Sakai, Japan

Kouichi Sugahara

This inventor holds 1 USPTO granted patent. Top assignee: Kubota Corporation. Active years: 1978.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kouichi Sugahara. Retrieved from https://idiyas.com/inventor/kouichi-sugahara

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 = 21(Granted Patents)


Company Filing History:


Years Active: 1978

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1 patent (USPTO):Explore Patents

Title: The Innovative Contributions of Kouichi Sugahara

Introduction

Kouichi Sugahara, based in Sakai, Japan, is a prominent inventor known for his innovative contributions to engine technology. His work primarily focuses on enhancing the efficiency of combustion chambers, particularly for compact engines. Sugahara's inventive spirit has led him to obtain one patent, reflecting his significant input in the field.

Latest Patents

Sugahara's notable patent pertains to a combustion chamber designed for compact engines of the side valve type. The innovation revolves around the ignition plug's spark gap, which is strategically positioned to oppose a bundle of streams of the air-fuel mixture drawn from the intake valve. This configuration is meticulously aligned on a line extending from the center of the cylinder to a midpoint between the intake and exhaust valves. Additionally, the spark gap is placed approximately midway between the center and this midpoint, ensuring automatic cleaning of the spark gap and surrounding area with each piston stroke.

Career Highlights

Sugahara's professional journey is significantly marked by his association with Kubota Corporation, a leading company recognized for its advancements in machinery and engine technology. His dedication to improving engine performance and reliability is evident through his patent and continuous contributions to the field.

Collaborations

Throughout his career, Sugahara has worked alongside esteemed colleagues, including Kiyonobu Iida and Yoshio Tani. These collaborations have further enriched his innovative endeavors and expanded the scope of his contributions to engine development.

Conclusion

Kouichi Sugahara stands out as an influential inventor in the realm of engine technology. His patent on a combustion chamber for compact engines exemplifies his commitment to advancing automotive innovation. With collaboration alongside talented professionals, Sugahara continues to inspire future generations of inventors and engineers.

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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