Fujisawa, Japan

Kouhei Yamaishi

This inventor holds 1 USPTO granted patent. Top assignee: Isuzu Motors Limited. Active years: 2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kouhei Yamaishi. Retrieved from https://idiyas.com/inventor/kouhei-yamaishi

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 = 6.0

ph-index = 1


Company Filing History:


Years Active: 2000

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1 patent (USPTO):Explore Patents

Title: Kouhei Yamaishi - Innovator in Cylinder Head Structures

Introduction

Kouhei Yamaishi is a notable inventor based in Fujisawa, Japan. He has made significant contributions to the field of engine design, particularly with his innovative cylinder head structure. His work has implications for improving engine performance and durability.

Latest Patents

Yamaishi holds a patent for a cylinder head structure that includes grooves in the top surface of the cylinder head body. These grooves surround the fuel injection nozzle hole and are designed to prevent cracking caused by radiant tension when cylinder head bolts are tightened. This innovative design enhances the reliability of engine components.

Career Highlights

Yamaishi is associated with Isuzu Motors Limited, where he has applied his expertise in engine technology. His work has been instrumental in advancing the design and functionality of engine components, contributing to the overall performance of vehicles.

Collaborations

Some of his coworkers include Makoto Takeuchi and Tomoaki Kakihara. Their collaborative efforts have likely played a role in the development of innovative solutions within the company.

Conclusion

Kouhei Yamaishi's contributions to engine design through his patented cylinder head structure demonstrate his commitment to innovation in the automotive industry. His work continues to influence the development of more efficient and reliable engines.

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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