the capacitor’s discharged electric charge move without obstruction, supporting the spark plug’s self-purifying operation.

Career Highlights

Uenaga’s professional associations include NGK Spark Plug Company, Limited, and Yamaha Hatsudoki Kabushiki Kaisha. His patent reflects work on ignition circuitry and spark-plug design.

Collaborations

His listed coworkers include Kanemitsu Nishio and Fumio Zega.

Conclusion

Toshihiko Uenaga’s recorded invention focuses on an ignition circuit that supports self-purifying creeping discharge spark plugs, connecting his patent work with his associations in the spark-plug and motorcycle industries.

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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