Nagoya, Japan

Kouichi Kokubo

This inventor holds 7 USPTO granted patents. Top assignees: Aisin Seiki Kabushiki Kaisha, Toyota Jidosha Kabushiki Kaisha. Active years: 1990-1993.

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

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 = 5.7

ph-index = 7

Forward Citations = 130(Granted Patents)


Company Filing History:


Years Active: 1990-1993

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7 patents (USPTO):Explore Patents

Title: Innovations of Kouichi Kokubo

Introduction

Kouichi Kokubo is a notable inventor based in Nagoya, Japan. He has made significant contributions to the field of vehicle suspension systems, holding a total of 7 patents. His work focuses on enhancing vehicle stability and maneuverability through innovative suspension technologies.

Latest Patents

One of his latest patents is an "Active suspension with variable roll rigidity distribution ratio." This invention aims to improve vehicle stability during normal turns and enhance maneuverability during high transverse acceleration turns. The active suspension utilizes an actuator to adjust the vehicle height, suppressing body roll in response to transverse acceleration. The roll rigidity distribution ratio is shifted towards the rear wheels as the load on the outside wheels increases during a turn.

Another significant patent is the "Pressure control system for suspension." This system applies pressure proportional to the current level supplied to a solenoid of a pressure control valve, affecting the shock absorbers of the vehicle's suspension. An electronic controller maintains a constant vehicle attitude despite changes in longitudinal and lateral acceleration detected by sensors. The system allows for dynamic adjustments based on driver input, enhancing the overall driving experience.

Career Highlights

Kouichi Kokubo has worked with prominent companies in the automotive industry, including Toyota Motor Corporation and Aisin Seiki Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in vehicle suspension technology.

Collaborations

Throughout his career, Kouichi has collaborated with talented individuals such as Takashi Yonekawa and Shuuichi Buma. These partnerships have contributed to the advancement of his inventions and the successful implementation of his patented technologies.

Conclusion

Kouichi Kokubo's contributions to vehicle suspension systems demonstrate his commitment to innovation and excellence in automotive engineering. His patents reflect a deep understanding of vehicle dynamics and a desire to enhance driving safety and performance.

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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