Toyota, Japan

Shiro Yuasa

This inventor holds 1 USPTO granted patent. Top assignees: Aisin Seiki Kabushiki Kaisha, Toyota Jidosha Kogyo Kabushiki Kaisha. Active years: 1977.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shiro Yuasa. Retrieved from https://idiyas.com/inventor/shiro-yuasa

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 = 14(Granted Patents)


Company Filing History:


Years Active: 1977

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1 patent (USPTO):Explore Patents

Title: Shiro Yuasa: Innovator in Automotive Steering Technology

Introduction

Shiro Yuasa is a notable inventor based in Toyota, Japan. He is recognized for his contributions to automotive technology, particularly in the development of steering devices. His innovative approach has led to advancements that enhance vehicle safety and performance.

Latest Patents

Yuasa holds a patent for a shock absorbing type steering device. This device is designed for use in motor vehicles and comprises a shaft that transmits torque from the steering wheel to the steering gear. The shaft consists of a first solid portion and a second hollow or cylindrical portion. The second portion includes both small and large diameter sections. The first solid shaft portion is rigidly fitted into the small diameter section of the second portion using shear pins. Additionally, a shock-absorbing resilient material is contained within the large diameter section, which is designed to rupture under excessive stress. This innovative design improves the overall safety and functionality of steering systems in vehicles.

Career Highlights

Throughout his career, Shiro Yuasa has worked with prominent companies in the automotive industry. He has been associated with Toyota Motor Corporation and Aisin Seiki Co., Ltd. His work in these organizations has significantly contributed to advancements in automotive technology.

Collaborations

Yuasa has collaborated with notable colleagues, including Takeo Kondo and Yoichi Hyodo. Their combined expertise has fostered innovation in the field of automotive engineering.

Conclusion

Shiro Yuasa's contributions to the automotive industry, particularly through his patented shock absorbing steering device, highlight his role as an influential inventor. His work continues to impact vehicle safety and performance, showcasing the importance of innovation in automotive technology.

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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