Nagano, Japan

Kouji Sakai

This inventor holds 13 USPTO granted patents and 6 EPO patents. Top assignees: Autoliv Nissin Brake Systems Japan Co., Ltd., Nissin Kogyo Co., Ltd., Honda Motor Co., Ltd.. Active years: 2012-2021.

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

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


% Patents Active = 76.9

 

Average Co-Inventor Count = 3.3

ph-index = 3

Forward Citations = 22(Granted Patents)


Location History:

  • Nagano, JP (2012 - 2019)
  • Ueda, JP (2015 - 2021)

Company Filing History:


Years Active: 2012-2021

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13 patents (USPTO):Explore Patents

Title: The Innovations of Kouji Sakai: A Brake System Pioneer

Introduction

Kouji Sakai, an accomplished inventor based in Nagano, Japan, has made significant contributions to the field of automotive technology with a remarkable total of 13 patents. Renowned for his innovative designs and practical solutions, Sakai has focused primarily on improving brake systems for vehicles, showcasing his expertise and dedication to safety in automotive engineering.

Latest Patents

Among his latest innovations is the "Brake Fluid Pressure Control System for Vehicle." This system integrates a master cylinder, which is activated by the brake pedal, with a motor cylinder device that generates hydraulic pressure based on the operator's actions. Additionally, this system features first brake fluid flow lines connecting the master cylinder to wheel cylinders, along with two-position three-way valves that manage the flow between different components, enhancing the braking process and efficiency.

Another significant patent is the "Hydraulic Pressure Generation Apparatus." This apparatus includes a motor mounted on a base body, which contains two cylinder holes—one acting as a master cylinder and the other as a slave cylinder. Both cylinder holes are designed with closed bottoms and are expertly arranged to ensure optimal functionality. The parallel arrangement of the hydraulic components facilitates effective hydraulic pressure generation, crucial for advanced braking systems.

Career Highlights

Kouji Sakai has contributed to notable organizations such as Autoliv Nissin Brake Systems Japan Co., Ltd. and Nissin Kogyo Co., Ltd., where he has played pivotal roles in the development of innovative automotive technologies. His dedication to enhancing vehicle safety and performance is evident through his successful patent applications and groundbreaking inventions.

Collaborations

Throughout his career, Sakai has collaborated with talented individuals in the industry, including Nobuyuki Kobayashi and Risa Hirano. These partnerships have enabled him to push the boundaries of automotive technology, collaborating on projects that lead to significant advancements in brake system designs and applications.

Conclusion

Kouji Sakai stands out as a leading inventor in the automotive industry, thanks to his creativity and commitment to innovation. His latest patents reflect a deep understanding of vehicle dynamics and an unwavering pursuit of safety. As he continues to explore new frontiers in automotive technology, his contributions promise to shape the future of vehicle 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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