Fujisawa, Japan

Takeshi Yamagiwa

This inventor holds 1 USPTO granted patent. Top assignee: Nissan Motor Company Limited. Active years: 1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takeshi Yamagiwa. Retrieved from https://idiyas.com/inventor/takeshi-yamagiwa-pwefefi4

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 = 5(Granted Patents)


Company Filing History:


Years Active: 1994

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1 patent (USPTO):Explore Patents

Title: Takeshi Yamagiwa: Innovator in Suction Systems for Internal Combustion Engines

Introduction

Takeshi Yamagiwa is a notable inventor based in Fujisawa, Japan. He has made significant contributions to the field of internal combustion engines, particularly with his innovative suction system design. His work is recognized for enhancing engine performance and efficiency.

Latest Patents

Yamagiwa holds a patent for a suction system specifically designed for V-type engines. This system includes branch pipes that cross parallel to each other for effective communication with the engine cylinders. It features two aggregate portions that are strategically placed to aggregate the branch pipes, allowing for communication with the cylinders regardless of the ignition order. Additionally, the design incorporates two guide pipes connected to the aggregate portions and a communicating pipe positioned over the branch pipes.

Career Highlights

Takeshi Yamagiwa is currently employed at Nissan Motor Company Limited, where he continues to innovate and contribute to automotive technology. His expertise in engine design has positioned him as a valuable asset to the company.

Collaborations

Yamagiwa has worked alongside talented colleagues such as Suehiro Urabe and Isaya Matsuo, contributing to various projects within the automotive sector.

Conclusion

Takeshi Yamagiwa's innovative work in suction systems for internal combustion engines exemplifies his commitment to advancing automotive technology. His contributions are vital to improving engine performance and efficiency in modern vehicles.

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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