Kasugai, Japan

Shigemitsu Tokunaga

This inventor holds 1 USPTO granted patent. Top assignee: Tokai Trw & Co., Ltd.. Active years: 1985.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigemitsu Tokunaga. Retrieved from https://idiyas.com/inventor/shigemitsu-tokunaga

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 = 2(Granted Patents)


Company Filing History:


Years Active: 1985

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1 patent (USPTO):Explore Patents

Title: Shigemitsu Tokunaga: Innovator in Power Steering Technology

Introduction

Shigemitsu Tokunaga is a notable inventor based in Kasugai, Japan. He has made significant contributions to automotive technology, particularly in the field of power steering devices. His innovative approach has led to the development of a unique power steering system that enhances vehicle performance and driver control.

Latest Patents

Shigemitsu Tokunaga holds a patent for a power steering device designed for automotive vehicles. This device comprises an engine, a steering pump driven by the engine, an actuator, and a control valve. The control valve regulates the amount and direction of power fluid supplied from the steering pump to the actuator based on the steering operation of the steering wheel. Additionally, the device features a centrifugal clutch that manages power transmission based on vehicle speed, ensuring optimal performance under varying driving conditions. He has 1 patent to his name.

Career Highlights

Tokunaga has worked with Tokai Trw & Co., Ltd., where he has been instrumental in advancing automotive technologies. His work has not only improved vehicle handling but has also contributed to the overall safety and efficiency of automotive systems. His dedication to innovation has made him a respected figure in the automotive engineering community.

Collaborations

Throughout his career, Shigemitsu Tokunaga has collaborated with talented individuals such as Michio Abe and Naoyuki Maeda. These partnerships have fostered a creative environment that has led to the development of cutting-edge automotive technologies.

Conclusion

Shigemitsu Tokunaga's contributions to power steering technology exemplify the impact of innovation in the automotive industry. His patent for a power steering device showcases his commitment to enhancing vehicle performance and driver experience. His work continues to influence the future of automotive engineering.

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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