Shizuoka, Japan

Kouji Sakai

This inventor holds 7 USPTO granted patents and 2 published patent applications and 9 EPO patents. Top assignee: Yamaha Hatsudoki Kabushiki Kaisha. Active years: 2003-2010.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kouji Sakai. Retrieved from https://idiyas.com/inventor/kouji-sakai-cf0pyx2r

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank
USPTO Granted Patents = 7 

% Patents Active = 100.0

 

Average Co-Inventor Count = 1.2

ph-index = 5

Forward Citations = 61(Granted Patents)


Location History:

  • Iwata, JP (2003)
  • Shizuoka, JP (2003 - 2006)
  • Shizuoka-ken, JP (2010)

Company Filing History:


Years Active: 2003-2010

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7 patents (USPTO):Explore Patents

Title: Kouji Sakai: Innovator in Vehicle Reinforcement Technology

Introduction

Kouji Sakai is a prominent inventor based in Shizuoka, Japan. He has made significant contributions to the field of vehicle technology, particularly in the area of vehicle body reinforcement. With a total of 7 patents to his name, Sakai's innovations are paving the way for advancements in automotive safety and performance.

Latest Patents

Sakai's latest patents include a device for reinforcing the vehicle body and a sophisticated vehicle suspension system. The vehicle body reinforcement device features an elongated shape with a hydraulic damper in its middle portion, which produces a damping force against longitudinal deformation. This innovative design allows for two reinforcement devices to be mounted longitudinally on a vehicle body frame, creating a lateral space between them. Each device can be easily attached from outside the vehicle, ensuring accessibility and efficiency.

The vehicle suspension system developed by Sakai involves multiple supporting members, such as wheels, that carry the vehicle. The movement between these supporting members and the vehicle body is controlled by dampers, with several interrelationships disclosed among them. A flow regulator is incorporated to enhance damping forces under various operating conditions, showcasing Sakai's commitment to improving vehicle dynamics.

Career Highlights

Kouji Sakai is associated with Yamaha Hatsudoki Kabushiki Kaisha, a leading company in the automotive industry. His work at Yamaha has allowed him to focus on innovative solutions that enhance vehicle safety and performance. His contributions have been instrumental in advancing the company's reputation for quality and innovation in vehicle technology.

Collaborations

Sakai has collaborated with notable colleagues, including Toyoji Harada and Seiji Sawai. Their combined expertise has fostered a creative environment that encourages the development of groundbreaking technologies in the automotive sector.

Conclusion

Kouji Sakai's work exemplifies the spirit of innovation in the automotive industry. His patents reflect a deep understanding of vehicle dynamics and safety, making significant strides in vehicle technology. As he continues to develop new solutions, Sakai remains a key figure in the evolution 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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