Tochigi, Japan

Genshin Kojima

This inventor holds 1 USPTO granted patent. Top assignee: Nippon Piston Ring Co., Ltd.. Active years: 2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Genshin Kojima. Retrieved from https://idiyas.com/inventor/genshin-kojima

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 = 6(Granted Patents)


Company Filing History:


Years Active: 2001

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1 patent (USPTO):Explore Patents

Title: Genshin Kojima: Innovator in Cylinder Liner Technology

Introduction

Genshin Kojima, hailing from Tochigi-ken, Japan, is an accomplished inventor known for his innovative contributions to the field of automotive components. With a focus on enhancing performance through precision engineering, Kojima has secured a prominent patent that reflects his expertise in cylinder liner technology.

Latest Patents

Kojima's key patent is for a cylinder liner that is uniquely formed with cross-hatching grooves. This invention comprises a cylinder liner made from cast iron, featuring an inner peripheral surface that undergoes honing to create cross-hatching grooves. The result is a surface roughness that ranges from 0.4 μmR to 0.8 μmR. Additionally, the inner peripheral surface boasts a graphite open phase rate of no less than 80%, further optimizing its performance for automotive applications.

Career Highlights

Currently, Kojima contributes his skills and expertise at Nippon Piston Ring Co., Ltd., a company recognized for its commitment to innovation in piston ring technology. Through his work, Kojima aims to improve engine efficiency and durability, making significant strides in the automotive industry.

Collaborations

Throughout his career, Kojima has collaborated with notable colleagues, including Fujio Anzai and Munehiko Doi. Their collective efforts have fostered an environment of innovation at Nippon Piston Ring Co., Ltd., ensuring the continuous development of high-quality automotive components.

Conclusion

Genshin Kojima's dedication to innovation and engineering excellence has positioned him as a significant figure in the field of automotive technology. His patented cylinder liner with cross-hatching grooves demonstrates his ability to enhance performance and reliability in engine components. As Kojima continues to work alongside talented collaborators, the future of automotive engineering looks promising.

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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