Gunma, Japan

Koji Hirooka

This inventor holds 1 USPTO granted patent. Top assignee: Kabushiki Kaisha Yamada Seisakusho. Active years: 2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Koji Hirooka. Retrieved from https://idiyas.com/inventor/koji-hirooka-vixnwoet

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 = 36(Granted Patents)


Company Filing History:


Years Active: 2002

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1 patent (USPTO):Explore Patents

Title: The Innovative Genius of Koji Hirooka: Revolutionizing Steering Column Safety

Introduction

Koji Hirooka, an inventive mind based in Gunma-ken, Japan, has made a significant contribution to automotive safety through his innovative patent. With a focus on creating solutions that enhance vehicle safety, Hirooka has exemplified the spirit of innovation in the automotive industry.

Latest Patents

One of Hirooka's notable inventions is the "Shock Absorbing Apparatus for Steering Column." This inventive device includes a sliding capsule with a collar portion fixed immovably to the vehicle body, designed to absorb collision energies effectively. The apparatus features a column bracket with a longitudinal shock-absorbing hole that incorporates a first shock-absorbing portion with a shaft-like member and a second shock-absorbing portion with a crushable inner peripheral edge. During a collision, the design effectively bends the shaft-like member and crushes the second shock absorbing portion, thereby significantly enhancing occupant safety.

Career Highlights

Hirooka is affiliated with Kabushiki Kaisha Yamada Seisakusho, where he has dedicated his efforts to improving vehicle safety technologies. His innovative work on the shock-absorbing apparatus has been pivotal in advancing the field, demonstrating his commitment to making vehicles safer for all.

Collaborations

Throughout his career, Hirooka has collaborated with esteemed coworkers like Mitsuo Yabutsuka and Isao Fujiu. These collaborations have undoubtedly enriched his perspectives and led to enhanced innovations within their shared field of expertise.

Conclusion

Koji Hirooka stands out as a remarkable inventor whose contributions, particularly in the realm of automotive safety, have the potential to save lives. His patent for the shock absorbing apparatus embodies a crucial advancement in steering column design, and his collaborations with talented colleagues further enhance the impact of his innovative spirit. As he continues to work at Kabushiki Kaisha Yamada Seisakusho, the future holds promise for more groundbreaking inventions from this talented inventor.

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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